1.1,"7/8-inch hardline coax connectors- construct at your own low cost","88","09","WA5FAC",95,"Sep 88"
1.1,"Antenna and control-link calculations for repeater licensing","73","11","W7PUG",58,"Nov 73"
1.1,"Antenna and control-link calculations for repeater licensing","73","12","Short circuit",59,"Dec 73"
1.1,"Antenna and feedline facts and fallacies","73","05","W5JJ",24,"May 73"
1.1,"Antenna Array Patterns with a Personal Computer","89","02","KC7MT",59,"Feb 89"
1.1,"Antenna control, automatic azimuth/elevation for satellite communications","75","01","WA3HLT",26,"Jan 75"
1.1,"Antenna control, automatic azimuth/elevation for satellite communications","75","12","Correction",58,"Dec 75"
1.1,"Antenna design, programmable calculator simplifies (HN)","74","05","W3DVO",70,"May 74"
1.1,"Antenna dimension (HN)","70","06","WA9JMY",66,"Jun 70"
1.1,"Antenna gain (letter)","76","05","W3AFM",62,"May 76"
1.1,"Antenna gain and directivity","79","08","W2PV",12,"Aug 79"
1.1,"Antenna gain, measuring","69","07","K6JYO",26,"Jul 69"
1.1,"Antenna geometry for optimum performance","82","05","N4HI",60,"May 82"
1.1,"Antenna insulators, PTFE VHF","85","10","W5JTL",98,"Oct 85"
1.1,"Antenna parameters, equations for determining","82","03","KG6B",40,"Mar 82"
1.1,"Antenna relay sequencing","87","10","KN5S",17,"Oct 87"
1.1,"Antenna restrictions (letter)","81","11","K3SRO",6,"Nov 81"
1.1,"Antenna restrictions: another solution","80","06","N4AQD",46,"Jun 80"
1.1,"Antenna support (HN)","84","06","W6XM",64,"Jun 84"
1.1,"Antenna switching, solid state","68","11","W2EEY",30,"Nov 68"
1.1,"Antenna wire, low-cost copper (HN)","77","02","W2EUQ",73,"Feb 77"
1.1,"Antennas and capture area","69","11","K6MIO",42,"Nov 69"
1.1,"Antennas, GFI, Capacitors, and Fundamentals","89","12","W6SAI",57,"Dec 89"
1.1,"Anti-QRM methods","71","05","W3FQJ",50,"May 71"
1.1,"Applied Yagi antenna design, part 2: 220 MHz and the Greenblum design data","84","06","WB3BGU",33,"Jun 84"
1.1,"Balun chop suey","85","05","K4KJ",113,"May 85"
1.1,"Battle of the Beams-pt 1","89","06","G4GVO",29,"Jun 89"
1.1,"Battle of the Beams-pt 2","89","08","G4GVO",20,"Aug 89"
1.1,"Battle of the Beams-pt 3","89","10","G4GVO",53,"Oct 89"
1.1,"Beam antenna mast lock","81","06","W4KV",68,"Jun 81"
1.1,"Best way to get an antenna into a tree (HN)","81","03","WA5VLX",84,"Mar 81"
1.1,"Bridge for antenna measurements, simple","70","09","W2CTK",34,"Sep 70"
1.1,"Bulkhead connector (HN)","85","04","K9CZB",78,"Apr 85"
1.1,"Bulkhead connector (HN)","85","07","Short circuit",74,"Jul 85"
1.1,"Coaxial connections, sealing (HN)","80","03","W5XW",64,"Mar 80"
1.1,"Coaxial connections, sealing (HN)","80","10","Letter, K7ZFG",6,"Oct 80"
1.1,"Common-point Grounding: Lightning Protection for Repeaters","89","07","K1ZJH",24,"Jul 89"
1.1,"Compact travel antenna","87","06","K1BQT",29,"Jun 87"
1.1,"Computerizing Smith Chart Network Analysis","89","10","N1AYW",10,"Oct 89"
1.1,"Computerizing Smith Chart Network Analysis","90","01","Short circuit",10,"Jan 90"
1.1,"Construction techniques using PVC pipe to make antennas","88","09","W2OQI",98,"Sep 88"
1.1,"Cubical quad measurements","69","01","W4YM",42,"Jan 69"
1.1,"De-icing the quad (HN)","80","08","W5TRS",75,"Aug 80"
1.1,"Design Data for Pipe Masts","89","07","W4MB",38,"Jul 89"
1.1,"Dipole antenna length reference chart (HN)","81","10","W6XM",75,"Oct 81"
1.1,"Dipole center insulator (HN)","69","05","WA1ABP",69,"May 69"
1.1,"Direction-finding tool, the fox box","85","10","K1ZJH",25,"Oct 85"
1.1,"Diversity receiving system","71","12","W2EEY",12,"Dec 71"
1.1,"Dummy load and rf wattmeter, low-power","70","04","W2OLU",56,"Apr 70"
1.1,"Dummy load, low-power vhf","73","09","WB9DNI",40,"Sep 73"
1.1,"Dummy loads, experimental","68","09","W8YFB",36,"Sep 68"
1.1,"Earth anchors for guyed towers","80","05","W5QJR",60,"May 80"
1.1,"Easy measurement of antenna currents (HN)","88","09","KO1F",39,"Sep 88"
1.1,"Effective radiated power (HN)","73","05","VE7CB",72,"May 73"
1.1,"Elmer's notebook: Standing wave ratio - what does it mean?","88","02","W1SL",98,"Feb 88"
1.1,"Feedpoint impedance characteristics of practical antennas","73","12","W5JJ",50,"Dec 73"
1.1,"Ferrite Beads as Antenna and Tower Guy lsolators(HN)","89","04","W4MB",72,"Apr 89"
1.1,"Filters, low-pass, for 10 and 15","72","01","W2EEY",42,"Jan 72"
1.1,"Gain calculations, simplified","78","05","W1DTV",78,"May 78"
1.1,"Gain vs antenna height, calculating","73","11","WB8IFM",54,"Nov 73"
1.1,"Gdo, new uses for","68","12","K2ZSQ",48,"Dec 68"
1.1,"Gin pole, simple lever for raising masts","77","05","WA2ANU",72,"May 77"
1.1,"Ground current measuring on 160-meters","79","06","W0KUS",46,"Jun 79"
1.1,"Ground rod resistance","84","07","K4MT",95,"Jul 84"
1.1,"Ground rod resistance","84","09","Comments",8,"Sep 84"
1.1,"Ground rods (letter)","71","05","W7FS",66,"May 71"
1.1,"Ground screen, alternative to radials","77","05","WB0JGP",22,"May 77"
1.1,"Ground systems (letter)","80","11","ZL2BJR",6,"Nov 80"
1.1,"Ground systems, installing effective","83","09","KR7L",67,"Sep 83"
1.1,"Ground systems, vertical antenna","74","05","W7LR",30,"May 74"
1.1,"Grounding, safer (letter)","72","05","WA5KTC",59,"May 72"
1.1,"Groundplane antenna","87","06","Comments: DJ0TR/OE8AK",6,"Jun 87"
1.1,"Groundplane antenna","87","10","Comments: W6BCX",6,"Oct 87"
1.1,"Half-delta loop","82","05","VE2CV",37,"May 82"
1.1,"Ham radio techniques","84","11","W6SAI",75,"Nov 84"
1.1,"Ham radio techniques","84","12","W6SAI",67,"Dec 84"
1.1,"Ham Radio techniques: A look at the groundplane antenna","88","10","W6SAI",38,"Oct 88"
1.1,"Ham Radio Techniques: antenna gain","90","01","W6SAI",30,"Jan 90"
1.1,"Ham Radio Techniques: Antenna Projects for Spring","89","04","W6SAI",55,"Apr 89"
1.1,"Ham radio techniques: antenna systems","87","05","W6SAI",55,"May 87"
1.1,"Ham Radio Techniques: Antenna Time","89","05","W6SAI",74,"May 89"
1.1,"Ham Radio Techniques: The MN analysis program, (that was then, this is now)","90","02","W6SAI",34,"Feb 90"
1.1,"Headings, beam antenna","71","04","W6FFC",64,"Apr 71"
1.1,"Homebrew antenna mount","87","05","W6QIR",35,"May 87"
1.1,"Hook, line 'n sinker (HN)","68","09","WA4NED",76,"Sep 68"
1.1,"Horizontal or vertical (HN)","72","06","W7IV",62,"Jun 72"
1.1,"Impedance measurements, nonresonant antenna","74","04","W7CSD",46,"Apr 74"
1.1,"Insulators, homemade antenna (HN)","73","05","W7ZC",70,"May 73"
1.1,"Isotropic source and practical antennas","70","05","K6FD",32,"May 70"
1.1,"Leyden's magic jar: the derivation of the Hertzian and Marconi antennas","84","10","KR6A",24,"Oct 84"
1.1,"Light-bulb dummy loads (HN)","81","10","W6HPH",74,"Oct 81"
1.1,"Lightning protection","78","12","K9MM",18,"Dec 78"
1.1,"Lightning protection","79","07","Comments, W2FBL",6,"Jul 79"
1.1,"Lightning protection","79","07","Comments, W6RTK",6,"Jul 79"
1.1,"Lightning protection","79","12","Letter, K9MM",12,"Dec 79"
1.1,"Lightning protection (C&T)","76","06","W1DTY",50,"Jun 76"
1.1,"Line-of-sight distance, calculating","76","11","WB5CBC",56,"Nov 76"
1.1,"Measurement techniques for antennas and transmission lines","74","05","W4OQ",36,"May 74"
1.1,"Measuring antenna gain","69","07","K6JYO",26,"Jul 69"
1.1,"Mobile Antenna Anti-rotate Device","89","05","W1OLP",40,"May 89"
1.1,"Mobile mount, rigid (HN)","73","01","VE7ABK",69,"Jan 73"
1.1,"More on elevated radials: HH Beverage's 1921 Counterpoise System (HN)","90","06","W6VX",57,"Jun 90"
1.1,"Neglected antenna for 40 and 80 meters","82","01","W0WL",44,"Jan 82"
1.1,"Neglected antenna for 40 and 80 meters","82","05","Comments, W0WL",8,"May 82"
1.1,"Power in reflected waves","71","10","Woods",49,"Oct 71"
1.1,"Practically Speaking: Antenna System Instruments","89","02","K4IPV",82,"Feb 89"
1.1,"Practically Speaking: RF Wattmeters and Antenna VSWR Meters","89","03","K4IPV",75,"Mar 89"
1.1,"Practically speaking: using antenna noise bridge","86","05","K4IPV",69,"May 86"
1.1,"Preamplifiers, Active antenna","86","05","R W. Burhans",47,"May 86"
1.1,"Radials, installing, for vertical antennas","80","10","K3ZAP",56,"Oct 80"
1.1,"Rain static resolved","83","09","W1FYX",83,"Sep 83"
1.1,"Reflected power, some reflections on","70","05","VE3AAZ",44,"May 70"
1.1,"Reflectometers","69","12","K1YZW",65,"Dec 69"
1.1,"Remote Control Switching System","89","10","VK2WD",62,"Oct 89"
1.1,"Remote Driver/Controller for a Two-antenna System","89","04","NH6N",79,"Apr 89"
1.1,"Rf current probe (HN)","68","10","W6HPH",76,"Oct 68"
1.1,"RF power meter, low-level","72","10","W5WGF",58,"Oct 72"
1.1,"Sampling network, rf - the milli-tap","73","01","W6QJW",34,"Jan 73"
1.1,"Scaling antenna elements","79","07","W7ITB",58,"Jul 79"
1.1,"Secrets of successful low-band operation: part1","86","05","K2RR",16,"May 86"
1.1,"Secrets of successful low-band operation: part2","86","06","K2RR",17,"Jun 86"
1.1,"Smith chart, how to use","70","11","W1DTY",16,"Nov 70"
1.1,"Smith chart, how to use","71","12","Correction",76,"Dec 71"
1.1,"Smith chart, numerical","78","03","W8MQW",104,"Mar 78"
1.1,"Solid-state T-R switch for tube transmitters","80","06","K1MC",58,"Jun 80"
1.1,"Standing-wave ratios, importance of","73","07","W2HB",26,"Jul 73"
1.1,"Standing-wave ratios, importance of","74","05","Correction: letter",67,"May 74"
1.1,"Static mystery","83","07","HB9FU",85,"Jul 83"
1.1,"T-R switch","69","04","K3KMO",61,"Apr 69"
1.1,"The bi-square array","90","05","N4LBJ",42,"May 90"
1.1,"The Zepp (letter)","82","08","W2RHQ",63,"Aug 82"
1.1,"Time-domain reflectometry, practical experimenter's approach","71","05","WA0PIA",22,"May 71"
1.1,"Vertical antenna, folded umbrella, top-loaded","82","09","VE2CV",12,"Sep 82"
1.1,"Vertical-vee, converting (letter)","82","09","KA5KWV",8,"Sep 82"
1.1,"VHF/UHF world","84","05","W1JR",110,"May 84"
1.1,"VHF/UHF world","86","09","W1JR",77,"Sep 86"
1.1,"Voltage-probe antenna","70","10","W1DTY",20,"Oct 70"
1.1,"VSWR and power meter, automatic","80","05","W0INK",34,"May 80"
1.1,"Wattmeter, low power (letter)","80","01","W0DLQ",6,"Jan 80"
1.1,"Wire plow, build a simple","84","05","W7IV",107,"May 84"
1.1,"Yagi design program","87","05","W6NBI",6,"May 87"
1.1,"Yagi vs Quad-part 1","88","05","K2SS",68,"May 88"
1.1,"Yagi vs Quad-part 2","88","06","K2SS",78,"Jun 88"
1.1,"Yagis, stacking is a science","88","05","K1FO",18,"May 88"
1.2,"12-Meter "Garage Plane"'Antenna","89","03","W8PDV",32,"Mar 89"
1.2,"14-MHz delta-loop array","78","09","N2GW",16,"Sep 78"
1.2,"160 meters with 40-meter vertical","72","10","W2IMB",34,"Oct 72"
1.2,"160-meter loop, receiving","74","05","K6HTM",46,"May 74"
1.2,"160-meter vertical, shortened (HN)","76","05","W6VX",72,"May 76"
1.2,"3-element Yagi design, key to","84","03","K3OQF",48,"Mar 84"
1.2,"3.5-MHz broadband antennas","79","05","N6RY",44,"May 79"
1.2,"3.5-MHz phased horizontal array","77","05","K4JC",56,"May 77"
1.2,"3.5-MHz sloping antenna array","79","05","W2LU",70,"May 79"
1.2,"3.5-MHz tree-mounted ground-plane","78","05","K2INA",48,"May 78"
1.2,"40, 80, and 160-meter vertical, remote controlled","84","05","W7LR",38,"May 84"
1.2,"7-MHz antenna array","78","08","K7CW",30,"Aug 78"
1.2,"7-MHz rotary beam","78","11","W7DI",34,"Nov 78"
1.2,"7-MHz short vertical antenna","77","06","W8TYX",60,"Jun 77"
1.2,"80-meter half-wave sloper uses reflector (HN)","84","10","KO1F",48,"Oct 84"
1.2,"80-meter half-wave sloper uses reflector (HN)","85","02","Short circuit",8,"Feb 85"
1.2,"Active antenna, 0.5-30 MHz","85","05","K1ZJH",37,"May 85"
1.2,"Active antenna, 0.5-30 MHz","85","07","Comment, Hansen, R.C.",10,"Jul 85"
1.2,"Adding 10 MHz to the HyGain HyTower","89","05","W5UOJ",38,"May 89"
1.2,"Aligning Yagi beam elements (HN)","81","05","WA2SON",92,"May 81"
1.2,"All band antenna portable (HN)","70","06","W2INS",68,"Jun 70"
1.2,"All-band phased-vertical","72","05","WA7GXO",32,"May 72"
1.2,"Analyzing 80-meter delta loop arrays","86","09","K1GQ",10,"Sep 86"
1.2,"Antenna potpourri","72","05","W3FQJ",54,"May 72"
1.2,"Antenna systems for 80 and 40 meters","70","02","K6KA",55,"Feb 70"
1.2,"Antenna, 3.5 MHz, for a small lot","73","05","W6AGX",28,"May 73"
1.2,"Applied Yagi antenna design, part 6: the model and a special teaching tool","84","10","WB3BGU",89,"Oct 84"
1.2,"Army loop antenna - revisited","71","09","W3FQJ",59,"Sep 71"
1.2,"Army loop antenna - revisited","72","01","Added notes",64,"Jan 72"
1.2,"Base-loaded vertical antenna for 160 meters","80","08","W6XM",64,"Aug 80"
1.2,"Beam antenna, improved triangular shaped","70","05","W6DL",20,"May 70"
1.2,"Beam for ten meters, economical","70","03","W1FPF",54,"Mar 70"
1.2,"Beverage antenna","71","12","W3FQJ",67,"Dec 71"
1.2,"Beverage antenna for 40 meters","79","07","KG6RT",40,"Jul 79"
1.2,"Big beam for 10 meters","68","03","K6KA",32,"Mar 68"
1.2,"Big quad - small yard","80","05","W6SUN",56,"May 80"
1.2,"Bobtail curtain and inverted ground plane: part1","83","02","Comments, WA7BPO",82,"Feb 83"
1.2,"Bobtail curtain and inverted ground plane: part1","83","02","W6BCX",82,"Feb 83"
1.2,"Bobtail curtain and inverted ground plane: part1","83","11","Short circuit",92,"Nov 83"
1.2,"Bobtail curtain and inverted ground plane: part2","83","03","W6BCX",28,"Mar 83"
1.2,"Bobtail curtain and inverted ground plane: part2","83","05","Short circuit",16,"May 83"
1.2,"Bobtail curtain and inverted ground plane: part2","83","07","Comments, WA7BPO",12,"Jul 83"
1.2,"Bobtail curtain array","77","05","W8YFB",81,"May 77"
1.2,"Bobtail curtain array, forty-meter","69","07","VE1TG",58,"Jul 69"
1.2,"Butterfly beam","81","05","W1XU",30,"May 81"
1.2,"Capacitively loaded dipole, high-performance","84","05","W6VX",33,"May 84"
1.2,"Coaxial dipole antenna, analysis of","76","08","W2DU",46,"Aug 76"
1.2,"Coaxial dipole, multiband (HN)","73","05","W4BDK",71,"May 73"
1.2,"Collapsible Quad for 10-Meter Hilltopping","89","11","W4RNL",70,"Nov 89"
1.2,"Collinear, six-element for","76","05","W0YBF",22,"May 76"
1.2,"Compact antennas for 20 meters","71","05","W4ROS",38,"May 71"
1.2,"Compact loop antenna for 80 and 40 meters","79","10","W6TC",24,"Oct 79"
1.2,"Converted-vee, 80 and 40 meter","69","12","W6JKR",18,"Dec 69"
1.2,"Convoluted Loop, The","89","04","W5QJR",89,"Apr 89"
1.2,"Corner-fed loop, low frequency","76","04","ZL1BN",30,"Apr 76"
1.2,"Corner-fed loop, low frequency","77","02","installation modified",41,"Feb 77"
1.2,"Cubical quad, improved low-profile, three band","76","05","W1HXU",25,"May 76"
1.2,"Cubical quad, three-band","75","07","W1HXU",22,"Jul 75"
1.2,"Cubical-quad antenna design parameters","70","08","K6OPZ",55,"Aug 70"
1.2,"Cubical-quad antennas, mechanical design of","74","10","VE3II",44,"Oct 74"
1.2,"Cubical-quad antennas, unusual","70","05","W1DTY",6,"May 70"
1.2,"Curtain antenna (HN)","72","05","W4ATE",66,"May 72"
1.2,"De-icing the quad (HN)","80","08","W5TRS",75,"Aug 80"
1.2,"Debunking myths (letter)","83","03","WB9VWA",8,"Mar 83"
1.2,"Delta loop, the reduced-size, full-performance, corner-fed","85","01","G3TKN",67,"Jan 85"
1.2,"Delta loop, top-loaded","78","12","W1DTY",57,"Dec 78"
1.2,"Designing trap antennas: a new approach","87","08","W0JF",60,"Aug 87"
1.2,"Designing Yagis with the Commodore 64","86","01","N0CAO",107,"Jan 86"
1.2,"Dipole antenna over sloping ground","82","05","N4HI",18,"May 82"
1.2,"Dipole antenna, trimming the (HN)","81","07","W5NPD",69,"Jul 81"
1.2,"Dipole antennas on non-harmonic frequencies (HN)","69","03","W2CTK",72,"Mar 69"
1.2,"Dipole beam","74","06","W3FQJ",56,"Jun 74"
1.2,"Dipole pairs, low SWR","72","10","W6FPO",42,"Oct 72"
1.2,"Dipole sloping inverted-vee","69","02","W6NIF",48,"Feb 69"
1.2,"Dipole, all-band tuned","72","10","ZS6BT",22,"Oct 72"
1.2,"Double bi-square array","71","05","W6FFF",32,"May 71"
1.2,"Dual-band antennas, compact","70","03","W6SAI",18,"Mar 70"
1.2,"DX antenna, single-element","72","12","W6FHM",52,"Dec 72"
1.2,"DX antenna, single-element","73","10","Performance: letter",65,"Oct 73"
1.2,"Easy Antenna Access for Urban Apartment Dwellers, The Weekender:","89","04","NU1N",18,"Apr 89"
1.2,"Elmer's notebook: ten-meter skyware","88","07","W1SL",90,"Jul 88"
1.2,"End-fed 8JK; switchable vertical array","85","05","W1JF",53,"May 85"
1.2,"Five-band dipole","88","09","W6HPH",76,"Sep 88"
1.2,"Fold wire Fed Top-Loaded Grounded Vertical","89","05","K3OOF",32,"May 89"
1.2,"Folded end-fire radiator","80","10","N7WD",44,"Oct 80"
1.2,"Folded mini-monopole antenna","68","05","W6SAI",32,"May 68"
1.2,"Folded umbrella antenna","79","05","WB5IIR",38,"May 79"
1.2,"Four-band wire antenna","75","08","W3FQJ",53,"Aug 75"
1.2,"Four-vertical collinear element 20-meter array","83","05","WA8DXB",57,"May 83"
1.2,"Ground plane, three-band","72","05","LA1EI",6,"May 72"
1.2,"Ground plane, three-band","72","10","Footnote: letter",65,"Oct 72"
1.2,"Ground plane, three-band","72","12","Correction",91,"Dec 72"
1.2,"Ground systems for vertical antennas","79","08","WD8CBJ",31,"Aug 79"
1.2,"Ground-mounted vertical antennas","90","06","W7DHD, K3BN",11,"Jun 90"
1.2,"Ground-mounted vertical for the lowerbands, improved (HN)","80","11","W5NPD",68,"Nov 80"
1.2,"Ground-plane antenna: history and development","77","01","K2FF",26,"Jan 77"
1.2,"Ground-plane, multiband (HN)","71","05","JA1QIY",62,"May 71"
1.2,"Grounded monopole with elevated feed","83","05","VE2CV",87,"May 83"
1.2,"Half-square antenna, the","81","12","N0AN",48,"Dec 81"
1.2,"Half-square antenna, the","82","10","Short circuit",79,"Oct 82"
1.2,"Half-wave vertical","81","09","VE2CV",36,"Sep 81"
1.2,"Ham radio techniques","81","09","W6SAI",32,"Sep 81"
1.2,"Ham radio techniques (01/84)","84","01","W6SAI",65,"Jan 84"
1.2,"Ham radio techniques (01/84)","84","09","Comments, WA2DRL",8,"Sep 84"
1.2,"Ham radio techniques (02/84)","84","02","W6SAI",63,"Feb 84"
1.2,"Ham radio techniques (02/84)","84","05","Comments, K4KYV",12,"May 84"
1.2,"Ham radio techniques (02/84)","84","09","Comments, WD6DUD",8,"Sep 84"
1.2,"Ham radio techniques (02/84)","84","12","Comments, AD1G",8,"Dec 84"
1.2,"Ham radio techniques (03/84)","84","03","W6SAI",53,"Mar 84"
1.2,"Ham radio techniques (04/84)","84","04","W6SAI",76,"Apr 84"
1.2,"Ham radio techniques (07/84), 160 redux","84","07","W6SAI",89,"Jul 84"
1.2,"Ham radio techniques (07/87): 80-meter antenna, 160-meter discone antenna","87","07","W6SAI",57,"Jul 87"
1.2,"Ham radio techniques (08/84)","84","08","W6SAI",96,"Aug 84"
1.2,"Ham radio techniques (09/87): antennas","87","09","W6SAI",57,"Sep 87"
1.2,"Ham radio techniques (10/84)","84","10","W6SAI",106,"Oct 84"
1.2,"Ham radio techniques (12/85)","85","12","W6SAI",55,"Dec 85"
1.2,"Ham radio techniques, fifty years ago","84","06","W6SAI",58,"Jun 84"
1.2,"Ham Radio techniques: "radio ground" on 160 meters","88","03","W6SAI",53,"Mar 88"
1.2,"Ham Radio Techniques: 160-meter antenna problems and solutions","90","03","W6SAI",49,"Mar 90"
1.2,"Ham Radio techniques: a nifty bi-square a beam for 10 or 12 meters","88","06","W6SAI",68,"Jun 88"
1.2,"HAM Radio Techniques: The Log Periodic Antenna Family","89","09","W6SAI",20,"Sep 89"
1.2,"Ham radio techniques: time and frequency station WWVS, minibeam design, etc","87","06","W6SAI",37,"Jun 87"
1.2,"Ham Radio techniques: why not a two-element Yagi","88","05","W6SAI",36,"May 88"
1.2,"Helical whip for RV and mobile use (Weekender)","90","05","W0BHG",24,"May 90"
1.2,"HF antenna (HN)","83","07","W2GQK",22,"Jul 83"
1.2,"HF Mobile Antenna","89","09","NC0B",9,"Sep 89"
1.2,"HF mobile antennas, another look at (Weekender)","90","03","W5FG",12,"Mar 90"
1.2,"High Performance Duoband Yagi for 15 and 20 meters","89","08","KN2M",41,"Aug 89"
1.2,"High-frequency amateur antennas","69","04","W2WLR",28,"Apr 69"
1.2,"High-frequency diversity antennas","69","10","W2WLR",28,"Oct 69"
1.2,"High-frequency Yagi antennas, understacking","80","06","W1XT",62,"Jun 80"
1.2,"High-gain phased array, experimental","80","05","KL7IEH",44,"May 80"
1.2,"High-gain phased array, experimental","80","09","Short circuit",67,"Sep 80"
1.2,"Horizontal antennas, optimum height for","74","06","W7LR",40,"Jun 74"
1.2,"Horizontal antennas, vertical radiation patterns","74","05","WA9RQY",58,"May 74"
1.2,"Horizontal-antenna gain at selected vertical radiation angles","76","02","W7LR",54,"Feb 76"
1.2,"How high should your HF antenna be?","86","05","W5QJR",89,"May 86"
1.2,"Inexpensive triband mobile antenna (Weekender)","90","05","AD5X",62,"May 90"
1.2,"Inverted 'L' limited space (HN)","84","06","W8FR",63,"Jun 84"
1.2,"Inverted V or delta loop, how to add to tower","76","07","K4DJC",32,"Jul 76"
1.2,"Inverted-vee antenna (letter)","71","05","WB6AQF",66,"May 71"
1.2,"Inverted-vee antenna, modified","71","10","W2KTW",40,"Oct 71"
1.2,"Inverted-vee Installation, Improved low-band (HN)","76","05","W9KNI",68,"May 76"
1.2,"JR vari-lobe antenna, control your take-off angle","85","05","W1JF",46,"May 85"
1.2,"Junk-box portable antenna","81","10","W3SMT",24,"Oct 81"
1.2,"K4EF Long Wire Antenna Designs","89","09","K4EF",32,"Sep 89"
1.2,"K7CW quad","82","09","K7CW",36,"Sep 82"
1.2,"Large vertical, 160 and 180 meters","75","05","W7IV",8,"May 75"
1.2,"Log periodic design","79","12","W6PYK, W4AEO",34,"Dec 79"
1.2,"Log-periodic antenna, 14, 21 and 28 MHz","73","08","W4AEO",18,"Aug 73"
1.2,"Log-periodic antennas for high-frequency Amateur bands","80","01","W4AEO, W6PYK",67,"Jan 80"
1.2,"Log-periodic antennas, 7-MHz","73","05","W4AEO",16,"May 73"
1.2,"Log-periodic antennas, feed system for","74","10","W4AEO",30,"Oct 74"
1.2,"Log-periodic antennas, graphical design method for","75","05","W4AEO",14,"May 75"
1.2,"Log-periodic antennas, vertical monopole, 3.5 and 7.0 MHz","73","09","W4AEO",44,"Sep 73"
1.2,"Log-periodic beam, 15 and 20 meters","74","05","W4AEO",6,"May 74"
1.2,"Log-periodic beams, improved (letter)","75","05","W4AEO",74,"May 75"
1.2,"Log-periodic feeds (letter)","74","05","W4AEO",66,"May 74"
1.2,"Log-periodic fixed-wire beams for 40 meters","80","04","W4AEO, W6PYK",26,"Apr 80"
1.2,"Log-periodic fixed-wire beams for 75-meter DX","80","03","W4AEO, W6PYK",40,"Mar 80"
1.2,"Log-periodic, three-band","72","09","W4AEO",28,"Sep 72"
1.2,"Log-Yagis simplified","83","05","W3EB",78,"May 83"
1.2,"Longwire antenna. new design","77","05","K4EF",10,"May 77"
1.2,"Longwire multiband antenna","69","11","W3FQJ",28,"Nov 69"
1.2,"Loop antenna, compact (letter)","80","02","W6WR",6,"Feb 80"
1.2,"Loop antennas","76","12","W4OQ",18,"Dec 76"
1.2,"Loop receiving antenna","75","05","W2IMB",66,"May 75"
1.2,"Loop receiving antenna","75","12","Correction",58,"Dec 75"
1.2,"Loop-yagi antennas","76","05","VK2ZTB",30,"May 76"
1.2,"Low-band antenna problem, solution to","78","01","W8YFB",46,"Jan 78"
1.2,"Low-mounted antennas","73","05","W3FQJ",66,"May 73"
1.2,"Making verticals quieter","83","06","WA6RYZ",98,"Jun 83"
1.2,"Matching dipoles (letter)","85","08","W5XW",8,"Aug 85"
1.2,"Mobile antenna, helically wound","72","12","ZE6JP",40,"Dec 72"
1.2,"Mobile color code (letter)","78","01","WB6JFD",90,"Jan 78"
1.2,"Mobile high-frequency antenna, refinements to","81","06","W3NZ",34,"Jun 81"
1.2,"Mobile vertical, 20-meter","83","05","K9CZB",26,"May 83"
1.2,"Modified Bobtail (HN)","84","09","W0MBP",87,"Sep 84"
1.2,"Mono-loop antenna (HN)","69","09","W8BW",70,"Sep 69"
1.2,"Multiband 8JK, an end-fed","84","05","G3SBA",81,"May 84"
1.2,"Multiband antenna system","79","05","VK2AOU",62,"May 79"
1.2,"Multiband dipoles for portable use","70","05","W6SAI",12,"May 70"
1.2,"Multiband vertical antenna system","78","05","W0NCU",28,"May 78"
1.2,"N5NBU "Nice But Ugly $1.29 Antenna"","89","05","N5NBU",39,"May 89"
1.2,"New class of directive antennas","86","04","W4MB",107,"Apr 86"
1.2,"New class of directive antennas","86","07","Comment, AG4R",9,"Jul 86"
1.2,"No-compromise, multiband, low VSWR dipole","87","05","GM3HAT",69,"May 87"
1.2,"NO5H All-Band Dipole","89","06","NO5H",82,"Jun 89"
1.2,"Nonresonant delta and V beam antennas","90","05","KL7ISA",49,"May 90"
1.2,"Odd antennas, comments","86","08","W9RXC",9,"Aug 86"
1.2,"Offset drooper: an improved ground plane","86","02","W6BCX",43,"Feb 86"
1.2,"Old antennas, comments","86","02","W0MBP",9,"Feb 86"
1.2,"Open quad antenna","80","07","I2RR",36,"Jul 80"
1.2,"Optimizing gain on Yagi antennas","88","03","K2SS",21,"Mar 88"
1.2,"Phased antenna (letter)","78","10","Thacker, Jerry",6,"Oct 78"
1.2,"Phased array, design your own","77","05","K1AON",78,"May 77"
1.2,"Phased array, electrically-controlled","75","05","W5TRS",52,"May 75"
1.2,"Phased arrays, feeding: an alternative method","85","05","KB8I",58,"May 85"
1.2,"Phased arrays, feeding: an alternative method","85","07","Short circuit",74,"Jul 85"
1.2,"Phased vertical antenna for 21 MHz","80","06","W6XM",42,"Jun 80"
1.2,"Phased vertical array, fine tuning","77","05","W4FXE",46,"May 77"
1.2,"Phased vertical array, four-element","75","05","W8HXR",24,"May 75"
1.2,"Phased vertical arrays, pattern calculations for","81","05","WB5HGR",40,"May 81"
1.2,"Practically Speaking: High Frequency Dipole Antenna-pt 1","89","05","K4IPV",92,"May 89"
1.2,"Practically Speaking: High-Frequency Dipole Antenna-pt 2","89","06","K4IPV",53,"Jun 89"
1.2,"Practically Speaking: Vertically Polarized HF Antennas-pt 1","89","08","K4IPV",71,"Aug 89"
1.2,"Practically Speaking: Vertically Polarized HF Antennas-pt 2","89","09","K4IPV",45,"Sep 89"
1.2,"Practically Speaking: Vertically Polarized HF Antennas-pt 3","89","10","K4IPV",81,"Oct 89"
1.2,"Pt. I Yagi antenna design: performance calculations","80","01","W2PV",23,"Jan 80"
1.2,"Pt. I Yagi antenna design: performance calculations","80","09","Short circuit",66,"Sep 80"
1.2,"Pt. II Yagi antenna design: experiments confirm computer analysis","80","02","W2PV",19,"Feb 80"
1.2,"Pt. III Yagi antenna design: performance of multi-element simplistic beams","80","05","W2PV",18,"May 80"
1.2,"Pt. IV Yagi antenna design: multi-element simplistic beams","80","06","W2PV",33,"Jun 80"
1.2,"Pt. IX Yagi antennas: practical designs","80","12","W2PV",30,"Dec 80"
1.2,"Pt. V Yagi antenna design: optimizing performance","80","07","W2PV",18,"Jul 80"
1.2,"Pt. VI Yagi antenna design: quads and quagis","80","09","W2PV",37,"Sep 80"
1.2,"Pt. VII Yagi antenna design: ground or earth effects","80","10","W2PV",29,"Oct 80"
1.2,"Pt. VIII Yagi antenna design: stacking","80","11","W2PV",22,"Nov 80"
1.2,"PV-4 on Your Commodore","89","10","WA3EKL",64,"Oct 89"
1.2,"PV-4 on Your Commodore","90","01","Short circuit",64,"Jan 90"
1.2,"Quad antenna, modified","78","09","ZF1MA",68,"Sep 78"
1.2,"Quad antenna, multiband","69","08","DJ4VM",41,"Aug 69"
1.2,"Quad antenna, repairs (HN)","78","05","K9MM",87,"May 78"
1.2,"Quad antenna: part 1-general concepts","88","05","W4MB",43,"May 88"
1.2,"Quad antenna: part 2-circular and octagonal loops","88","06","W4MB",54,"Jun 88"
1.2,"Quad antenna: part 3-circular loop and octagonal arrays","88","08","W4MB",34,"Aug 88"
1.2,"Quad for 7-28 MHz","80","11","W3NZ",12,"Nov 80"
1.2,"Quad owner switches","82","05","N6NB, W6AQ",12,"May 82"
1.2,"Quad owner switches","82","12","Comments, W6BQD",8,"Dec 82"
1.2,"Quad variations, more (HN)","80","10","W5TRS",72,"Oct 80"
1.2,"Quad variations, more (HN)","82","02","Short circuit",70,"Feb 82"
1.2,"Quad, three-element switchable, for 40 meters","80","10","N8ET",26,"Oct 80"
1.2,"Quad, three-element, for 15-20 meters using circular elements","80","05","W4OVO",12,"May 80"
1.2,"Quads vs Yagis revisited","79","05","N6NB",12,"May 79"
1.2,"Quads vs Yagis revisited","79","10","Comments, WB6MMV, N6NB",80,"Oct 79"
1.2,"Receiving antennas","70","05","K6ZGQ",56,"May 70"
1.2,"Rhombics, controlled vertical radiation, part 1: designing for high performance","85","03","N4UH",100,"Mar 85"
1.2,"Rhombics, controlled vertical radiation, part 2: antenna erection and performance","85","04","N4UH",99,"Apr 85"
1.2,"Rotatable trap dipole for 12 and 17 meters","90","05","KD9SV",22,"May 90"
1.2,"Satellite antenna, simple (HN)","75","02","WA6PXY",59,"Feb 75"
1.2,"Secrets of successful low-band operation: part1","86","05","K2RR",16,"May 86"
1.2,"Secrets of successful low-band operation: part2","86","06","K2RR",17,"Jun 86"
1.2,"SEED antenna: a short, efficient end-fed dipole","84","09","W4JAZ",103,"Sep 84"
1.2,"Selective antenna system minimizes unwanted signals","76","05","W5TRS",28,"May 76"
1.2,"Selective receiving antennas","78","05","W5TRS",20,"May 78"
1.2,"Short antennas, efficiency of","82","09","W1GV/4",18,"Sep 82"
1.2,"Short vertical antennas for low bands: part1","83","05","W7DHD",36,"May 83"
1.2,"Short vertical antennas for low bands: part2","83","06","W7DHD",17,"Jun 83"
1.2,"Shortened 40-meter four-element sloping dipole array","88","05","OE5CWL",74,"May 88"
1.2,"Shunt-fed tower (HN)","79","11","N6HZ",74,"Nov 79"
1.2,"Shunt-feed systems for grounded vertical radiators, how to design","75","05","W4OQ",34,"May 75"
1.2,"Simple 1-, 2- and 3-band antennas","68","07","W9EGQ",54,"Jul 68"
1.2,"Simple antennas for 40 and 80","72","12","W5RUB",16,"Dec 72"
1.2,"Six-element wide-beam for 10 (ham radio techniques)","81","12","W6SAI",30,"Dec 81"
1.2,"Sloping dipoles","72","12","W5RUB",19,"Dec 72"
1.2,"Sloping dipoles","73","05","Performance: letter",76,"May 73"
1.2,"Small beams, high performance","79","03","G6XN",12,"Mar 79"
1.2,"Small-loop antennas","72","05","W4YOT",36,"May 72"
1.2,"Stagger-tuned dipoles increase band-width","83","05","K4MT",22,"May 83"
1.2,"Stressed quad (HN)","78","09","W5TIU",40,"Sep 78"
1.2,"Structural evaluation of Yagi elements","88","12","K5IU",29,"Dec 88"
1.2,"Stub bandswitched antennas","69","07","W2EEY",50,"Jul 69"
1.2,"Suitcase antenna, high-frequency","73","05","VK5BI",61,"May 73"
1.2,"Suspended long Yagi (ham radio techniques)","81","11","W6SAI",34,"Nov 81"
1.2,"Tailoring your antenna, how to","73","05","KH6HDM",34,"May 73"
1.2,"Tapered vertical, calculating the input impedance of","85","08","K3OQF",24,"Aug 85"
1.2,"Tapered vertical, calculating the input impedance of","88","10","Short circuit",78,"Oct 88"
1.2,"Telephone-wire antenna (HN)","76","05","K9TBD",70,"May 76"
1.2,"Terminated vee beam, sloping","85","05","Ross, Robert",71,"May 85"
1.2,"TH3 juniour drooping, stop your (HN)","90","02","VK6SY",30,"Feb 90"
1.2,"The bi-square array","90","05","N4LBJ",42,"May 90"
1.2,"The Gottingen heart antenna","90","05","K3OQF",11,"May 90"
1.2,"The K2GNC Giza beam","81","05","K2GNC",52,"May 81"
1.2,"Three Element Vertical Driven Array For 10 Meters","89","10","WB5IRI",22,"Oct 89"
1.2,"Three-band ground plane","68","10","W6HPH",32,"Oct 68"
1.2,"Three-band sloper for 7, 18 and 24 MHz (HN)","88","05","W5FG",58,"May 88"
1.2,"Top-loaded vertical, a high-efficiency","84","10","W6US",65,"Oct 84"
1.2,"Transmission line antenna, 160-meter","85","05","N9NB",87,"May 85"
1.2,"Trap antenna, design your own","84","10","W4MB",37,"Oct 84"
1.2,"Trapped antenna, trapping the mysteries of","81","10","N3GO",10,"Oct 81"
1.2,"Trapped antenna, trapping the mysteries of","82","02","Comments, K9CZB",8,"Feb 82"
1.2,"Traps and trap antennas","79","08","W8FX",34,"Aug 79"
1.2,"Triangle antennas","71","08","W3FQJ",56,"Aug 71"
1.2,"Triangle antennas","72","05","W6KIW",58,"May 72"
1.2,"Triangle antennas (letter)","71","11","K4ZZV",72,"Nov 71"
1.2,"Triangle beams","71","12","W3FQJ",70,"Dec 71"
1.2,"Triband Yagi beam (ham radio techniques)","81","01","W6SAI",68,"Jan 81"
1.2,"Tuning aid for the sightless (HN)","76","09","W6VX",83,"Sep 76"
1.2,"Two delta loops fed in phase","81","08","W8HXR",60,"Aug 81"
1.2,"Two single 80-meter radiators for short and long skip (HN)","88","11","YO4WU",98,"Nov 88"
1.2,"Two-element hf beams","87","05","G6XN",8,"May 87"
1.2,"Unidirectional antenna for the low-frequency bands","70","01","GW3NJY",61,"Jan 70"
1.2,"Vertical antenna for 40 and 75 meters","79","09","W6PYK",44,"Sep 79"
1.2,"Vertical antenna radiation patterns","74","04","W7LR",50,"Apr 74"
1.2,"Vertical antenna, low-band","72","07","W4IYB",70,"Jul 72"
1.2,"Vertical antenna, portable","78","06","WA8NWL",48,"Jun 78"
1.2,"Vertical antenna, three-band","74","05","W9BQE",44,"May 74"
1.2,"Vertical antennas, improving performance of","74","12","K6FD",54,"Dec 74"
1.2,"Vertical antennas, performance characteristics","74","03","W7LR",34,"Mar 74"
1.2,"Vertical beam antenna, 80 meter","70","05","VE1TG",26,"May 70"
1.2,"Vertical dipole, gamma-loop-fed","72","05","W6SAI",19,"May 72"
1.2,"Vertical for 80 meters, top-loaded","71","09","W2MB",20,"Sep 71"
1.2,"Vertical phased arrays: part1","83","05","K2BT",18,"May 83"
1.2,"Vertical phased arrays: part1","84","03","Comments, W9OAM",10,"Mar 84"
1.2,"Vertical phased arrays: part2","83","06","K2BT",25,"Jun 83"
1.2,"Vertical phased arrays: part2","84","03","Comments, W9OAM",10,"Mar 84"
1.2,"Vertical phased arrays: part3","83","07","K2BT",26,"Jul 83"
1.2,"Vertical phased arrays: part3","83","10","Short circuit",70,"Oct 83"
1.2,"Vertical phased arrays: part3","84","03","Comments, W9OAM",10,"Mar 84"
1.2,"Vertical phased arrays: part4","83","10","K2BT",34,"Oct 83"
1.2,"Vertical phased arrays: part4","83","12","Short circuit",11,"Dec 83"
1.2,"Vertical phased arrays: part4","84","03","Comments, W9OAM",10,"Mar 84"
1.2,"Vertical phased arrays: part5","83","12","K2BT",59,"Dec 83"
1.2,"Vertical phased arrays: part5","84","03","Comments, W9OAM",10,"Mar 84"
1.2,"Vertical phased arrays: part6","84","05","K2BT",45,"May 84"
1.2,"Vertical radiators","73","04","W4OQ",16,"Apr 73"
1.2,"Vertical, top-loaded 80 meter","69","06","VE1TG",48,"Jun 69"
1.2,"Vertical-tower antenna system","73","05","W4OQ",56,"May 73"
1.2,"Verticals over REAL ground","84","01","WB9VWA",35,"Jan 84"
1.2,"Vibration Induced Yagi Fatique Failures","89","08","K5IU",9,"Aug 89"
1.2,"W2PV 80-meter quad","86","05","K1GQ",56,"May 86"
1.2,"WBJK antenna for 40, 30 and 20 meters","88","05","N6YC",9,"May 88"
1.2,"WBJK antenna, a new look at","81","07","OD5CG",60,"Jul 81"
1.2,"Whips and loops as apartment antennas","68","03","W2EEY",80,"Mar 68"
1.2,"Wilson Mark II and IV, modifications to (HN)","80","01","W9EPT",89,"Jan 80"
1.2,"Windom antenna (letter)","78","11","K6KA",6,"Nov 78"
1.2,"Windom antenna, four-band","74","01","W4VUO",62,"Jan 74"
1.2,"Windom antenna, four-band","74","09","Correction: letter",74,"Sep 74"
1.2,"Windom antennas","78","05","K4KJ",10,"May 78"
1.2,"Yagi beam elements, aligning (HN)","81","01","WA2SON",79,"Jan 81"
1.2,"Yagis, designing with the Commodore 64","83","06","WA3EKL",59,"Jun 83"
1.2,"Yagis, stacking is a science","85","05","K1FO",18,"May 85"
1.2,"Zepp antenna, extended","73","12","W6QVI",48,"Dec 73"
1.2,"ZL special antenna, 10-meter, for indoor use","80","05","K5AN",50,"May 80"
1.2,"ZL special antenna, understanding the","76","05","WA6TKT",38,"May 76"
1.3,"10-GHz dielectric antenna (HN)","75","05","WA4WDL",80,"May 75"
1.3,"1296-MHz antenna, high-gain","78","05","W3AED",74,"May 78"
1.3,"1296-MHz Yagi array","75","05","W3AED",70,"May 75"
1.3,"144-MHz antenna, 5/8-wavelength built from CB mobile whip (HN)","74","06","WB4WSU",67,"Jun 74"
1.3,"144-MHz collinear uses PVC pipe mast (HN)","76","05","K8LLZ",66,"May 76"
1.3,"144-MHz mobile antenna","79","05","WD8QIB",68,"May 79"
1.3,"144-MHz mobile antenna (HN)","77","03","W2EUQ",80,"Mar 77"
1.3,"144-MHZ vertical mobile antennas, 1/4 and 5/8 wavelength, test data on","76","05","W2LTJ, W2CQH",46,"May 76"
1.3,"144-MHz vertical, 5/8-wavelength","74","07","K6KLO",40,"Jul 74"
1.3,"144-MHZ, 5/8-wavelength vertical","76","03","W1RHN",50,"Mar 76"
1.3,"144-MHz, 5/8-wavelength, vertical antenna for mobile","76","05","K4LPQ",42,"May 76"
1.3,"2-meter J-pole antenna, all-metal","84","07","KD8JB",42,"Jul 84"
1.3,"2-meter J-pole antenna, all-metal","85","02","Comments, K2WWT, KD8JB",8,"Feb 85"
1.3,"2-meter J-pole antenna, all-metal","85","11","Comments, DJ0TR/OE8AK",8,"Nov 85"
1.3,"2-meter V-antenna","84","01","AD1B",86,"Jan 84"
1.3,"432-MHz high-gain Yagi","76","01","K6HCP",46,"Jan 76"
1.3,"432-MHz high-gain Yagi","76","05","Comments, W0PW",63,"May 76"
1.3,"432-MHz OSCAR antenna (HN)","75","07","W1JAA",58,"Jul 75"
1.3,"7-MHz attic antenna (HN)","76","05","W2ISL",68,"May 76"
1.3,"Antenna insulators, PTFE VHF","85","10","W5JTL",98,"Oct 85"
1.3,"Antenna-performance measurements using celestial sources","79","05","W5CC/W4RXY",75,"May 79"
1.3,"Antennas for satellite communications, simple","74","05","K4GSX",24,"May 74"
1.3,"Applied Yagi antenna design, part 1: a 2-meter classic revisited","84","05","WB3BGU",14,"May 84"
1.3,"Applied Yagi antenna design, part 2: 220 MHz and the Greenblum design data","84","06","WB3BGU",33,"Jun 84"
1.3,"Applied Yagi antenna design, part 3: 432 MHz with Knadle and Tillon","84","07","WB3BGU",73,"Jul 84"
1.3,"Applied Yagi antenna design, part 4: a 50-MHz Tilton/Greenblum design","84","08","WB3BGU",103,"Aug 84"
1.3,"Applied Yagi antenna design, part 5: additional optimization techniques","84","09","WB3BGU",93,"Sep 84"
1.3,"Circularly-polarized ground-plane antenna for satellite communications","74","12","K4GSX",28,"Dec 74"
1.3,"Colagi antenna, The","86","05","VE3BFM",61,"May 86"
1.3,"Collinear antenna (letter)","71","10","W6SAI",70,"Oct 71"
1.3,"Collinear antenna for two meters, nine-element","72","05","W6RJO",12,"May 72"
1.3,"Collinear antenna, four element 440-MHz","73","05","WA6HTP",38,"May 73"
1.3,"Collinear array for two meters, 4-element","71","05","WB6KGF",8,"May 71"
1.3,"Collinear, six meter","69","11","K4ERO",59,"Nov 69"
1.3,"Computer-aided design of long VHF Yagi antennas","86","05","VK4ZF",28,"May 86"
1.3,"Converting low-band mobile antenna to 144-MHz (HN)","77","05","K7ARR",90,"May 77"
1.3,"Corner reflector antenna, 432 M Hz","71","11","WA2FSQ",24,"Nov 71"
1.3,"Cubical quad, economy six-meter","69","04","W6DOR",50,"Apr 69"
1.3,"Cylindrical feedhorns revisited","86","02","WA9HUV",29,"Feb 86"
1.3,"Dual quad array for two meters","80","05","W7SLO",30,"May 80"
1.3,"Efficient matching","83","09","VE7BS",83,"Sep 83"
1.3,"Efficiently launch-VHF/UHF wave","88","10","W3HWC",63,"Oct 88"
1.3,"Fastening Trigon reflectors to VHF antennas (HN)","84","09","W5JTL",88,"Sep 84"
1.3,"Feed horn, cylindrical, for parabolic reflectors","76","05","WA9HUV",16,"May 76"
1.3,"Folded whip antenna for vhf mobile - Weekender","79","04","WB2IFV",50,"Apr 79"
1.3,"Ground plane, 2-meter, 0.7 wavelength","69","03","W3WZA",40,"Mar 69"
1.3,"Ground plane, portable vhf (HN)","73","05","K9DHD",71,"May 73"
1.3,"Ham notebook: a 2-meter halo antenna","87","05","NR5A",63,"May 87"
1.3,"Ham radio techniques","81","09","W6SAI",32,"Sep 81"
1.3,"Ham Radio Techniques: the Yagi optimizer","90","04","W6SAI",68,"Apr 90"
1.3,"Handi-antennas","83","05","AA6PZ",42,"May 83"
1.3,"Helical antenna matching","88","05","Belliveau, John",73,"May 88"
1.3,"High-performance Yagis for 432 MHz","87","07","K1FO",8,"Jul 87"
1.3,"High-performance Yagis for 432 MHz","87","09","Comments, KLM balun",6,"Sep 87"
1.3,"High-performance Yagis for 432 MHz","87","10","Short circuit",97,"Oct 87"
1.3,"Improved High-Performance Yagis for 432 MHz","89","05","K1FO",9,"May 89"
1.3,"Inexpensive five-eighth wave groundplane (HN)","81","03","W7CD",84,"Mar 81"
1.3,"Inexpensive half-wave 2-meter mobile antenna","90","02","WE7C",32,"Feb 90"
1.3,"J-pole antenna for 6-meters","68","08","K4SDY",48,"Aug 68"
1.3,"Log-periodic, yagi beam","69","07","K6RIL, W6SAI",8,"Jul 69"
1.3,"Log-periodic, yagi beam","70","02","Correction",68,"Feb 70"
1.3,"Long 2-meter collinears - a simple way to achieve gain (HN)","86","05","WB3AYW",95,"May 86"
1.3,"Magnet-mount antenna, portable (HN)","76","05","WB2YYU",67,"May 76"
1.3,"Magnetic mount for mobile antennas","78","11","W0HK",52,"Nov 78"
1.3,"Matching 432-MHz helical antennas","83","03","W8NWU",44,"Mar 83"
1.3,"Matching techniques for vhfiuhf antennas","76","07","W1JAA",50,"Jul 76"
1.3,"Microwave antenna, homebrew","82","09","WB0VGI, Johnson",68,"Sep 82"
1.3,"Microwave antenna, Low-cost","69","11","K6HIJ",52,"Nov 69"
1.3,"Microwave-antenna designers, challenge for","80","08","W6FOO",44,"Aug 80"
1.3,"Mobile antenna, magnet-mount","75","09","W1HCI",54,"Sep 75"
1.3,"Mobile antenna, six-meter (HN)","70","10","W4PSJ",77,"Oct 70"
1.3,"Mobile antennas, vhf, comparison of","77","05","W4MNW",52,"May 77"
1.3,"Moonbounce antenna, practical 144-MHz","70","05","K6HCP",52,"May 70"
1.3,"Multiband J antenna","78","07","WB6JPI",74,"Jul 78"
1.3,"Oscar antenna, mobile (HN)","76","05","W6OAL",67,"May 76"
1.3,"Oscar az-el antenna system","78","05","WA1NXP",70,"May 78"
1.3,"Parabolic reflector antennas","74","05","VK3ATN",12,"May 74"
1.3,"Parabolic reflector element spacing","75","05","WA9HUV",28,"May 75"
1.3,"Parabolic reflector gain","75","07","W2TQK",50,"Jul 75"
1.3,"Parabolic reflector, 16-foot homebrew","69","08","WB6IOM",8,"Aug 69"
1.3,"Parabolic reflectors, finding the focal length (HN)","74","03","WA4WDL",57,"Mar 74"
1.3,"Quad-yagi arrays, 432- and 1296-MHz","73","05","W3AED",20,"May 73"
1.3,"Quad-yagi arrays, 432- and 1296-MHz","73","12","Short circuit",58,"Dec 73"
1.3,"Re-entrant cavity antenna for the VHF bands","81","05","W4FXE",12,"May 81"
1.3,"Repeater antenna beam tilting","83","05","K7NM",29,"May 83"
1.3,"Repeater antenna beam tilting","83","07","Short circuit",80,"Jul 83"
1.3,"Simple antennas, 144-MHz","73","05","WA3NFW",30,"May 73"
1.3,"Switch, antenna for 2 meters, solid-state","69","05","K2ZSQ",48,"May 69"
1.3,"True north, how to determine for antenna orientation","80","10","K4DE",38,"Oct 80"
1.3,"True north, how to determine for antenna orientation","81","03","Comments, N6XQ, K4DE",7,"Mar 81"
1.3,"TV to 2-meter antenna conversion (Weekender)","90","01","N4FQO",23,"Jan 90"
1.3,"Two-meter antenna, simple (HN)","68","08","W6BLZ",78,"Aug 68"
1.3,"Two-meter fm antenna (HN)","71","05","WB6KYE",64,"May 71"
1.3,"Two-meter mobile antennas","68","05","W6BLZ",76,"May 68"
1.3,"Using a 2-meter quarter-wave whip on 450 MHz (HN)","81","05","K1ZJH",92,"May 81"
1.3,"Vertical antennas, truth about 5/8-wavelength","74","05","K0DOK",48,"May 74"
1.3,"Vertical antennas, truth about 5/8-wavelength","75","01","Added note (letter)",54,"Jan 75"
1.3,"VHF antenna null, achieving the perfect","83","05","K3ED",48,"May 83"
1.3,"Vhf antenna switching without relays (HN)","68","09","K2ZSQ",76,"Sep 68"
1.3,"VHF Yagi CAD on the C-64","86","09","W4PFZ",70,"Sep 86"
1.3,"VHF/UHF Antennas","89","07","NH6N",84,"Jul 89"
1.3,"VHF/UHF world","84","05","W1JR",110,"May 84"
1.3,"VHF/UHF world","85","12","W1JR",85,"Dec 85"
1.3,"VHF/UHF world: Designing and building loop Yagis","86","01","Short circuit",54,"Jan 86"
1.3,"VHF/UHF world: Designing and building loop Yagis","86","09","W1JR",56,"Sep 86"
1.3,"VHF/UHF world: minimum requirements for 2-meter EME - part1","87","08","W1JR",39,"Aug 87"
1.3,"VHF/UHF world: optimized 2- and 6-meter Yagis","87","05","W1JR",92,"May 87"
1.3,"VHF/UHF world: optimized 2- and 6-meter Yagis","87","07","Short circuit",49,"Jul 87"
1.3,"VHF/UHF world: optimized 2- and 6-meter Yagis","87","08","Short circuit",41,"Aug 87"
1.3,"VHF/UHF world: stacking antennas, part1","85","04","W1JR",129,"Apr 85"
1.3,"VHF/UHF world: stacking antennas, part2","85","05","W1JR",95,"May 85"
1.3,"VHF/UHF world: Yagi facts and fallacies","86","05","W1JR",103,"May 86"
1.3,"Whip, 5/8-wave, 144-MHz (HN)","73","04","VE3DDD",70,"Apr 73"
1.3,"Yagi antennas, how to design","77","08","W1JR",22,"Aug 77"
1.3,"Yagi triangular array","87","05","W2IKP",42,"May 87"
1.3,"Yagi trigon reflector, Optimizing","86","01","WB3BGU",84,"Jan 86"
1.3,"Yagi uhf antenna simplified (HN)","79","11","WA3CPH",74,"Nov 79"
1.3,"Yagi, 1296-MHz","72","05","W2CQH",24,"May 72"
1.3,"Yagi, a high-gain 70-cm","86","12","W1JR",75,"Dec 86"
1.3,"Yagi, a high-gain 70-cm","87","02","Short circuit",68,"Feb 87"
1.3,"Yagis, stacking is a science","85","05","K1FO",18,"May 85"
1.4,"Active antenna coupler for VLF","79","10","Burhans, Ralph W.",46,"Oct 79"
1.4,"Antenna bridge calculations","78","05","Anderson, Leonard H.",34,"May 78"
1.4,"Antenna bridge calculations","81","03","K6GK",85,"Mar 81"
1.4,"Antenna bridge calculations","81","11","Short circuit",84,"Nov 81"
1.4,"Antenna bridge calculations (letter)","78","08","W5QJR",6,"Aug 78"
1.4,"Antenna coupler for three-band beams","72","05","ZS6BT",42,"May 72"
1.4,"Antenna coupler, six-meter","74","07","K1RAK",44,"Jul 74"
1.4,"Antenna impedance transformer for receivers (HN)","70","01","W6NIF",70,"Jan 70"
1.4,"Antenna instrumentation, simple, (repair bench)","77","07","K4IPV",71,"Jul 77"
1.4,"Antenna match, quick and simple","81","01","Anderson, Leonard H.",58,"Jan 81"
1.4,"Antenna match, quick and simple","82","02","Short circuit",70,"Feb 82"
1.4,"Antenna matcher, one-man","71","06","W4SD",24,"Jun 71"
1.4,"Antenna matching, easy","84","05","WB4GCS",67,"May 84"
1.4,"Antenna tuner (HN)","83","05","W6XM",94,"May 83"
1.4,"Antenna tuner adjustment (HN)","75","12","WA4MTH",53,"Dec 75"
1.4,"Antenna tuner for optimum power transfer","70","05","W2WLR",28,"May 70"
1.4,"Antenna tuner with a new twist (Weekender)","90","06","W7CSD",59,"Jun 90"
1.4,"Antenna tuner, automatic","72","11","WA0AQC",36,"Nov 72"
1.4,"Antenna tuner, medium-power toroidal","74","01","WB2ZSH",58,"Jan 74"
1.4,"Antenna tuners","72","12","W3FQJ",58,"Dec 72"
1.4,"Antenna tuners (ham radio techniques)","81","07","W6SAI",30,"Jul 81"
1.4,"Antenna tuning units","73","01","W3FQJ",58,"Jan 73"
1.4,"Balun design, another","82","05","W6HPH",54,"May 82"
1.4,"Balun, adjustable for yagi antennas","71","05","W6SAI",14,"May 71"
1.4,"Balun, coreless","81","05","WA2SON",62,"May 81"
1.4,"Balun, simplified (HN)","69","10","WA0KKC",73,"Oct 69"
1.4,"Baluns, wideband bridge","68","12","W6SAI, WA6BAN",28,"Dec 68"
1.4,"Broadband Antenna Baluns","68","06","W6SAI",6,"Jun 68"
1.4,"Broadband balun, high performance","80","02","K4KJ",28,"Feb 80"
1.4,"Broadband balun, simple and efficient","78","09","W1JR",12,"Sep 78"
1.4,"Broadband reflectometer and power meter","79","05","VK2ZTB, VK2ZZQ",28,"May 79"
1.4,"Broadband RF transformers","86","01","K2LB",75,"Jan 86"
1.4,"Capacitively coupled hybrids","83","03","WA2EWT",70,"Mar 83"
1.4,"Coaxial-line transformers, a new class of","80","02","W6TC",12,"Feb 80"
1.4,"Coaxial-line transformers, a new class of","80","03","Short circuit",70,"Mar 80"
1.4,"Coaxial-line transformers, a new class of","80","09","Short circuit",67,"Sep 80"
1.4,"Couplers, random-length antenna","70","01","W2EEY",32,"Jan 70"
1.4,"Designing trap antennas: a new approach","87","08","W0JF",60,"Aug 87"
1.4,"Dummy loads","76","03","W4MB",40,"Mar 76"
1.4,"Efficient matching","83","09","VE7BS",83,"Sep 83"
1.4,"Elmer's notebook: antenna tuner","88","05","W1SL",102,"May 88"
1.4,"Elmer's notebook:antenna tuner","88","04","W1SL",83,"Apr 88"
1.4,"Feeding and matching techniques for vhf/uhf antennas","76","05","W1JAA",54,"May 76"
1.4,"Gamma matching programs for the C-64/128","87","05","N0CAO",87,"May 87"
1.4,"Gamma matching, basic","85","01","WB0IKN",29,"Jan 85"
1.4,"Gamma-match capacitor, remotely controlled","75","05","K2BT",74,"May 75"
1.4,"Gamma-matching networks, how to design","73","05","W7ITB",46,"May 73"
1.4,"Half-wave balun: theory and application","80","09","K4KJ",32,"Sep 80"
1.4,"Ham radio techniques","81","10","W6SAI",42,"Oct 81"
1.4,"Ham radio techniques","84","01","W6SAI",65,"Jan 84"
1.4,"Ham radio techniques","84","02","W6SAI",63,"Feb 84"
1.4,"Ham radio techniques","84","05","Comments, K4KYV (Feb 84)",12,"May 84"
1.4,"Ham radio techniques","84","09","Comments, WA2DRL (Jan 84)",8,"Sep 84"
1.4,"Ham radio techniques","84","09","Comments, WD6DUD (Feb 84)",8,"Sep 84"
1.4,"Ham radio techniques","84","12","Comments, AD1G (Feb 84)",8,"Dec 84"
1.4,"Ham Radio techniques: "radio ground" on 160 meters","88","03","W6SAI",53,"Mar 88"
1.4,"Ham radio techniques: Antenna Matching Systems","89","11","W6SAI",54,"Nov 89"
1.4,"Ham Radio Techniques: Interesting Antenna Fed Systems","89","10","W6SAI",39,"Oct 89"
1.4,"Ham Radio Techniques: The Gamma Match An Update","89","08","W6SAI",56,"Aug 89"
1.4,"Helical antenna matching","83","05","Belliveau, John",73,"May 83"
1.4,"HF hybrid descriptions","83","10","W5TRS",80,"Oct 83"
1.4,"High-frequency mobile antenna matcher, simple","81","06","W6BCX",28,"Jun 81"
1.4,"Hybrid ring","83","08","WA2EWT",50,"Aug 83"
1.4,"Impedance bridge, low-cost RX","73","05","W8YFB",6,"May 73"
1.4,"Impedance matching","83","07","WB2NTQ",85,"Jul 83"
1.4,"Impedance matching","83","11","Comment, K0CQ",95,"Nov 83"
1.4,"Impedance Matching Transformers and Ladder Line","89","05","KZ3K",49,"May 89"
1.4,"Impedance-matching baluns, open-wire","73","11","W6MUR",46,"Nov 73"
1.4,"Impedance-matching systems, designing","73","07","W7CSD",58,"Jul 73"
1.4,"Improving operation with the MFJ 989 transmatch (Weekender)","88","11","W4RNL",24,"Nov 88"
1.4,"Johnson Matchbox, improved","79","07","K4IHV",45,"Jul 79"
1.4,"Johnson Matchbox, improved","79","09","Short circuit",92,"Sep 79"
1.4,"L-Match, A Useful Tool for Improving Your SWR","89","02","W3VT",29,"Feb 89"
1.4,"L-Matching network, appreciating the","80","09","WA2EWT",27,"Sep 80"
1.4,"Loads, affect of mismatched transmitter","69","09","W5JJ",60,"Sep 69"
1.4,"Low swr, how important?","81","08","W1GV/4",33,"Aug 81"
1.4,"Low swr, how important?","81","12","Comments, K1KSY, W1GV/4",6,"Dec 81"
1.4,"Lowpass antenna matching unit, inductance-tuned","82","05","W0YBF",24,"May 82"
1.4,"Macromatcher: increasing versatility","80","06","K9DCJ",68,"Jun 80"
1.4,"Matching 432-MHz helical antennas","83","03","W8NWU",44,"Mar 83"
1.4,"Matching complex antenna loads to coaxial transmission lines","79","05","WB7AUL",52,"May 79"
1.4,"Matching dipole antennas","84","05","W1OLP",129,"May 84"
1.4,"Matching dipole antennas","85","04","Comments, W5XW",12,"Apr 85"
1.4,"Matching sections","82","03","KL7HIT",68,"Mar 82"
1.4,"Matching system, two-capacitor","73","09","W6MUR",58,"Sep 73"
1.4,"Matching transformers, multiple quarter-wave","78","11","K3BY",44,"Nov 78"
1.4,"Matching, antenna, two-band with stubs","73","10","W6MUR",18,"Oct 73"
1.4,"Measuring complex impedance with swr bridge","75","05","WB4KSS",46,"May 75"
1.4,"Mobile transmitter, loading","72","05","W4YB",46,"May 72"
1.4,"Noise bridge calculations with TI 58/59 calculators","78","05","WD4GRI",45,"May 78"
1.4,"Noise bridge construction (letter)","78","09","OH2ZAZ",8,"Sep 78"
1.4,"Noise bridge for impedance measurements","73","01","YA1GJM",62,"Jan 73"
1.4,"Noise bridge for impedance measurements","74","05","Added notes",66,"May 74"
1.4,"Noise bridge for impedance measurements","75","03","Added notes",60,"Mar 75"
1.4,"Noise bridge for impedance measurements","79","05","Comments, W6BXI",6,"May 79"
1.4,"Noise bridge, antenna","70","12","WB2EGZ",18,"Dec 70"
1.4,"Noise bridge, antenna (HN)","74","05","K8EEG",71,"May 74"
1.4,"Omega-matching networks, design of","78","05","W7ITB",54,"May 78"
1.4,"Optimum pi-network design","80","09","DL9LX",50,"Sep 80"
1.4,"Phase meter, rf","73","04","VE2AYU, Korth",28,"Apr 73"
1.4,"Phased arrays, feeding: an alternative method","85","05","KB8I",58,"May 85"
1.4,"Phased arrays, feeding: an alternative method","85","07","Short circuit",74,"Jul 85"
1.4,"Phasometer (Weekender)","90","06","K9MLD, K9PIQ",28,"Jun 90"
1.4,"Pi network equations","88","10","K4MT",109,"Oct 88"
1.4,"Practically speaking: impedance matching","88","08","K4IPV",27,"Aug 88"
1.4,"Practically Speaking: Parts for Antenna Tuners and Linears .. Plus a Correction","89","01","K4IPV",83,"Jan 89"
1.4,"Quadrifilar toroid (HN)","75","12","W9LL",52,"Dec 75"
1.4,"Remote tuner for 75-meter mobiles (weekender)","88","10","K9MLD",36,"Oct 88"
1.4,"RF current loop (HN)","90","03","K9PIQ",42,"Mar 90"
1.4,"RX noise bridge, improvements to","77","02","W6BXI, W6NKU",10,"Feb 77"
1.4,"RX noise bridge, improvements to","77","09","Comments",100,"Sep 77"
1.4,"Simple 75-ohm Hardline to 50-ohm Match","89","06","K9EYY",63,"Jun 89"
1.4,"Stub-switched, stub-matched antennas","69","01","W2EEY",34,"Jan 69"
1.4,"Swr alarm circuits","70","04","W2EEY",73,"Apr 70"
1.4,"Swr bridge","71","10","WB2ZSH",55,"Oct 71"
1.4,"Swr bridge and power meter, integrated","70","05","W6DOB",40,"May 70"
1.4,"Swr bridge readings (HN)","73","08","W6FPO",63,"Aug 73"
1.4,"Swr indicator, aural, for the visually handicapped","76","05","K6HTM",52,"May 76"
1.4,"Swr meter","70","10","W6VSV",6,"Oct 70"
1.4,"Swr meter","78","11","WB6AFT",68,"Nov 78"
1.4,"Swr meter for the high-frequency bands","81","10","WB6AFT",62,"Oct 81"
1.4,"Swr meter, how accurate? (HN)","81","01","WB9TQG",78,"Jan 81"
1.4,"Swr meter, improving (HN)","76","05","W5NPD",68,"May 76"
1.4,"Swr, what is your?","79","11","N4OE",68,"Nov 79"
1.4,"T-Network impedance matching to coaxial feedlines","78","09","W6EBY",22,"Sep 78"
1.4,"Tandem pi networks","82","07","W6MUR",32,"Jul 82"
1.4,"Testing baluns","83","08","K4KJ",30,"Aug 83"
1.4,"The series section transformer","90","06","W7XC",55,"Jun 90"
1.4,"Transformers, coaxial-line","80","03","W6TC",18,"Mar 80"
1.4,"Transmatch, five-to-one","74","05","W7IV",54,"May 74"
1.4,"Transmission lines, grid dipping (HN)","71","02","W2OLU",72,"Feb 71"
1.4,"Transmission lines, uhf","71","05","WA2VTR",36,"May 71"
1.4,"Uhf coax connectors (HN)","72","09","W0LCP",70,"Sep 72"
1.4,"Updating the Viking MB-VA antenna tuner (HN)","90","03","VE7GWO",43,"Mar 90"
1.4,"VHF/UHF Antennas","89","07","NH6N",84,"Jul 89"
1.5,"Antenna and rotator preventive maintenance","69","01","WA1ABP",66,"Jan 69"
1.5,"Antenna and tower restrictions","76","01","W7IV",24,"Jan 76"
1.5,"Antenna carriage and track pole mount","83","08","KB3K",46,"Aug 83"
1.5,"Antenna guys and structural solutions","78","06","W6RTK",33,"Jun 78"
1.5,"Antenna hinge","83","08","N4LI",70,"Aug 83"
1.5,"Antenna mast, build your own tilt-over","70","02","W6KRT",42,"Feb 70"
1.5,"Antenna mast, build your own tilt-over","70","09","Correction",76,"Sep 70"
1.5,"Antenna position display","79","02","AE4A",18,"Feb 79"
1.5,"Antenna tower, fixed, tilt-over conversion","85","05","PA0SE",125,"May 85"
1.5,"Armstrong beam rotator","82","02","KP4DM",68,"Feb 82"
1.5,"Automatic Rotor Brake Delay, The Weekender:","89","08","WA1SPI",89,"Aug 89"
1.5,"AUTOTRAK, A simple rotor interface board for the C-64, VIC-20, etc","87","12","K7NH",10,"Dec 87"
1.5,"Az-el antenna mount for satellite communications","75","03","W2LX",34,"Mar 75"
1.5,"CDE tailtwister rotor, pulse-position control of","81","01","WB4EXW",30,"Jan 81"
1.5,"Cornell-Dubilier rotators (HN)","75","05","K6KA",82,"May 75"
1.5,"Ham Notebook: Crank-up Tower Cable Guides","89","02","A Bachelor",54,"Feb 89"
1.5,"Ham notebook: simple tower guards","88","09","K1ZJH",39,"Sep 88"
1.5,"Ham-M modifications (HN)","76","05","W2TQK",72,"May 76"
1.5,"Ham-M rotator automatic position control","77","05","WB6GNM",42,"May 77"
1.5,"Ham-M rotator control box, modification of (HN)","80","11","K4DLA/W1RDR",68,"Nov 80"
1.5,"Keep your tower up","84","06","KB9IW",26,"Jun 84"
1.5,"Keeping your beam, tips for","68","08","W6BLZ",50,"Aug 68"
1.5,"KLM antenna rotor, computer control for (HN)","81","02","W8MQW",66,"Feb 81"
1.5,"Match your antenna to your tower","84","06","WD0DGF",14,"Jun 84"
1.5,"Pipe antenna masts, design data for","74","09","W3MR",52,"Sep 74"
1.5,"Pipe antenna masts, design data for","75","05","Added design notes (letter)",75,"May 75"
1.5,"Rotator for medium-sized beams","76","05","K2BT",48,"May 76"
1.5,"Rotator starting capacitors (letter)","79","09","W6WX",92,"Sep 79"
1.5,"Rotator starting capacitors (letter)","80","03","Short circuit",70,"Mar 80"
1.5,"Rotator, AR-22, fixing a sticky","71","06","WA1ABP",34,"Jun 71"
1.5,"Rotator, T-45, Improvement (HN)","71","09","WA0VAM",64,"Sep 71"
1.5,"Stress analysis of antenna systems","71","10","W2FZJ",23,"Oct 71"
1.5,"Telescoping tv masts (HN)","73","02","WA0KKC",57,"Feb 73"
1.5,"Tilt-over tower uses extension ladder","75","05","W5TRS",71,"May 75"
1.5,"Tiltover tower base, low-cost","68","04","WA1ABP",86,"Apr 68"
1.5,"Tower guying (HN)","77","11","K9MM",98,"Nov 77"
1.5,"Tower installation: make it sturdy, make it safe","84","06","WB5IIR",22,"Jun 84"
1.5,"Tower, homemade tilt-over","71","05","WA3EWH",28,"May 71"
1.5,"Tower, wind-protected crank-up","69","10","HN",74,"Oct 69"
1.5,"Towers and rotators","76","05","K6KA",34,"May 76"
1.5,"Turning that big array","86","06","VE3AIA",10,"Jun 86"
1.5,"UHF antenna tower, low-cost","84","10","KA6GVY",30,"Oct 84"
1.5,"Wind loading on towers and antenna structures, how to calculate","74","08","K4KJ",16,"Aug 74"
1.5,"Wind loading on towers and antenna structures, how to calculate","75","07","Added note",56,"Jul 75"
1.6,"75-ohm CATV cable in amateur installations","78","09","W7VK",28,"Sep 78"
1.6,"75-ohm CATV hardline matching to 50-ohm systems","78","09","K1XX",31,"Sep 78"
1.6,"Antenna-transmission line analog, part 1","77","04","W6UYH",52,"Apr 77"
1.6,"Antenna-transmission line analog, part 2","77","05","W6UYH",29,"May 77"
1.6,"Antiflex coaxial cable connection (HN)","82","05","W4KV",42,"May 82"
1.6,"Artificial Transmission lines","86","07","KA8OBL",21,"Jul 86"
1.6,"Balun, coaxial","77","05","WA0RDX",26,"May 77"
1.6,"Bridge measurements, the half-wave transmission line in (HN)","84","11","K4KI",108,"Nov 84"
1.6,"Cheapie coax (letter)","82","05","WB4AHZ",8,"May 82"
1.6,"Coax cable dehumidifier","73","09","K4RJ",26,"Sep 73"
1.6,"Coax cable, repairing water damage (HN)","79","12","W5XW",73,"Dec 79"
1.6,"Coax cable, salvaging water-damaged (HN)","80","01","W5XW",88,"Jan 80"
1.6,"Coax connectors, repairing broken (HN)","70","06","W0HKF",66,"Jun 70"
1.6,"Coax, Low-cost (HN)","69","10","K6BIJ",74,"Oct 69"
1.6,"Coax, measuring with an RCL bridge (HN)","82","10","WB9TQG",78,"Oct 82"
1.6,"Coaxial cable (C&T)","76","06","W1DTY",50,"Jun 76"
1.6,"Coaxial cable connectors (HN)","69","03","WA1ABP",71,"Mar 69"
1.6,"Coaxial cable connectors, homebrew hardline-to-uhf","80","04","K2YOF",32,"Apr 80"
1.6,"Coaxial cable supports (HN)","68","06","W2GA",56,"Jun 68"
1.6,"Coaxial cable, checking (letter)","71","05","W2OLU",68,"May 71"
1.6,"Coaxial cable, what you know about","68","09","W9ISB",30,"Sep 68"
1.6,"Coaxial cable, what you need to know about","68","09","W9ISB",30,"Sep 68"
1.6,"Coaxial connectors can generate rfi","76","06","W1DTY",48,"Jun 76"
1.6,"Coaxial connectors, sealing, (HN)","80","03","W5WX",64,"Mar 80"
1.6,"Coaxial connectors, sealing, (HN)","80","10","Letter, K7ZFG",6,"Oct 80"
1.6,"Coaxial feedthrough panel (HN)","69","04","W3URE",70,"Apr 69"
1.6,"Coaxial transmission lines, underground","70","05","W0FCH",38,"May 70"
1.6,"Coaxial-cable fittings, type-F","71","05","K2MDO",44,"May 71"
1.6,"Coaxial-line loss, measuring with reflectometer","72","05","W2VCI",50,"May 72"
1.6,"Coaxial-line transformers, a new class of","80","02","W6TC",12,"Feb 80"
1.6,"Coaxial-line transformers, a new class of","80","03","Short circuit",70,"Mar 80"
1.6,"Coaxial-line transformers, a new class of","80","09","Short circuit",67,"Sep 80"
1.6,"Connectors for CATV coax cable","79","10","W1IIM",52,"Oct 79"
1.6,"Copper pipe transmission lines","90","01","WA2EWT, WA4BUS",34,"Jan 90"
1.6,"Elmer's notebook: transmission lines","88","03","W1SL",90,"Mar 88"
1.6,"General purpose line transformers","86","08","W6IOJ",94,"Aug 86"
1.6,"Ham radio techniques, fifty years ago","84","06","W6SAI",58,"Jun 84"
1.6,"Ham Radio Techniques: A Balun for 10 Meters","89","01","W6SAI",103,"Jan 89"
1.6,"Ham Radio Techniques: Coax Revisited","89","06","W6SAI",21,"Jun 89"
1.6,"Hardline connectors, inexpensive","83","05","WB4GCS",62,"May 83"
1.6,"Hardline connectors, inexpensive","83","11","Comments, KM1H",8,"Nov 83"
1.6,"Hardline, matching 75 to 50-ohm","82","10","W4VRV",43,"Oct 82"
1.6,"Hybrid coupler","82","06","W1OOP",36,"Jun 82"
1.6,"Impedance Matching Transformers and Ladder Line","89","05","KZ3K",49,"May 89"
1.6,"Impedance transformer, non-synchronous (HN)","75","09","W5TRS",66,"Sep 75"
1.6,"Impedance transformer, non-synchronous (HN)","76","05","Comments, W3DVO",63,"May 76"
1.6,"Matching 75-ohm CATV hardline to 50-ohm system","78","09","K1XX",31,"Sep 78"
1.6,"Matching transformers, multiple quarter-wave","78","11","K3BY",44,"Nov 78"
1.6,"Measuring coax cable loss with an swr meter","81","05","W89TOG",35,"May 81"
1.6,"Measuring coax cable loss with an swr meter","81","09","Comments, WD4KMP, WB9TQG",6,"Sep 81"
1.6,"Measuring coax cable loss with an swr meter","82","02","Comments, W4PPB",8,"Feb 82"
1.6,"Measuring transmission line parameters","88","09","OE2APM/AA3K",22,"Sep 88"
1.6,"Novel Method for Measuring Cable Attenuation","89","05","OE2APM",65,"May 89"
1.6,"Open-wire feedthrough insulator (HN)","75","05","W4RNL",79,"May 75"
1.6,"Open-wire line for 2 meters","87","01","N4UH",94,"Jan 87"
1.6,"Pi, pi-L, and tandem quarter-wave line matching networks, response of","82","02","W6MUR",12,"Feb 82"
1.6,"PL-259 connectors, attaching to RG-58/U cable (HN)","82","01","W5BVF",81,"Jan 82"
1.6,"Plumber's delight coax connector (weekender)","81","05","N4LI",50,"May 81"
1.6,"Practically speaking: amplifier tuning problem","86","11","K4IPV",78,"Nov 86"
1.6,"Practically speaking: standing waves- a review","88","10","K4IPV",85,"Oct 88"
1.6,"Practically speaking: transmission lines and their typical AC responses","88","09","K4IPV",34,"Sep 88"
1.6,"Real coax: impedance and phase relationships","87","04","K2BT",8,"Apr 87"
1.6,"Real coax: impedance and phase relationships","87","07","Short circuit",91,"Jul 87"
1.6,"Remote switching multiband antennas","77","05","G3LTZ",68,"May 77"
1.6,"Rf power divider (HN)","82","02","W5TRS",80,"Feb 82"
1.6,"RF transmission cable, microwave applications","85","05","K3HW",106,"May 85"
1.6,"Single feedline for multiple antennas","71","05","K2ISP",58,"May 71"
1.6,"Solenoid rotary switches","68","04","W2EEY",36,"Apr 68"
1.6,"Solving transmission line problems on your Commodore 64","86","05","K9CZB",74,"May 86"
1.6,"Solving transmission line problems on your Commodore 64","86","07","Short circuit",87,"Jul 86"
1.6,"T coupler, the (HN)","80","11","K3NXU",68,"Nov 80"
1.6,"Time domain reflectometer","83","11","VE3EFC",49,"Nov 83"
1.6,"Time-domain reflectometry, checking transmission lines with","80","07","K7CG",32,"Jul 80"
1.6,"Transformers, coaxial-line","80","03","W6TC",18,"Mar 80"
1.6,"Transmission line calculations using your pocket calculator for","76","11","W5TRS",40,"Nov 76"
1.6,"Transmission lines, long, for optimum antenna location","80","10","N4UH",12,"Oct 80"
1.6,"Transmission-line circuit design for 50 MHz and above","80","11","W6GGV",38,"Nov 80"
1.6,"Transmission-line design, Pt. 2: distributed resonant circuits in uhf/vhf lines","81","01","W6GGV",62,"Jan 81"
1.6,"Transmission-line design, Pt. 3: distributed resonant circuits in vhf/uhf lines","81","02","W6GGV",56,"Feb 81"
1.6,"Transmission-line design, Pt. 4: distributed resonant circuits In vhf/uhf lines","81","03","W6GGV",64,"Mar 81"
1.6,"Transmission-line design, Pt. 5: 50 MHz and above","81","04","W6GGV",72,"Apr 81"
1.6,"Transmit/receive switch, solid-state vhf-uhf","78","02","W4NHH",54,"Feb 78"
1.6,"Tuner, receiver (HN)","69","03","WA7KRE",72,"Mar 69"
1.6,"Tuner, wall-to-wall antenna (HN)","70","12","W2OUX",56,"Dec 70"
1.6,"Uhf microstrip swr bridge","72","12","W4CGC",22,"Dec 72"
1.6,"VHF/UHF world","85","12","W1JR",85,"Dec 85"
1.6,"VHF/UHF world: transmission lines","85","10","W1JR",83,"Oct 85"
1.6,"VHF/UHF world: transmission lines","86","04","Comments W9ICZ",9,"Apr 86"
1.6,"VSWR indicator, computing","77","01","WB9CYY",58,"Jan 77"
1.6,"VSWR indicator, computing","77","05","Short circuit",94,"May 77"
1.6,"Zip-cord feedlines (HN)","78","04","W7RXV",32,"Apr 78"
1.6,"Zip-cord feedlines (letter)","78","10","WB6BHI",6,"Oct 78"
2,"75-Hz wide audio filter","90","01","W2OBJ",14,"Jan 90"
2,"A deep notch resonant filter","90","02","W0THM",63,"Feb 90"
2,"Active filters","78","02","K6JM",70,"Feb 78"
2,"Add-on selectivity for communications receivers","81","11","G4GMO",41,"Nov 81"
2,"Advanced CW processor","86","12","W6NRW",25,"Dec 86"
2,"An improved AGC Circuit","89","09","W8WFH",72,"Sep 89"
2,"Audio agc principles and practice","71","06","WA5SNZ",28,"Jun 71"
2,"Audio amplifier and squelch circuit","68","08","W6AJF",36,"Aug 68"
2,"Audio CW filter","71","11","W7D1",54,"Nov 71"
2,"Audio filter building blocks","83","07","KB0CY",74,"Jul 83"
2,"Audio filter design, computer-aided","85","10","KE2J",15,"Oct 85"
2,"Audio filter design, elliptic lowpass","84","02","W3NQN",20,"Feb 84"
2,"Audio filter, tunable, for weak-signal communications","75","11","K6HCP",28,"Nov 75"
2,"Audio filters, aligning (HN)","72","08","W4ATE",72,"Aug 72"
2,"Audio filters, inexpensive","72","08","W8YFB",24,"Aug 72"
2,"Audio fitter mod (HN)","72","01","K6HIL",60,"Jan 72"
2,"Audio mixer (HN)","76","11","W6KNE",66,"Nov 76"
2,"Audio module, a complete","73","06","K4DHC",18,"Jun 73"
2,"Audio oscillator to pulse generator conversion (HN)","84","10","W0DLO",50,"Oct 84"
2,"Audio processor, communications for reception","80","01","W6NRW",71,"Jan 80"
2,"Audio response, tailoring (HN)","82","05","N1FB",42,"May 82"
2,"Audio to microwave amplifier, build your own","84","03","Gruchalla, Michael",12,"Mar 84"
2,"Audio transducer (HN)","75","07","WA1OPN",59,"Jul 75"
2,"Audio-oscillator module, Cordover","71","03","WB2GQY",44,"Mar 71"
2,"Audio-oscillator module, Cordover","71","12","Correction",80,"Dec 71"
2,"Audio-power integrated circuits","76","01","W3FQJ",64,"Jan 76"
2,"Aural vco provides relative metering","87","01","K1ZJH",97,"Jan 87"
2,"Automatic gain control, an audio","84","09","K7NM",24,"Sep 84"
2,"Better audio for mobile operation","81","02","K6GCO",48,"Feb 81"
2,"Binaural CW reception, synthesizer for","75","11","W6NRW",46,"Nov 75"
2,"Binaural CW reception, synthesizer for","77","02","Comment",77,"Feb 77"
2,"Build a QSO "beeper"","88","01","KF6CU",38,"Jan 88"
2,"Code practice oscillator (weekender)","88","10","N2DCH",65,"Oct 88"
2,"Compressor, dual channel","68","07","W2EEY",40,"Jul 68"
2,"Converting mobile microphones for handheld VHF transceivers","86","03","KD8KZ, WB3JCC",79,"Mar 86"
2,"CW acoustical filter","83","01","W7BI",22,"Jan 83"
2,"CW and RTTY, digital audio filter for","83","08","W1OER",60,"Aug 83"
2,"CW and RTTY, digital audio filter for","84","08","Short circuit",199,"Aug 84"
2,"Distortion and splatter","70","12","K5LLI",44,"Dec 70"
2,"Duplex audio-frequency generator with AFSK features","79","09","WB6AFT",66,"Sep 79"
2,"Dynamic microphones (C&T)","76","06","W1DTY",46,"Jun 76"
2,"Extended-range VU meter","86","09","WB6JNN",59,"Sep 86"
2,"Filter for CW, tunable audio","70","08","WA1JSM",34,"Aug 70"
2,"Filter, lowpass audio, simple","74","01","OD5CG",54,"Jan 74"
2,"Filter, simple audio","70","10","W4NVK",44,"Oct 70"
2,"Filter, tunable peak-notch audio","70","03","W2EEY",22,"Mar 70"
2,"Filter, variable bandpass audio","70","04","W3AEX",36,"Apr 70"
2,"Filter-frequency translator for CW reception, Integrated audio","70","06","W2EEY",24,"Jun 70"
2,"Gain control IC for audio signal processing","77","07","Jung",47,"Jul 77"
2,"Ham Notebook: Mobile HT Audio, The Near Ultimate Solution","89","08","W9PXP",68,"Aug 89"
2,"Handheld transceiver, audio amplifier for","81","07","N1RM",38,"Jul 81"
2,"Hang agc circuit for ssb and CW","72","09","W1ERJ",50,"Sep 72"
2,"Headphone cords (HN)","75","11","W2OLU",62,"Nov 75"
2,"Headphones, dual-impedance (HN)","79","01","AB9Q",80,"Jan 79"
2,"Headphones, lightweight","68","09","K6KA",34,"Sep 68"
2,"Heath HW-2036 mods (letter)","81","06","Mosher, E.A.",8,"Jun 81"
2,"Impedance match, microphone (HN)","73","09","W5JJ",67,"Sep 73"
2,"Improving the audio on the ICOM IC-27","86","02","KD8KZ",61,"Feb 86"
2,"Increased flexibility for the MFJ Enterprises CW filters","76","12","K3NEZ",58,"Dec 76"
2,"Intercom, simple (HN)","72","07","W4AYV",66,"Jul 72"
2,"Microphone preamplifier with agc","71","11","Bryant",28,"Nov 71"
2,"Microphone, using Shure 401A withDrake TR.4 (HN)","73","09","G3XOM",68,"Sep 73"
2,"Microphones and simple speech processing","80","03","W1OLP",30,"Mar 80"
2,"Microphones and simple speech processing","80","09","Letter, W5VWR",6,"Sep 80"
2,"Microphones, muting (HN)","75","11","W6IL",63,"Nov 75"
2,"Modifying microphones","87","01","VE7CB/W6",81,"Jan 87"
2,"Multiband Speech Processor","89","04","KL7ISA",32,"Apr 89"
2,"Notch filter, tunable RC","75","09","WA5SNZ",16,"Sep 75"
2,"Notch filter, tunable RC","77","04","Comment",78,"Apr 77"
2,"Oscillator, audio, IC","73","02","W6GXN",50,"Feb 73"
2,"Oscillator-monitor, solid-state audio","70","09","WA1JSM",48,"Sep 70"
2,"Passive audio filter design, part 2: highpass and bandpass filters","85","10","Niewiadomski, S.",41,"Oct 85"
2,"Passive audio filter design, part 2: highpass and bandpass filters","85","11","Comments, W3NQN",8,"Nov 85"
2,"Passive audio filter design, part 3","86","01","Stefan Niewiadomski",29,"Jan 86"
2,"Phone patch","71","07","W8GRG",20,"Jul 71"
2,"Phone patch using junk-box parts","80","10","K7NM",40,"Oct 80"
2,"Phone patches, building and using","85","10","N6ARE",34,"Oct 85"
2,"Power speaker enhances mobile operation","88","01","K1ZJH",83,"Jan 88"
2,"Pre-emphasis for asb transmitters","72","02","OH2CD",38,"Feb 72"
2,"Processor for code tapes","88","09","W4ULD",61,"Sep 88"
2,"RC active filters (letter)","78","06","W6NRM",102,"Jun 78"
2,"RC active filters using op amps","76","10","W4IYB",54,"Oct 76"
2,"Receivers, better audio for","77","04","K7GCO",74,"Apr 77"
2,"Repeaters, speech synthesis for","84","03","N9EE",79,"Mar 84"
2,"Rf clipper for the Collins S-line","71","08","K6JYO",18,"Aug 71"
2,"Rf speech processor, ssb","73","09","W2MB",18,"Sep 73"
2,"Sight and sound CW","88","01","W6NRW",10,"Jan 88"
2,"Simulated carbon microphones, using with Amateur transmitters","81","10","W9MKV",18,"Oct 81"
2,"Solo-16 Acoustic CW Speaker:The Weekender,","89","03","K1BQT",12,"Mar 89"
2,"Speaker-driver module, IC","72","09","WA2GCF",24,"Sep 72"
2,"Speech amplifiers, curing distortion","70","08","Allen",42,"Aug 70"
2,"Speech clipper, IC","73","02","K6HTM",18,"Feb 73"
2,"Speech clipper, IC","73","10","Added notes (letter)",64,"Oct 73"
2,"Speech clippers, rf","72","11","G6XN",26,"Nov 72"
2,"Speech clippers, rf","72","12","G6XN",12,"Dec 72"
2,"Speech clippers, rf","73","08","Added notes",58,"Aug 73"
2,"Speech clippers, rf","74","09","Added notes",72,"Sep 74"
2,"Speech clipping (letter)","72","07","W3EJD",72,"Jul 72"
2,"Speech clipping in single-sideband equipment","71","02","K1YZW",22,"Feb 71"
2,"Speech compressor (HN)","76","02","Novotny",70,"Feb 76"
2,"Speech processing","68","06","W1DTY",60,"Jun 68"
2,"Speech processing technique, split audio band","76","06","W1DTY",30,"Jun 76"
2,"Speech processing, principles of","75","02","ZL1BN",28,"Feb 75"
2,"Speech processing, principles of","75","05","Added notes",75,"May 75"
2,"Speech processing, principles of","75","11","Added notes",64,"Nov 75"
2,"Speech processing, split-band (letter)","80","02","Schreuer, N7WS",74,"Feb 80"
2,"Speech processor for ssb, simple","70","04","K6PHT",22,"Apr 70"
2,"Speech processor, audio-frequency","77","08","K3PDW",48,"Aug 77"
2,"Speech processor, audio-frequency","77","12","Short circuit",68,"Dec 77"
2,"Speech processor, IC","71","12","VK9GN",31,"Dec 71"
2,"Speech processor, logarithmic","70","01","WA3FIY",38,"Jan 70"
2,"Speech processor, split-band (letter)","79","12","WA2SSO",6,"Dec 79"
2,"Speech processors (letter)","80","08","K3ND",6,"Aug 80"
2,"Speech systems, improving","78","04","K2PMA",72,"Apr 78"
2,"Squelch, audio-actuated","72","04","K4MOG",52,"Apr 72"
2,"Synthesizer-filter, binaural","76","11","W6NRW",52,"Nov 76"
2,"Tape head cleaners (letter)","72","05","K4MSG",62,"May 72"
2,"Tape head cleaning (letter)","72","10","Buchanan",67,"Oct 72"
2,"Telephone ring indicator, visual (HN)","84","04","W2QLI",62,"Apr 84"
2,"TR-2400, external microphone for (HN)","82","03","WB2IFV",64,"Mar 82"
2,"Understanding telephones","85","09","N6ARE",39,"Sep 85"
2,"Understanding telephones","86","04","Comments, KD7WL",9,"Apr 86"
2,"Variable-frequency audio filter","79","04","W4VRV",62,"Apr 79"
2,"Voice-band equalizer","80","10","WB2GCR",50,"Oct 80"
2,"Voice-operated gate for carbon microphones","77","12","W6GXN",35,"Dec 77"
3,"3-500Z tube failure (HN)","82","10","AG6K",78,"Oct 82"
3,"300-Hz crystal filter for Collins receivers","75","09","W1DTY",58,"Sep 75"
3,"300-Hz crystal filter for Collins receivers (letter)","78","01","G3UFZ",90,"Jan 78"
3,"5CX1500A power pentode (HN)","82","10","K9XI",77,"Oct 82"
3,"Alliance rotator improvement (HN)","72","05","K6JVE",68,"May 72"
3,"Alliance T-45 rotator Improvement (HN)","71","09","WA0VAM",64,"Sep 71"
3,"Amateur Radio equipment survey number two","80","01","W1SL",52,"Jan 80"
3,"An Exclusive Look At Kenwood's TS-950S","89","10","NXIG",28,"Oct 89"
3,"An improved AGC Circuit","89","09","W8WFH",72,"Sep 89"
3,"Annunciator bell for the Kantronics KPC2","86","08","K1ZJH",22,"Aug 86"
3,"Argonaut 509 conversion for 30 meters (HN)","84","10","AA4LL",49,"Oct 84"
3,"Atlas 180, improved vfo stability (HN)","77","12","K6KLO",73,"Dec 77"
3,"Atlas 210 transceiver, sldetone (HN)","82","03","ZL2RP",67,"Mar 82"
3,"Atlas 210 transceiver, sldetone (HN)","82","10","Short circuit",79,"Oct 82"
3,"Atlas 350 AGC circuit, modifications (HN)","82","05","K0RL",42,"May 82"
3,"Autek filter (HN)","79","05","K6EVO, WA6WZQ",83,"May 79"
3,"C-64 and GLB PK-1 interface circuit","87","05","W2EHD",87,"May 87"
3,"CAT control system for the Yaesu FT-757GX","87","11","SM6CPI",26,"Nov 87"
3,"CDE tailtwister rotor, pulse-position control of","81","01","WE4EXW",30,"Jan 81"
3,"CDR AR-22 rotator, fixing a sticky","71","06","WA1ABP",34,"Jun 71"
3,"Cleanup tips for amateur equipment (HN)","78","06","Fisher",49,"Jun 78"
3,"Clegg 27B, S-meter for (HN)","74","11","WA2YUD",61,"Nov 74"
3,"Collins 32S cooling (HN)","79","11","N1FB",74,"Nov 79"
3,"Collins 32S PA disable jacks","80","03","N1FB",65,"Mar 80"
3,"Collins 32S, improved stability for (HN)","79","05","N1FB",83,"May 79"
3,"Collins 32S-1 CW modification (HN)","69","12","W1DTY",82,"Dec 69"
3,"Collins 32S-1 CW modification (HN)","70","09","Correction",76,"Sep 70"
3,"Collins 32S-1, updating","78","12","N1FB",76,"Dec 78"
3,"Collins 32S-3 audio (HN)","71","10","K6KA",64,"Oct 71"
3,"Collins 32S-series ALC meter improvement (HN)","77","11","W8FR",100,"Nov 77"
3,"Collins 516F-2 high-voltage regulation (HN)","79","06","N1FB",85,"Jun 79"
3,"Collins 516F-2 low-voltage and bias modification (HN)","81","07","N1FB",68,"Jul 81"
3,"Collins 516F-2 power supply, transient protection for","81","04","W6AD",31,"Apr 81"
3,"Collins 516F-2 solid-state rectifiers (HN)","79","02","N1FB",91,"Feb 79"
3,"Collins 51J product detector (letter)","78","10","K5CE",6,"Oct 78"
3,"Collins 51J PTO restoration","69","12","W6SAI",36,"Dec 69"
3,"Collins 51J, modifying for ssb reception","78","02","W6SAI",66,"Feb 78"
3,"Collins 70E12 PTO repair (HN)","77","02","W6BIH",72,"Feb 77"
3,"Collins 70K-2 PTO, correcting mechanical backlash (HN)","75","02","K9WEH",58,"Feb 75"
3,"Collins 75A-4 modifications (HN)","71","01","W4SD",67,"Jan 71"
3,"Collins 75A-4 receiver, improving overload response in","70","04","W6ZO",42,"Apr 70"
3,"Collins 75A-4 receiver, improving overload response in","70","09","Short circuit",76,"Sep 70"
3,"Collins 75A4 avc mod (letter)","75","09","W9KNI",63,"Sep 75"
3,"Collins 75A4 hints (HN)","72","04","W6VFR",68,"Apr 72"
3,"Collins 75A4 noise limiter","76","04","W1DTY",43,"Apr 76"
3,"Collins 75A4 PTO, making it perform like new","74","12","W3AFM",24,"Dec 74"
3,"Collins 75A4, increased selectivity for (HN)","75","11","W1DTY",62,"Nov 75"
3,"Collins 75S CW sidetone (HN)","79","04","N1FB",93,"Apr 79"
3,"Collins 75S frequency synthesizer","75","12","W6NBI",8,"Dec 75"
3,"Collins 75S frequency synthesizer","76","10","Short circuit",85,"Oct 76"
3,"Collins 75S receiver, (HN)","78","10","N1FB",94,"Oct 78"
3,"Collins 75S-3 alignment (HN)","81","01","N1FB",79,"Jan 81"
3,"Collins 75S-series crystal adapter (HN)","77","02","K1KXA",72,"Feb 77"
3,"Collins KWM-2 KWM-2A, owners' reports","81","03","WB1CHQ",22,"Mar 81"
3,"Collins KWM-2, updating","79","09","W6SAI",48,"Sep 79"
3,"Collins KWM-2/KWM-2A modifications (HN)","76","08","W6SAI",80,"Aug 76"
3,"Collins KWM2 transceivers, improved reliability (HN)","77","06","W6SAI",81,"Jun 77"
3,"Collins R-388(51J), inter-band calibration stability (HN)","77","09","W5OZF",95,"Sep 77"
3,"Collins R390 rf transformers, repairing (HN)","76","08","WA2SUT",81,"Aug 76"
3,"Collins R390A modifications","75","11","WA2SUT",58,"Nov 75"
3,"Collins R390A, improving the product detector","74","07","W7DI",12,"Jul 74"
3,"Collins R392, improved ssb reception with (HN)","77","07","VE3LF",88,"Jul 77"
3,"Collins receivers, 300-Hz crystal filter for","75","09","W1DTY",58,"Sep 75"
3,"Collins S-line backup power supply (HN)","79","10","N1FB",78,"Oct 79"
3,"Collins S-line monitoring (HN)","79","08","N1FB",78,"Aug 79"
3,"Collins S-line power supply mod (HN)","74","07","W6IL",61,"Jul 74"
3,"Collins S-line receivers, improved selectivity","76","06","W6FR",36,"Jun 76"
3,"Collins S-line spinner knob (HN)","72","04","W6VFR",69,"Apr 72"
3,"Collins S-line transceiver mod (HN)","72","11","W6VFR",71,"Nov 72"
3,"Collins S-line, improved frequency readout for the","76","06","W1GFC",53,"Jun 76"
3,"Collins S-line, owners' report","81","04","WB1CHQ",12,"Apr 81"
3,"Collins S-line, reducing warm-up drift","75","06","W6VFR",46,"Jun 75"
3,"Collins S-line, rf clipper for","71","08","K6JYO",18,"Aug 71"
3,"Collins S-line, rf clipper for","71","12","Correction",80,"Dec 71"
3,"Collins S-line, syllabic vox system for","77","10","W0IP",29,"Oct 77"
3,"Comdel speech processor, increasing the versatility of (HN)","71","03","W6SAI",67,"Mar 71"
3,"Computer control of ICOM R-71, 271, 471, and 751 radios","86","04","NG6Q",47,"Apr 86"
3,"Cornell-Dubilier rotators (HN)","75","05","K6KA",82,"May 75"
3,"DenTron 160XV transverter, stabilizing the (Weekender)","81","06","WB2QLL",46,"Jun 81"
3,"Drake gear, simple tune-up (HN)","77","01","W7DIM",79,"Jan 77"
3,"Drake R-4 receiver frequency synthesizer for","72","08","W6NBI",6,"Aug 72"
3,"Drake R-4 receiver frequency synthesizer for","74","09","Modification: letter",74,"Sep 74"
3,"Drake R-4B and TR-4, split-frequency operation","79","04","WB8JCQ",66,"Apr 79"
3,"Drake R-4C product detector, improving (HN)","80","03","W3CVS",64,"Mar 80"
3,"Drake R-4C receiver audio Improvements (HN)","81","01","W3CVS",79,"Jan 81"
3,"Drake R-4C, cleaner audio for (HN)","78","11","K1FO",88,"Nov 78"
3,"Drake R-4C, electronic bandpass tuning in","73","10","Horner",58,"Oct 73"
3,"Drake R-4C, new audio amplifier for","79","04","WB0JGP, K8RRH",48,"Apr 79"
3,"Drake R-4C, new product detector for (HN)","78","10","WB0JGP",94,"Oct 78"
3,"Drake R4C backlash, cure for (HN)","79","05","W3CVS",82,"May 79"
3,"Drake T-4X transmitters, improved tuning on 160 meters (HN)","79","01","W1IBI, W1HZH",81,"Jan 79"
3,"Drake TR-22C sensitivity improvement (HN)","79","10","K7OR",78,"Oct 79"
3,"Drake TR-4, using the Shure 401A microphone with (HN)","73","09","G3XOM",68,"Sep 73"
3,"Drake TR-7 transceiver, Woodpecker noise blanker for (HN)","81","02","K1KSY",67,"Feb 81"
3,"Drake W-4 directional wattmeter","68","03","W1DTY",86,"Mar 68"
3,"Eimac chirp and drift (HN)","70","06","W5OZF",68,"Jun 70"
3,"EX crystal and oscillator","68","04","WB2EGZ",60,"Apr 68"
3,"Extending receive coverage for the IC-02 and IC-04","86","07","WB6GTM",77,"Jul 86"
3,"Extending receive coverage for the IC-02 and IC-04","87","05","Comments: WB6GTM",6,"May 87"
3,"Factory service (letter)","80","07","W6HK",6,"Jul 80"
3,"Feedline loss, calculating with a single measurement at the transmitter (HN)","78","06","K9MM",96,"Jun 78"
3,"FT-101E, 10-meter preamp for","81","07","K1NYK",26,"Jul 81"
3,"Galaxy feedback (HN)","70","01","WA5TFK",71,"Jan 70"
3,"Genave transceivers, S-meter for (HN)","77","03","K9OXX",80,"Mar 77"
3,"Hallicrafters HT-37, improving","79","02","W8NIF",78,"Feb 79"
3,"Hallicrafters HT-37, increased sideband suppression","69","11","W3CM",48,"Nov 69"
3,"Ham radio techniques","84","05","W6SAI",63,"May 84"
3,"Ham radio techniques, fifty years ago","84","06","W6SAI",58,"Jun 84"
3,"Ham Radio Techniques: "white noise" revisited","87","10","W6SAI",79,"Oct 87"
3,"Ham-3 rotator, digital readout for","79","01","K1DG",56,"Jan 79"
3,"Ham-M modification (HN)","76","05","W2TQK",72,"May 76"
3,"Ham-M rotator automatic position control","77","05","WB6GNM",42,"May 77"
3,"Ham-M rotator control box, modifications of (HN)","80","11","K4DLA/W1RDR",68,"Nov 80"
3,"Ham-M rotator torque loss (HN)","79","06","W1JR",85,"Jun 79"
3,"Ham-M rotator torque loss (HN)","79","09","Short circuit",92,"Sep 79"
3,"Hammarlund HQ215, adding 160-meter coverage","72","01","W2GHK",32,"Jan 72"
3,"Heath CA1, ten-minute timer from (HN)","68","07","K8HZ",74,"Jul 68"
3,"Heath HD-10 keyer, positive lead keying (HN)","78","11","W4VAF",88,"Nov 78"
3,"Heath HD-1982 Micoder for low-impedance operation","78","05","Johnson, Wesley",86,"May 78"
3,"Heath HG-10B vfo, independent keying of (HN)","70","09","K4BRR",67,"Sep 70"
3,"Heath HM-2102 vhf wattmeter, high power calibration for (HN)","76","02","W9TKR",70,"Feb 76"
3,"Heath HM-2102 wattmeter mode (letter)","75","09","K3VNR",64,"Sep 75"
3,"Heath HM-2102 wattmeter, better balancing (HN)","75","01","VE6RF",56,"Jan 75"
3,"Heath HO-10 as RTTY monitor scope (HN)","74","09","K9HVW",70,"Sep 74"
3,"Heath HR-2B external speaker and tonepad (HN)","78","11","N1FB",89,"Nov 78"
3,"Heath HW-100 incremental tuning (HN)","69","06","K1GUU",67,"Jun 69"
3,"Heath HW-100 tuning knob, loose (HN)","71","06","VE3EPY",68,"Jun 71"
3,"Heath HW-100, HW-101, grid-current monitor for","73","02","K4MFR",46,"Feb 73"
3,"Heath HW-100, the new","68","09","W1NLB",64,"Sep 68"
3,"Heath HW-101 sidetone control (HN)","79","07","AD9M",79,"Jul 79"
3,"Heath HW-101, using with a separate receiver (HN)","73","10","WA1MKP",63,"Oct 73"
3,"Heath HW-12 on MARS (HN)","71","09","K8AUH",63,"Sep 71"
3,"Heath HW-16 keying (HN)","73","12","W7DI",57,"Dec 73"
3,"Heath HW-16, low-impedance headphones for (HN)","77","07","WN8WJR",88,"Jul 77"
3,"Heath HW-16, vfo operations for","73","03","WB6MZN",54,"Mar 73"
3,"Heath HW-16, vfo operations for","73","12","Short circuit",58,"Dec 73"
3,"Heath HW-17 modifications (HN)","71","03","WA5PWX",66,"Mar 71"
3,"Heath HW-17A, perking up (HN)","70","08","HN",70,"Aug 70"
3,"Heath HW-202 lamp replacement (HN)","76","09","W5UNF",83,"Sep 76"
3,"Heath HW-202, adding private-line","74","06","WA8AWJ",53,"Jun 74"
3,"Heath HW-202, another look at the fm channel scanner for","76","03","K7PYS",68,"Mar 76"
3,"Heath HW-2036 antenna socket (HN)","79","01","W3HCE",80,"Jan 79"
3,"Heath HW-2036, carrier-operated relay for","80","02","WD5HYO",58,"Feb 80"
3,"Heath HW-2036, Lever action switch illumination (HN)","78","07","W2IFR",99,"Jul 78"
3,"Heath HW-2036, outboard LED frequency display","78","07","WB8TJL",50,"Jul 78"
3,"Heath HW-2036, updating to the HW-2036A","79","03","WB6TMH, WA6ODR",62,"Mar 79"
3,"Heath HW-7 mods, keying and receiver blanking (HN)","74","12","WA5KPG",60,"Dec 74"
3,"Heath HW-8, improved keying for (HN)","82","08","W3HVK",60,"Aug 82"
3,"Heath HWA-2036-3 crowbar circuit (HN)","78","11","W3HCE",88,"Nov 78"
3,"Heath HX-1681","83","09","W2UWO",83,"Sep 83"
3,"Heath IM-11 vtvm, convert to IC voltmeter","74","12","K6VCI",42,"Dec 74"
3,"Heath intrusion alarm (HN)","77","06","Rossman",81,"Jun 77"
3,"Heath Micoder improvements","78","11","W1OLP",42,"Nov 78"
3,"Heath Micoder matching (letter)","78","09","WB8VUN",8,"Sep 78"
3,"Heath Model IO-4530 oscilloscope, modifications","82","08","Bailey",20,"Aug 82"
3,"Heath SB receivers, RTTY reception with (HN)","71","10","K9HVW",64,"Oct 71"
3,"Heath SB-100, using an outboard receiver with (HN)","70","02","K4GMR",68,"Feb 70"
3,"Heath SB-102 headphone operation (HN)","77","10","K1KXA",87,"Oct 77"
3,"Heath SB-102 modifications (HN)","75","06","W2CNQ",58,"Jun 75"
3,"Heath SB-102 modifications (HN)","77","03","W2CNQ",78,"Mar 77"
3,"Heath SB-102 modifications (HN)","77","03","W2CNQ",79,"Mar 77"
3,"Heath SB-102 modifications (letter)","78","03","W1JE",110,"Mar 78"
3,"Heath SB-102, receiver incremental tuning for (HN)","76","08","K1KXA",81,"Aug 76"
3,"Heath SB-102, rf speech processor for","75","06","W6IVI",38,"Jun 75"
3,"Heath SB-102, WWV on (HN)","77","01","K1KXA",78,"Jan 77"
3,"Heath SB-200 amplifier modifying for the 8873 zero-bias triode","71","01","W6UOV",32,"Jan 71"
3,"Heath SB-200 amplifier, six-meter conversion","71","11","K1RAK",38,"Nov 71"
3,"Heath SB-200 CW modification","77","11","K6YB",99,"Nov 77"
3,"Heath SB-300, RTTY with","68","07","W2ARZ",76,"Jul 68"
3,"Heath SB-303, 10-MHz coverage for (HN)","74","02","W1JE",61,"Feb 74"
3,"Heath SB-400 and SB-401, improving alc response in (HN)","70","01","WA9FDQ",71,"Jan 70"
3,"Heath SB-610 as RTTY monitor scope (HN)","74","09","K9HVW",70,"Sep 74"
3,"Heath SB-650 using with other receivers","73","06","K2BYM",40,"Jun 73"
3,"Heath SB-series crystal control and narrow shift RTTY with (HN)","73","06","WA4VYL",54,"Jun 73"
3,"Heath SE-400/SB-401, simple speech amplifier for (HN)","81","06","W8LMH",72,"Jun 81"
3,"Heath ten-minute timer","71","12","K6KA",75,"Dec 71"
3,"Heath's new all-band transceiver, the SS-MW","82","11","W9JUV",12,"Nov 82"
3,"Heathkit HW-202, fm channel scanner for","75","02","W7BZ",41,"Feb 75"
3,"Heathkit HW-2036, updating the","80","11","WA4BZP",50,"Nov 80"
3,"Heathkit HW-8, increased break-in delay (HN)","79","06","K6YB",84,"Jun 79"
3,"Heathkit Micoder adapted to low-impedance input (HN)","79","08","WB2GXF",78,"Aug 79"
3,"Heathkit SB-104A, Improved receiver performance for","81","04","N2EO",78,"Apr 81"
3,"Heathkit SB-series equipment, heterodyne crystal switching (HN)","77","03","K1KXA",78,"Mar 77"
3,"Heathkit Sixer, spot switch (HN)","69","12","WA6FNR",84,"Dec 69"
3,"Heathkit, noise limiter for (HN)","71","03","W7CKH",67,"Mar 71"
3,"Henry 2K4 and 3KA linears, electronic bias switching","78","08","W1CBY",75,"Aug 78"
3,"HP-35 calculator, keyboard cleaning (HN)","78","07","Anderson, Leonard H.",40,"Jul 78"
3,"Hy-Gain 400 rotator, improved indicator system for","78","05","W4PSJ",60,"May 78"
3,"IC2AT, carrying case for (HN)","83","08","W6XM",62,"Aug 83"
3,"ICOM 701 owners' report","81","10","WB1CHQ",56,"Oct 81"
3,"ICOM IC-22S, using below 146 MHz (HN)","79","04","W1IBI",92,"Apr 79"
3,"ICOM IC-230, adding splinter channels (HN)","76","09","WA1OJX",82,"Sep 76"
3,"ICOM IC-2A(T), odd splits","82","07","N7AAD",65,"Jul 82"
3,"ICOM's newest transceiver","88","03","N1ACH",17,"Mar 88"
3,"ICOM-22A wiring change (HN)","77","02","K1KXA",73,"Feb 77"
3,"ICs, drilling template for (HN)","77","03","WA4WDL, WB4LJM",78,"Mar 77"
3,"Improved gain distribution for the Yaesu FT-726R","87","07","K1ZJH",53,"Jul 87"
3,"Improving the audio on the ICOM IC-27","86","01","KD8KZ",29,"Jan 86"
3,"James Research oscillator/monitor","68","03","W1DTY",91,"Mar 68"
3,"James Research permaflex key","68","12","W1DTY",73,"Dec 68"
3,"Johnson Matchbox, improved","79","07","K4IHV",45,"Jul 79"
3,"Johnson Matchbox, improved","79","09","Short circuit",92,"Sep 79"
3,"Kenwood TR-7400A, scanner for (the Kenscan 74)","81","01","WB7QYB",50,"Jan 81"
3,"Kenwood TR7500, preprogrammed (HN)","78","10","W9KNI",95,"Oct 78"
3,"Kenwood TS-520 CW filter modification(HN)","75","11","W7ZZ",21,"Nov 75"
3,"Kenwood TS-520, TVI cure for (HN)","77","01","W3FUN",78,"Jan 77"
3,"Kenwood TS-520-SE transceiver, counter mixer for","80","09","W5NPD",60,"Sep 80"
3,"Kenwood TS-530S, more RIT/XIT for the (HN)","90","04","WB4EHS",58,"Apr 90"
3,"KLM antenna rotor, computer control for (HN)","81","02","W8MQW",66,"Feb 81"
3,"Knight-kit inverter/charger review","69","04","W1DTY",64,"Apr 69"
3,"Knight-kit two-meter transceiver","70","06","W1DTY",62,"Jun 70"
3,"Kudos for Kantronics","87","06","Comments: WB3EXR",6,"Jun 87"
3,"KWM2, RIT for the (HN)","84","07","KH6JF",109,"Jul 84"
3,"Measurements Corporation 59 grid-dip oscillator improvements","78","11","W6GXN",82,"Nov 78"
3,"Micro Mart RM terminal modification (HN)","78","06","WA5VQK",99,"Jun 78"
3,"Mini-mitter II","71","12","W6SLO",72,"Dec 71"
3,"Mini-mitter II modifications (HN)","76","04","K1ETU",64,"Apr 76"
3,"Modifying the Trio-Kenwood TS930S","86","04","WB9BXT",67,"Apr 86"
3,"Modifying the Yaesu FT-301 for 30-meter coverage","86","03","AF9Q",42,"Mar 86"
3,"More fixes for the IC22S VHF radio","88","10","VE6ZS",91,"Oct 88"
3,"More optional notes on the TS-930S","88","04","W6FR",23,"Apr 88"
3,"Motorola channel elements","72","12","WB4NEX",32,"Dec 72"
3,"Motorola Dispatcher, converting to 12 volts","72","07","WB6HXU",26,"Jul 72"
3,"Motorola Dispatcher, converting to 12 volts","74","03","Short circuit",64,"Mar 74"
3,"Motorola fm receiver mods (HN)","71","08","VE4RE",60,"Aug 71"
3,"Motorola P-33 series, improving","71","02","WB2AEB",34,"Feb 71"
3,"Motorola receivers, op-amp relay for","73","07","W6GDO",16,"Jul 73"
3,"Motorola voice commander, improving","70","10","W0DKU",70,"Oct 70"
3,"Motrac Receivers (letter)","71","07","K5ZBA",69,"Jul 71"
3,"National NCL-2000, using the Drake T-4XC (HN)","78","01","K5ER",94,"Jan 78"
3,"Ni-cad battery charging (letter)","80","07","W6NRM",6,"Jul 80"
3,"Owners survey: 2-meter handhelds","82","07","KA1ZM",35,"Jul 82"
3,"Owners' survey, TR7","81","11","WB1CHQ",66,"Nov 81"
3,"Practically speaking: now that the warranty has expired","85","09","K4IPV",67,"Sep 85"
3,"Practically speaking: now that the warranty has expired","85","11","Comments, W5QJM",8,"Nov 85"
3,"Quement circular slide rule","68","04","W2DXH",62,"Apr 68"
3,"R-1000 mod (HN)","82","08","W6XM",60,"Aug 82"
3,"R-392 receiver mods (HN)","76","04","KH6FOX",65,"Apr 76"
3,"RDF, An improved","87","07","K0OV",67,"Jul 87"
3,"Regency HA transceivers, signal-peaking indicator and generator for (HN)","76","06","W8HVG",68,"Jun 76"
3,"Regency HR-2, narrowbanding","73","12","WA8TMP",44,"Dec 73"
3,"Regency HR-212, channel scanner for","75","03","WA0SJK",28,"Mar 75"
3,"S-line, QSK noise (HN)","82","03","N1FB",66,"Mar 82"
3,"SB-220 transceiver, inrush current protection for - Weekender","80","12","W3GYM",66,"Dec 80"
3,"SB-303 receiver, noise reduction (HN)","82","06","Suzuki",70,"Jun 82"
3,"SB301/401, Improved sidetone operation","69","10","W1WLZ",73,"Oct 69"
3,"SBE linear amplifier tips (HN)","69","03","WA6DCW",71,"Mar 69"
3,"Signal One review","69","05","W1NLB",56,"May 69"
3,"Simple IC-735 to C-64 interface","87","03","N7ICW",39,"Mar 87"
3,"Simple modifications and adjustments for the TS-930S","87","04","W6FR",19,"Apr 87"
3,"Sony ICF-2001, eight-channel memory scanner for","82","08","W3CSW",54,"Aug 82"
3,"Spurious causes (HN)","74","01","K6KA",66,"Jan 74"
3,"Standard 826M, more power from (HN)","75","04","WB6KVF",68,"Apr 75"
3,"Swan 120, converting to two meters","68","05","K6RIL",8,"May 68"
3,"Swan 160X birdie suppression (HN)","78","10","W6SAI",36,"Oct 78"
3,"Swan 250 Carrier suppression (HN)","76","10","WB8LGA",79,"Oct 76"
3,"Swan 250, update your (HN)","69","12","K8ZHZ",84,"Dec 69"
3,"Swan 350 and 400, RTTY operation (HN)","69","08","WB2MIC",67,"Aug 69"
3,"Swan 350 CW monitor (HN)","72","06","K1KXA",63,"Jun 72"
3,"Swan 350 CW monitor (HN)","73","05","Correction: letter",77,"May 73"
3,"Swan 350, curing frequency drift","79","08","WA6IPH",42,"Aug 79"
3,"Swan 350, receiver incremental tuning (HN)","71","07","K1KXA",64,"Jul 71"
3,"Swan television interference: an effective remedy","71","04","W2OUX",46,"Apr 71"
3,"T150A frequency stability (HN)","69","04","WB2MCP",70,"Apr 69"
3,"Technology of commercial television part 2: hardware","88","01","KL7AJ",54,"Jan 88"
3,"Telefax transceiver conversion","74","04","K0QMR",16,"Apr 74"
3,"Ten-Tec Argonaut, accessory package for","74","04","W7BBX",26,"Apr 74"
3,"Ten-Tec Corsair modification (HN)","84","04","N3BEK",62,"Apr 84"
3,"Ten-Tec Horizon/2 audio modification (HN)","79","10","WB9RKN",79,"Oct 79"
3,"Ten-Tec KR-20 keyer, stabilization of (HN)","76","07","W3CRG",69,"Jul 76"
3,"Ten-Tec Omni-D, improved CW agc for (HN)","80","01","W6OA",88,"Jan 80"
3,"Ten-Tec RX10 communicators receiver","71","06","W1NLB",63,"Jun 71"
3,"Thumbwheel frequency selector for the Yaesu FT-757GX","87","11","KA9SNF",33,"Nov 87"
3,"TR-2500/2600 2-channel programming (HN)","85","10","K9MLD",128,"Oct 85"
3,"Triton IV, 30-meter operation (HN)","83","06","AA4LL",68,"Jun 83"
3,"TS-430S IF filter mod (HN)","84","05","KB0CY",125,"May 84"
3,"TS-820 filter switching modification (HN)","80","06","K7OAK",72,"Jun 80"
3,"TS-820/TS-820S, reducing interference in (HN)","80","01","W4MB",88,"Jan 80"
3,"TS-930S headset audio, increased undistorted (HN)","85","10","W6FR",128,"Oct 85"
3,"Updating the Viking MB-VA antenna tuner (HN)","90","03","VE7GWO",43,"Mar 90"
3,"Using an RTTY terminal unit with the Heathkit HD4040 TNC","86","08","AA8V",59,"Aug 86"
3,"Wilson Mark II and IV, modifications to (HN)","80","01","W9EPT",89,"Jan 80"
3,"Yaesu FT-227R memorizer, improved memory (HN)","79","08","WA2DHF",79,"Aug 79"
3,"Yaesu FT101 clarifier (letter)","75","11","K1NUN",55,"Nov 75"
3,"Yaesu sideband switching (HN)","73","12","W2MUU",56,"Dec 73"
3,"Yaesu spurious signals (HN)","71","12","K6KA",69,"Dec 71"
3,"Yaesu spurious signals (HN)","73","10","Units affected (letter)",67,"Oct 73"
4,"Bandpass filter design, interdigital, computer-aided","85","01","N6JH, Monemzadeh",12,"Jan 85"
4,"Bandpass filter design, interdigital, computer-aided","85","06","Short circuit",117,"Jun 85"
4,"Computer-aided design of long VHF Yagi antennas","86","05","VK4ZF",28,"May 86"
4,"Computer-aided design of printed circuit boards","90","01","NU1N",10,"Jan 90"
4,"Design a no-tune amplifier with your personal computer","87","09","W7DHD",8,"Sep 87"
4,"Designing Yagis with the Commodore 64","86","01","N0CAO",107,"Jan 86"
4,"Diagnostic serial data latch","88","04","KA9SNF",56,"Apr 88"
4,"Direct currents reduce core permeability","86","07","K5BVM",58,"Jul 86"
4,"Direct currents reduce core permeability","86","07","Short circuit",87,"Jul 86"
4,"Elmer's notebook: modems and RS-232","88","10","W1SL",113,"Oct 88"
4,"Gamma matching programs for the C-64/128","87","05","N0CAO",87,"May 87"
4,"Ham notebook: rebuild your C-64 keyboard with C-16 parts","88","02","AF8B",74,"Feb 88"
4,"Linear design by computer","87","02","W4MB",37,"Feb 87"
4,"Low-cost pc board layout software","87","10","Freeman, Eve",8,"Oct 87"
4,"Remote repeater programming using a computer and a telephone","86","03","KD9BC",89,"Mar 86"
4,"RF filters, Build narrowband","86","03","WB4EHS",10,"Mar 86"
4,"RF filters, Build narrowband","86","06","Short circuit",36,"Jun 86"
4,"Solving transmission line problems on your Commodore 64","86","05","K9CZB",74,"May 86"
4,"Top-down filter design","87","01","VE5FP",41,"Jan 87"
4,"VHF Yagi CAD on the C-64","86","05","W4PFZ",74,"May 86"
4,"Yagi design program","87","05","Comments: W6NBI",6,"May 87"
4,"Yagis, designing with the Commodore 64","85","06","WA3EKL",59,"Jun 85"
5,"2-meter monitor","88","07","WA3ENK",64,"Jul 88"
5,"A dab of paint, a drop of wax (HN)","68","08","VE3BUE",78,"Aug 68"
5,"A New Addition for Your TNC","89","12","K9MLD",72,"Dec 89"
5,"AC line cords (letter)","71","12","W6EG",80,"Dec 71"
5,"Advanced CW processor","86","12","W6NRW",25,"Dec 86"
5,"Air-wound coils, constructing","84","08","W7BKE",37,"Aug 84"
5,"Aluminum tubing, clamping (HN)","75","05","WA9HUV",78,"May 75"
5,"Aluminum's new face","68","05","W4BRS",60,"May 68"
5,"An Audio Patch Panel for the Multimode Station","89","12","KB6IC",65,"Dec 89"
5,"An NE602-based QRP Transceiver for 20-meter CW","89","01","K1BQT",9,"Jan 89"
5,"An RTTY Converter","89","06","W1VO",76,"Jun 89"
5,"AN/UPX-6 cavities, converting surplus","81","03","W6NBI",12,"Mar 81"
5,"Analog Panel Meters","89","04","W6WTU",39,"Apr 89"
5,"Anodize dyes (letter)","79","09","W4MB",6,"Sep 79"
5,"Anodizing aluminum","79","01","VE7DKR",62,"Jan 79"
5,"Anodizing aluminum","79","11","Comments, WA9UXK",6,"Nov 79"
5,"Antenna carriage and track pole mount","83","08","K83K",46,"Aug 83"
5,"Antenna hinge","83","08","N4LI",70,"Aug 83"
5,"Antenna insulators, homemade (HN)","73","05","W7ZC",70,"May 73"
5,"APC trimmer, adding shaft to (HN)","69","07","W1ETT",68,"Jul 69"
5,"Audio filter building blocks","83","07","KB0CY",74,"Jul 83"
5,"Audio filter building blocks","83","11","Short circuit",92,"Nov 83"
5,"Automatic Rotor Brake Delay","89","08","WA1SPI",89,"Aug 89"
5,"Battery charger, NiCd, constant current, a pulsed","85","08","K2MWU",67,"Aug 85"
5,"Blower-to-chassis adapter (HN)","71","02","K6JYO",73,"Feb 71"
5,"BNC connectors, mounting (HN)","70","01","W9KXJ",70,"Jan 70"
5,"Build a better box","84","08","Gruchalla, Michael",45,"Aug 84"
5,"Build narrowband RF filters, Comments","86","09","WB4EHS",9,"Sep 86"
5,"Bulkhead connector (HN)","85","04","K9CZB",78,"Apr 85"
5,"Bulkhead connector (HN)","85","07","Short circuit",74,"Jul 85"
5,"Cabinet construction techniques","79","03","W7KDM",76,"Mar 79"
5,"Capacitors, custom, how to make","77","02","WB0ESV",36,"Feb 77"
5,"Capacitors, oil-filled (HN)","72","12","W2OLU",66,"Dec 72"
5,"Carpet samples in the ham shack","87","09","K1ZJH",82,"Sep 87"
5,"Center insulator, dipole","69","05","WA1ABP",69,"May 69"
5,"Cheap dots (HN)","82","09","W6XM",77,"Sep 82"
5,"Circuit boards with terminal inserts (HN)","75","11","W3K8M",61,"Nov 75"
5,"Cliplead carousel (HN)","79","10","WB1AQM",79,"Oct 79"
5,"Coax cable, salvaging water-damaged (HN)","80","01","W5XW",88,"Jan 80"
5,"Coax connectors, repairing broken (HN)","70","06","W0HKF",66,"Jun 70"
5,"Coax relay coils, another use (HN)","69","08","K0VQY",72,"Aug 69"
5,"Coaxial cable connectors (HN)","69","03","WA1ABP",71,"Mar 69"
5,"Coaxial cable connectors, homebrew hardline-to-uhf","80","04","K2YOF",32,"Apr 80"
5,"Code practice oscillator (weekender)","88","10","N2DCH",65,"Oct 88"
5,"Coils, self-supporting","77","07","Anderson",42,"Jul 77"
5,"Cold galvanizing compound (HN)","72","09","W5UNF",70,"Sep 72"
5,"Collector Matching Networks","89","01","KZ9J",34,"Jan 89"
5,"Color coding parts (HN)","72","02","WA7BPO",58,"Feb 72"
5,"Common-point Grounding: Lightning Protection for Repeaters","89","07","KIZJH",24,"Jul 89"
5,"Component marking (HN)","71","11","W1JE",66,"Nov 71"
5,"Construction techniques using PVC pipe to make antennas","88","09","W2OQI",98,"Sep 88"
5,"Cooling semiconductors part 1: designing and using heatsinks","84","07","Martin, Vaughn D.",33,"Jul 84"
5,"Cooling semiconductors part 2: blowers and fans","84","08","Martin, Vaughn D.",52,"Aug 84"
5,"Crystal switching, remote (HN)","79","02","WA8YBT",91,"Feb 79"
5,"Custom resistors, nomogram design","83","06","WA5EKA",68,"Jun 83"
5,"Deburring holes (HN)","68","07","W2DXH",75,"Jul 68"
5,"Design an amplifier around the 3CX1200A7","87","12","W7DHD",33,"Dec 87"
5,"Digi-Keyer","89","10","AB4DP",68,"Oct 89"
5,"Drill guide (HN)","71","10","W5BVF",68,"Oct 71"
5,"Drilling aluminum (HN)","75","09","W6IL",67,"Sep 75"
5,"DTMF tone signaling circuit","88","09","WV6A",42,"Sep 88"
5,"Dummy load, DC","85","04","W4MLE",91,"Apr 85"
5,"Dust buildup, decreasing (HN)","82","09","K4KI",77,"Sep 82"
5,"Elevation indicator, inexpensive","85","06","W5JTL",67,"Jun 85"
5,"Elmer's Notebook: elementary electronics- alternating current and capacitors","90","05","W1SL",67,"May 90"
5,"Elmer's Notebook: elementary electronics- capacitors","90","02","W1SL",90,"Feb 90"
5,"Elmer's Notebook: elementary electronics- exploring resistance","90","01","W1SL",92,"Jan 90"
5,"Elmer's Notebook: elementary electronics- inductors and AC","90","04","W1SL",84,"Apr 90"
5,"Elmer's Notebook: elementary electronics- wrapping up AC theory","90","06","W1SL",63,"Jun 90"
5,"Elmer's Notebook: FETS-The Other Transistors","89","02","W1SL",104,"Feb 89"
5,"Elmer's Notebook: Simple Instruments RF Output Monitor","89","11","W1SL",91,"Nov 89"
5,"Elmer's notebook: the myterious "Q"","88","09","W1SL",110,"Sep 88"
5,"Elmer's Notebook: Transistors and How They Work","89","01","W1SL",62,"Jan 89"
5,"Elmer's Notebook: Visual Aids- Liquid Crystal Displays","89","08","W1SL",81,"Aug 89"
5,"Elmer's Notebook: Voltage-variable Capacitors","89","04","W1SL",100,"Apr 89"
5,"Enclosures, homebrew custom","74","07","W4YUU",50,"Jul 74"
5,"Etch tank (HN)","77","01","W3HUC",79,"Jan 77"
5,"Exploding diodes (HN)","73","12","VE3FEZ",57,"Dec 73"
5,"Extend Your DVM's Measurement Capabilities","89","10","N6YC",72,"Oct 89"
5,"Fan, speed control (HN)","82","09","K4KI",77,"Sep 82"
5,"Ferrite beads","70","10","W5JJ",48,"Oct 70"
5,"Ferrite beads, how to use","73","03","K1ORV",34,"Mar 73"
5,"Files, cleaning (HN)","74","06","Walton",66,"Jun 74"
5,"Filter chokes, unmarked","68","11","W0KMF",60,"Nov 68"
5,"Five-band Junkbox Transmitter","89","12","W3RMD",42,"Dec 89"
5,"G.O.E.S. reception: a simple approach","84","01","WA4WDL",46,"Jan 84"
5,"Get the most from your NiCds (Weekender)","88","12","K3OF",88,"Dec 88"
5,"Grommet shock mount (HN)","68","10","VE3BUE",77,"Oct 68"
5,"Grounding (HN)","69","06","W9KXJ",67,"Jun 69"
5,"Ham notes: Waterproofing fittings","86","11","W4MLE",101,"Nov 86"
5,"Heat sinks, homemade (HN)","70","09","WA0WOZ",69,"Sep 70"
5,"Heatsink cooling fan (HN)","83","07","W6XM",22,"Jul 83"
5,"Heatsink cooling fan (HN)","83","10","Comments, W2GH",8,"Oct 83"
5,"Heatsink cooling fan (HN)","84","05","Comments, DJ4BZ",12,"May 84"
5,"High-frequency dummy load (HN)","84","06","W1KWE",64,"Jun 84"
5,"Homebrew art","69","06","W0PEM",56,"Jun 69"
5,"Homebrew Neutralizing Capacitor","89","05","N4LC",38,"May 89"
5,"Homebrew tuning dial","88","12","N2DCH",75,"Dec 88"
5,"Homebrewing equipment from parts to metal work","88","03","W7KBE",26,"Mar 88"
5,"Hot etching (HN)","73","01","K8EKG",66,"Jan 73"
5,"Hot wire stripper (HN)","71","11","W8DWT",67,"Nov 71"
5,"IC holders (HN)","76","08","W3HUC",80,"Aug 76"
5,"IC lead former (HN)","74","01","W5ICV",67,"Jan 74"
5,"IC2AT, carrying case for (HN)","83","08","W6XM",62,"Aug 83"
5,"Indicator circuit, LED","77","04","WB6AFT",60,"Apr 77"
5,"Inductance equation, a different approach (HN)","84","12","K4KI",116,"Dec 84"
5,"Inductance, toroidal coil (HN)","75","09","W3WLX",26,"Sep 75"
5,"Industrial cartridge fuses, using (HN)","68","09","VE3BUE",76,"Sep 68"
5,"Junk-box ingenuity; how to buy, use, and recycle surplus electronic parts","84","08","WB4EHS",32,"Aug 84"
5,"Keeping an Eye on Your Sideband PEP","89","09","GW4NAH",17,"Sep 89"
5,"Lightning protection (letter)","79","12","K9MM",12,"Dec 79"
5,"Linear Tuning with a War Surplus Capacitor","89","06","N2DCH",40,"Jun 89"
5,"lnductors, graphical aid for winding","77","04","W7POG",41,"Apr 77"
5,"Low-cost pc board layout software","87","10","Freeman, Eve",8,"Oct 87"
5,"Magnetic fields and the 7360 (HN)","73","09","W7DI",66,"Sep 73"
5,"Make a homebrew sheet metal brake for chassis construction projects","86","06","WB6BIH",43,"Jun 86"
5,"Making printed circuit boards","90","01","WA3JUF",27,"Jan 90"
5,"Metal cleaning with dip-type cleaners (HN)","82","01","W5XW",82,"Jan 82"
5,"Metal cleaning with dip-type cleaners (HN)","82","06","Comment, K6YPD",8,"Jun 82"
5,"Metalized capacitors (HN)","79","05","W8YFB",82,"May 79"
5,"Metric conversions for screw and wiresizes","75","09","W1DTY",67,"Sep 75"
5,"Microcircuits, visual aids for working on","78","07","K9SRL",90,"Jul 78"
5,"Microstrip impedance program","84","12","K8UR",84,"Dec 84"
5,"Miniature sockets (HN)","69","12","Lawyer",84,"Dec 69"
5,"Minibox, cutting down to size (HN)","74","03","W2OUX",57,"Mar 74"
5,"Mobile installation, putting together","69","08","W0FCH",36,"Aug 69"
5,"Mobile mount bracket (HN)","70","02","W4NJF",70,"Feb 70"
5,"Modular converter, 144-MHz","70","10","W6UOV",64,"Oct 70"
5,"Motorized Agitator for Your Printed Circuit Boards","89","06","K3OF",68,"Jun 89"
5,"NE5205 wideband RF amplifier","86","09","Gruchalla, Michael",30,"Sep 86"
5,"NE5205 wideband RF amplifier","87","01","Short circuit",72,"Jan 87"
5,"Near linear tuning with dual eccentric pulleys","90","01","N2DCH",53,"Jan 90"
5,"Neutralizing tip (HN)","72","12","ZE6JP",69,"Dec 72"
5,"New uses for old tuners","88","01","W6WTU",25,"Jan 88"
5,"Noisy fans (HN)","72","11","W8IUF",70,"Nov 72"
5,"Noisy fans (HN)","73","10","Correction (letter)",67,"Oct 73"
5,"Nuvistor heat sinks (HN)","73","12","WA0KKC",57,"Dec 73"
5,"Parasitic suppressor (HN)","70","04","WA9JMY",80,"Apr 70"
5,"Passive audio filter design, part 1: development and analysis","85","09","Niewiadomski, S.",17,"Sep 85"
5,"PC layout using longhand","78","11","WB9QZE",26,"Nov 78"
5,"PC layout using longhand","79","06","Comments, W5TKP",6,"Jun 79"
5,"PEP Wattmeter","89","10","WA1SPI",76,"Oct 89"
5,"Phone plug wiring (HN)","79","06","N1FB",85,"Jun 79"
5,"Polymer film transforms mechanical energy to electrical energy","84","12","WA4KFZ",55,"Dec 84"
5,"Power FETS: trend for VHF amplifiers","84","01","Peters, Daniel and W7PUA",12,"Jan 84"
5,"Practically speaking: "ferriting" out the problem","88","06","K4IPV",72,"Jun 88"
5,"Practically speaking: drift and shift","88","01","K4IPV",75,"Jan 88"
5,"Practically speaking: feedback","88","05","K4IPV",60,"May 88"
5,"Practically speaking: grounding and shielding, pt.1","87","04","K4IPV",47,"Apr 87"
5,"Practically speaking: grounding and shielding, pt.2","87","05","K4IPV",81,"May 87"
5,"Practically speaking: grounding and shielding, pt.2","87","08","Comments: KA8DKT",6,"Aug 87"
5,"Practically speaking: Keep it cool","86","04","K4IPV",75,"Apr 86"
5,"Practically Speaking: Light Metal and Other Topics","89","04","K4IPV",23,"Apr 89"
5,"Practically speaking: noise, signals and amplifiers","88","02","K4IPV",77,"Feb 88"
5,"Practically speaking: non-ideal linear IC amplifiers typical problems","88","07","K4IPV",72,"Jul 88"
5,"Practically speaking: Overview of op amps- part 1","88","11","K4IPV",100,"Nov 88"
5,"Practically speaking: overview of op amps- part 2","88","12","K4IPV",83,"Dec 88"
5,"Practically speaking: parts sources","86","11","K4IPV",78,"Nov 86"
5,"Precision high-voltage dc regulator","88","08","AG6K",75,"Aug 88"
5,"Printed circuit layout and drilling template","82","07","WA4WDL",73,"Jul 82"
5,"Printed circuits without printing","70","11","W4ZG",62,"Nov 70"
5,"Printed-circuit boards, cleaning (HN)","71","03","W5BVF",66,"Mar 71"
5,"Printed-circuit boards, how to clean","76","09","K2PMA",56,"Sep 76"
5,"Printed-circuit boards, how to make","73","04","K4EEU",58,"Apr 73"
5,"Printed-circuit boards, low-cost","71","08","W6CMQ",44,"Aug 71"
5,"Printed-circuit boards, low-cost","75","01","W8YFB",16,"Jan 75"
5,"Printed-circuit boards, practical phototabrication of","71","09","Hutchinson",6,"Sep 71"
5,"Printed-circuit labels (HN)","70","10","WA4WDK",76,"Oct 70"
5,"Printed-circuit standards (HN)","74","04","W6JVE",58,"Apr 74"
5,"Printed-circuit tool (HN)","73","05","W2GZ",74,"May 73"
5,"Printed-circuits, simple method for (HN)","78","04","W4MTD",51,"Apr 78"
5,"Professional look, for that","68","03","VE3GFN",74,"Mar 68"
5,"Protect Your Amateur Station from Lightning","89","09","KY9L",25,"Sep 89"
5,"Punching aluminum panels (HN)","68","06","W7DIM",57,"Jun 68"
5,"Quick fix for soldering irons (HN)","84","04","W2YW",62,"Apr 84"
5,"Rack and panel construction","68","06","W7OE",48,"Jun 68"
5,"Rack construction, a new approach","70","03","K1EUJ",36,"Mar 70"
5,"Rectifier terminal strip (HN)","70","04","W5PKK",80,"Apr 70"
5,"Reflected power limiter","84","07","K4KI",63,"Jul 84"
5,"Rejuvenating transmitting tubes with thoriated-tungsten filaments (HN)","78","08","W6NIF",80,"Aug 78"
5,"Remote baselsimplex phone patch controller","88","08","AA4NX and KK4LA",54,"Aug 88"
5,"Remote Control Switching System","89","10","VK2WD",62,"Oct 89"
5,"Remote Driver/Controller for a Two-antenna System","89","04","NH6N",79,"Apr 89"
5,"Restoring panel lettering (HN)","73","01","W8CL",69,"Jan 73"
5,"Rewinding transformers with CAD","87","03","W6WTU",74,"Mar 87"
5,"RF filters, Build narrowband","86","03","WB4EHS",10,"Mar 86"
5,"RF filters, Build narrowband","86","06","Short circuit",36,"Jun 86"
5,"Screwdriver, adjustment (HN)","71","01","WA0KGS",66,"Jan 71"
5,"Set screws, taming (HN)","82","03","W5PGG",64,"Mar 82"
5,"Silk screen techniques, make your own board using","84","11","W3QOM",83,"Nov 84"
5,"Silver plating (letters)","77","11","WA0AGD",94,"Nov 77"
5,"Silver plating for the amateur","68","12","W4KAE",62,"Dec 68"
5,"Silver plating made easy","77","02","WA9HUV",42,"Feb 77"
5,"Silverplating, safe, sensible","85","02","K9EYY",29,"Feb 85"
5,"Simple DC Amplifier for Your Meter","89","06","W0JF",10,"Jun 89"
5,"Simple Infrared Detector, A (HN)","89","06","K1ZJH",27,"Jun 89"
5,"Simple low-cost comb generator frequency calibrator","88","07","Martin, Lorry",78,"Jul 88"
5,"Simple receivers from complex ICs","88","11","W6VEH",10,"Nov 88"
5,"Small parts tray (HN)","68","06","W2GA",58,"Jun 68"
5,"Solar power for your ham station","84","12","NH6N",14,"Dec 84"
5,"Solder dispenser, simple (HN)","68","09","W2KID",76,"Sep 68"
5,"Soldering aluminum (HN)","72","05","ZE6JP",67,"May 72"
5,"Soldering fluxes (HN)","68","06","K3HNP",57,"Jun 68"
5,"Soldering tip (HN)","70","02","Lawyer",68,"Feb 70"
5,"Soldering tip cleaner (HN)","76","10","W3HUC",79,"Oct 76"
5,"Soldering tips","76","05","WA4MTH",15,"May 76"
5,"Structural evaluation of Yagi elements","88","12","K5IU",29,"Dec 88"
5,"Superhet coilset, design with a microcomputer","84","11","Sterrenburg, F.A.S.",113,"Nov 84"
5,"The Guerri report: pc boards","86","09","W6MGI",109,"Sep 86"
5,"Thumbwheel switch modification(HN)","74","03","VE3GDX",56,"Mar 74"
5,"Tilt your rig (HN)","68","06","WA4NED",58,"Jun 68"
5,"Toroids, plug-in (HN)","72","01","K8EEG",60,"Jan 72"
5,"Transfer letters (HN)","76","10","WA2TGL",78,"Oct 76"
5,"Transformers, repairing","69","03","W6NIF",66,"Mar 69"
5,"Transmit Control for Mobile Operation","89","11","G4CLF",24,"Nov 89"
5,"Trimmers (HN)","69","11","W5LHG",76,"Nov 69"
5,"Tuning indicator for RTTY and packet radio","88","09","W0HZR",65,"Sep 88"
5,"Turns per inch from wire size (HN)","83","12","K8UR",97,"Dec 83"
5,"Two in one: trace doubler for CRO, and square wave and pulse generator (HN)","88","12","Tseng Liao",26,"Dec 88"
5,"Two in one: trace doubler for CRO, and square wave and pulse generator (HN)","90","01","Short circuit",26,"Jan 90"
5,"Uhf coax connectors (HN)","72","09","W0LCP",70,"Sep 72"
5,"Uhf hardware (HN)","70","10","W6CMQ",76,"Oct 70"
5,"Ultra Low Power Four-digit Sequence Touch Tone Decoder","89","12","WA4ADG",30,"Dec 89"
5,"Ultra Low Power Four-digit Sequence Touch Tone Decoder","90","03","Short circuit",87,"Mar 90"
5,"Understanding and using 723 Voltage Regulators","89","03","K3OF",42,"Mar 89"
5,"Underwriter's knot (HN)","69","05","W1DTY",69,"May 69"
5,"Universal analog breadboard","86","06","Gruchalla, Michael",85,"Jun 86"
5,"Variable Gain 160-Meter Preamp","89","10","KD9SV",46,"Oct 89"
5,"Vectorboard toot (HN)","72","04","WA1KWJ",70,"Apr 72"
5,"Volume controls, noisy, temporary fix (HN)","74","08","W9JUV",62,"Aug 74"
5,"Watercooling the 2C39","69","06","K6MYC",30,"Jun 69"
5,"Wideband Frequency Analyzer","89","11","AA4FB",9,"Nov 89"
5,"Wire-wound potentiometer repair (HN)","78","02","W4ATE",77,"Feb 78"
5,"Wiring and grounding","69","06","W1EZT",44,"Jun 69"
5,"Workbench, electronic","70","10","W1EZT",50,"Oct 70"
5,"ZX-81/TS1000 controller: new use for old computers","86","12","N9NB",31,"Dec 86"
6,"$40 Digital Voice Storage ID'er","89","02","WA4ADG",10,"Feb 89"
6,"220-MHz 9600-Baud Data Radio System for Packet","89","02","W2DUC",67,"Feb 89"
6,"A New Addition for your TNC","89","12","K9MLD",72,"Dec 89"
6,"Add a digital readout to the "poor man's spectrum analyzer"","88","09","WA2PZO",84,"Sep 88"
6,"Amateur FSK: A spectral analysis","86","12","WA6NCX",42,"Dec 86"
6,"AMTOR, AX.25, and HERMES: a performance analysis of three systems","85","12","W9JD",63,"Dec 85"
6,"AMTOR, AX.25, and HERMES: a performance analysis of three systems","86","05","Comments, G3PLX",9,"May 86"
6,"Annunciator bell for the Kantronics KPC2","86","08","K1ZJH",22,"Aug 86"
6,"Artificial Intelligence Applications In Amateur Radio","89","10","NULN",30,"Oct 89"
6,"Audio filter design, computer-aided","85","10","KE2J",15,"Oct 85"
6,"AUTOTRAK, A simple rotor interface board for the C-64, VIC-20, etc","87","12","K7NH",10,"Dec 87"
6,"Basic rules and gates","79","01","Anderson, Leonard H.",76,"Jan 79"
6,"Build a QSO "beeper"","88","01","KF6CU",38,"Jan 88"
6,"Building a Digital Filter","89","04","NB9K",9,"Apr 89"
6,"CAT control system for the Yaesu FT-757GX","87","11","SM6CPI",26,"Nov 87"
6,"Commodore 64, $100 printer (HN)","85","08","W2QLI",86,"Aug 85"
6,"Computer control of ICOM R-71, 271, 471, and 751 radios","86","04","NG6Q",47,"Apr 86"
6,"Continuous phase tones","87","08","Comments: G3VMR",6,"Aug 87"
6,"Counters and weights","79","08","Anderson, Leonard H.",66,"Aug 79"
6,"Decoding data signals","88","12","WB4GCS",60,"Dec 88"
6,"Deluxe logic probe","87","01","M. Wilde",74,"Jan 87"
6,"Digi-Keyer","89","10","AB4DP",68,"Oct 89"
6,"Digiscope","79","06","WB0CLH",50,"Jun 79"
6,"Digital can do more, Comments","86","03","KA4JFO",9,"Mar 86"
6,"Digital clock, build a fail-safe","85","10","K1MC",54,"Oct 85"
6,"Digital frequency readout using the Commodore 64","85","11","W3NNL",83,"Nov 85"
6,"Digital HF radio: a sampling of techniques","85","04","KA2WEU/DJ2LR",19,"Apr 85"
6,"Digital HF radio: a sampling of techniques","85","05","Short circuit",121,"May 85"
6,"Digital signal processing, part 1: the fundamentals","90","04","NU1N",24,"Apr 90"
6,"Digital techniques: gate arrays for control","80","01","Anderson, Leonard H.",82,"Jan 80"
6,"Digital techniques: inside a phase-frequency detector","82","09","Anderson, Leonard H.",28,"Sep 82"
6,"Digital techniques: shocking truths about semiconductors","82","10","Anderson, Leonard H.",36,"Oct 82"
6,"Digital voice storage in the ham shack","90","03","WA4ADG",56,"Mar 90"
6,"Digital voice storage in the ham shack","90","05","Short circuit",81,"May 90"
6,"Digital-circuit problems, avoiding built-in, part one","81","09","W1BG",43,"Sep 81"
6,"Digital-circuit problems, avoiding built-in, part one","81","12","Comments VE2QO",6,"Dec 81"
6,"Digital-circuit problems, avoiding built-in, part two","81","10","W1BG",50,"Oct 81"
6,"Digital-circuit problems, avoiding built-in, part two","81","12","Comments VE2QO",6,"Dec 81"
6,"Direct synthesis VFO","88","09","W7SX",10,"Sep 88"
6,"Down counters","79","09","Anderson, Leonard H.",72,"Sep 79"
6,"DTMF controller for repeaters","85","09","WB4FXD",47,"Sep 85"
6,"DTMF Group Call Decoder","89","03","AA4NX",53,"Mar 89"
6,"DTMF tone signaling circuit","88","09","WV6A",42,"Sep 88"
6,"Dynistor, the","68","04","W6GXN",49,"Apr 68"
6,"Electro-Braille Transducers and their Application","89","03","I4MK",59,"Mar 89"
6,"Elmer's notebook: an introduction to AMTOR","87","09","W1SL",101,"Sep 87"
6,"Elmer's notebook: an introduction to digital communications","87","07","W1SL",92,"Jul 87"
6,"Elmer's notebook: packet radio","87","10","W1SL",100,"Oct 87"
6,"Finding the Source of Computer-generated interference","89","09","KBTM",30,"Sep 89"
6,"Flip-flop internal structure","79","04","Anderson, Leonard H.",86,"Apr 79"
6,"Frequency synthesis up to 2 GHz","88","04","WA6DYW",22,"Apr 88"
6,"Gate arrays for pattern generation","79","10","Anderson, Leonard H.",72,"Oct 79"
6,"Gate structure and logic families","79","02","Anderson, Leonard H.",66,"Feb 79"
6,"Get on SSTV - with the C-64","86","10","I2CAB, I2AED, ed. K9EI",43,"Oct 86"
6,"Get on SSTV - with the C-64","87","10","Short circuit",97,"Oct 87"
6,"Going Digital","89","01","NH6N",20,"Jan 89"
6,"HP-11 serial loop","84","04","Martin, Vaughn D.",101,"Apr 84"
6,"Improving the WB3CEH programmable callsign identifier (HN)","87","09","KL7XO",82,"Sep 87"
6,"Making waves","82","03","W6HDM",44,"Mar 82"
6,"Multivibrators and analog input interfacing","79","06","Anderson, Leonard H.",78,"Jun 79"
6,"Packet board update","87","01","Comments: VE3LNY",6,"Jan 87"
6,"Packet radio and area networking","84","12","WB3JZO",38,"Dec 84"
6,"Packet radio primer","85","12","WA1FHB",30,"Dec 85"
6,"Packet radio TNC for the IBM PC","86","08","VE3LNY",10,"Aug 86"
6,"Packet radio, automatic frequency and deviation tester","85","12","WB2OSZ",41,"Dec 85"
6,"Packet radio, introduction to","79","06","VE2BEN",64,"Jun 79"
6,"Packet radio: part1","83","07","KV7D, KV7B",14,"Jul 83"
6,"Packet radio: part2","83","08","KV7D, KV7B, WA7GXD",18,"Aug 83"
6,"Packet radio: the software 	approach","84","09","W4UCH",63,"Sep 84"
6,"PL tone generator, a programmable","84","04","WB0VSZ",51,"Apr 84"
6,"PL tone generator, a programmable","84","05","Short circuit",125,"May 84"
6,"Practically Speaking: Getting to know the Logic Families- pt 1: TTL","89","12","K4IPV",34,"Dec 89"
6,"Practically speaking: using the digital frequency counter- some pitfalls","88","04","K4IPV",47,"Apr 88"
6,"Propagation delay and flip-flops","79","03","Anderson, Leonard H.",82,"Mar 79"
6,"RAM drive for packet radio","87","12","AD1B",44,"Dec 87"
6,"RTTY reader, interrupt-driven","84","09","KN4L",72,"Sep 84"
6,"Run RTTY on your Timex","85","04","NU4V",110,"Apr 85"
6,"Run RTTY on your VIC-20","85","04","W5TRS",120,"Apr 85"
6,"Satellite tracker, digitally-controlled","85","09","KA8OBL",102,"Sep 85"
6,"Self-gating the 82S90/74S196 decade counter (HN)","79","05","W9LL",82,"May 79"
6,"Simple PROM Programmer, A","89","03","V4V6A",81,"Mar 89"
6,"Smith Chart impedance matching on your Commodore 64","84","10","WA9GFR",120,"Oct 84"
6,"Software piracy (letter)","84","09","Forsyth, Mike",8,"Sep 84"
6,"Spread spectrum and digital communication techniques: a primer","85","12","N9NB",13,"Dec 85"
6,"Station Control Node Expand Your Versatility with SCN","89","03","WAQRJT",23,"Mar 89"
6,"Synthesizers, VHF and UHF, design of digital components","82","07","G4CLF",26,"Jul 82"
6,"Talking digital clock","79","10","K9KV",30,"Oct 79"
6,"The Guerri report","86","01","W6MGI",124,"Jan 86"
6,"The Guerri report","86","04","W6MGI",125,"Apr 86"
6,"The Guerri report: computer technology","84","11","W6MGI",54,"Nov 84"
6,"The Guerri report: computer technology","84","12","Short circuit",8,"Dec 84"
6,"The Guerri report: signal processing","84","12","W6MGI",156,"Dec 84"
6,"Thumbwheel frequency selector for the Yaesu FT-757GX","87","11","KA9SNF",33,"Nov 87"
6,"True frequency digital readout for the HW-101","87","01","NU4F",8,"Jan 87"
6,"True frequency digital readout for the HW-101","87","08","Short circuit",41,"Aug 87"
6,"Two-Loop 10-Hz Step 40-70 MHz Synthesizer","89","01","PY1LL & C Mathias",24,"Jan 89"
6,"Ultra Low Power Four-digit Sequence Touch Tone Decoder","89","12","WA4ADG",30,"Dec 89"
6,"Ultra Low Power Four-digit Sequence Touch Tone Decoder","90","03","Short circuit",87,"Mar 90"
6,"Using an RTTY terminal unit with the Heathkit HD4040 TNC","86","08","AA8V",59,"Aug 86"
6,"VIC-20 printer (HN)","84","09","W2QLI",88,"Sep 84"
7,"1929-1941,the Golden years of amateur radio","76","04","W6SAI",34,"Apr 76"
7,"1979 world administrative radio conference","76","02","W6APW",48,"Feb 76"
7,"Alarm, burglar-proof (HN)","75","12","Eisenbrandt",56,"Dec 75"
7,"Automatic Packet Beacon Tracker and Monitor","89","08","W4GBB",66,"Aug 89"
7,"Backscatter: amateur radio growth?","90","03","W6SAI",4,"Mar 90"
7,"Backscatter: Amateur Radio Licensing Fees","89","10","NXIG",6,"Oct 89"
7,"Backscatter: for sale: the 20-meter amateur band ...","90","05","NX1G",4,"May 90"
7,"Backscatter: Glasnost and Amateur Radio","89","02","N1ACH",4,"Feb 89"
7,"Backscatter: Juxtaposition of Technologies","89","11","NXIG",4,"Nov 89"
7,"Backscatter: life, liberty, and the right to privacy","90","04","NX1G",4,"Apr 90"
7,"Backscatter: More cause for Thought","89","09","NXIG",4,"Sep 89"
7,"Backscatter: no new novices? no way!","90","06","W9JUV",9,"Jun 90"
7,"Backscatter: No-Code Revisited","89","03","NIACH",4,"Mar 89"
7,"Backscatter: No-Code Survey Results","89","06","N1ACH",4,"Jun 89"
7,"Backscatter: Ode to the Death of PRB-3","89","08","N1ACH",4,"Aug 89"
7,"Backscatter: somewhere over the horizon (radar, that is)","90","02","NX1G",4,"Feb 90"
7,"Backscatter: The FCC and 20-Meter Third Party Traffic","90","01","NX1G",4,"Jan 90"
7,"Backscatter: The More Things Change..","89","07","N1ACH",4,"Jul 89"
7,"Binding 1970 issues of ham radio (HN)","71","02","W1DHZ",72,"Feb 71"
7,"Brass pounding on wheels","75","03","K6QD",58,"Mar 75"
7,"Catalina wireless, 1902","70","04","W6BLZ",32,"Apr 70"
7,"DXer's Diary","81","03","W9KNI",18,"Mar 81"
7,"DXer's Diary","81","04","W9KNI",26,"Apr 81"
7,"DXer's Diary","81","06","W9KNI",22,"Jun 81"
7,"DXer's Diary","81","08","W9KNI",60,"Aug 81"
7,"DXer's Diary","81","09","Comments",6,"Sep 81"
7,"DXer's Diary","81","12","W9KNI",70,"Dec 81"
7,"Early wireless stations","68","10","W6BLZ",64,"Oct 68"
7,"Electromagnetic jargon generator, state-of-the-art","85","04","N6TX",75,"Apr 85"
7,"Electronic bugging","68","06","K2ZSQ",70,"Jun 68"
7,"Fire protection in the ham shack","71","01","Darr",54,"Jan 71"
7,"First wireless in Alaska","73","04","W6BLZ",48,"Apr 73"
7,"From Amateur to professional","81","08","KI2U",54,"Aug 81"
7,"Hallicrafters history","79","11","W6SAI",20,"Nov 79"
7,"Hallicrafters story (letter)","80","05","K0ADM",6,"May 80"
7,"Hallicrafters story (letter)","80","05","W1TVN",6,"May 80"
7,"Hallicrafters story (letter)","80","09","WA2JVD",6,"Sep 80"
7,"Ham Radio sweepstakes winners, 1972","72","07","W1NLB",58,"Jul 72"
7,"Ham Radio sweepstakes winners, 1973","73","07","W1NLB",68,"Jul 73"
7,"Ham Radio sweepstakes winners, 1975","75","07","W1NLB",54,"Jul 75"
7,"Ham radio techniques","81","09","W6SAI",32,"Sep 81"
7,"Ham radio techniques","81","10","W6SAI",42,"Oct 81"
7,"Ham radio techniques (01/83)","83","01","W6SAI",66,"Jan 83"
7,"Ham radio techniques (02/83)","83","02","W6SAI",77,"Feb 83"
7,"Ham radio techniques (03/83)","83","03","W6SAI",47,"Mar 83"
7,"Ham radio techniques (04/83)","83","04","W6SAI",52,"Apr 83"
7,"Ham radio techniques (04/83)","83","12","Comments, W6DKZ",8,"Dec 83"
7,"Ham radio techniques (05/83)","83","05","W6SAI",52,"May 83"
7,"Ham radio techniques (06/83)","83","06","W6SAI",46,"Jun 83"
7,"Ham radio techniques (07/83)","83","07","W6SAI",42,"Jul 83"
7,"Ham radio techniques (08/83)","83","08","W6SAI",40,"Aug 83"
7,"Ham radio techniques (09/83)","83","09","W6SAI",41,"Sep 83"
7,"Ham radio techniques (10/83)","83","10","W6SAI",64,"Oct 83"
7,"Ham Radio techniques: "the greatest little magazine in the world"","88","02","W6SAI",68,"Feb 88"
7,"Ham radio techniques: 160-meter band","81","05","W6SAI",46,"May 81"
7,"Ham radio techniques: amateur radio 1941","81","08","W6SAI",30,"Aug 81"
7,"Ham radio techniques: amateur radio, 1933","81","06","W6SAI",41,"Jun 81"
7,"Ham radio techniques: antenna tuners","81","07","W6SAI",30,"Jul 81"
7,"Ham radio techniques: earth-moon-earth","81","02","W6SAI",40,"Feb 81"
7,"Ham radio techniques: Ever work a W10?","87","02","W6SAI",43,"Feb 87"
7,"Ham radio techniques: Ever work a W10?","87","04","Short circuit",50,"Apr 87"
7,"Ham Radio Techniques: May perambulation","90","05","W6SAI",56,"May 90"
7,"Ham radio techniques: more about moonbounce","81","03","W6SAI",34,"Mar 81"
7,"Ham radio techniques: radio-frequency interference","81","12","W6SAI",30,"Dec 81"
7,"Ham radio techniques: radio-frequency Interference","81","11","W6SAI",34,"Nov 81"
7,"Ham radio techniques: ten-meter band","81","04","W6SAI",38,"Apr 81"
7,"Ham Radio Techniques: The "Invention of Radio"","89","03","W6SAI",17,"Mar 89"
7,"Ham Radio techniques: the year was 1923...","88","01","W6SAI",89,"Jan 88"
7,"Ham radio techniques: triband Yagi beam for 20, 15, and 10 meters","81","01","W6SAI",68,"Jan 81"
7,"Ham radio techniques: triband Yagi beam for 20, 15, and 10 meters","81","11","Short circuit",84,"Nov 81"
7,"Ham Radio Techniques: WARC 1992","90","06","W6SAI",35,"Jun 90"
7,"Ham radio techniques: Xingiang Province, the last frontier","87","04","W6SAI",55,"Apr 87"
7,"Hellschreiber, a rediscovery","79","12","PA0CX",28,"Dec 79"
7,"How to be DX","68","08","W4NXD",58,"Aug 68"
7,"Interview with Dr. Kenneth Davies","83","01","K2RR",28,"Jan 83"
7,"James R. Fisk memorial","80","06","W1XU",2,"Jun 80"
7,"James R. Fisk, W1HR - some reflections","80","06","W6NIF",6,"Jun 80"
7,"Jammer problem, solutions for","79","04","UX3PU",56,"Apr 79"
7,"Jammer problem, solutions for","79","09","Comments",6,"Sep 79"
7,"Jim Fisk, tribute to, publisher's log","80","06","W1NLB",8,"Jun 80"
7,"Jim, a tug at your memory","81","05","W4VT",28,"May 81"
7,"Nostalgia with a vengance","72","04","W6HDM",28,"Apr 72"
7,"Observation and opinion","81","07","W9KNI",6,"Jul 81"
7,"One hundred years of electric waves","88","08","KR6A",22,"Aug 88"
7,"Photographic illustrations","69","12","WA4GNW",72,"Dec 69"
7,"Q signals (letter)","83","02","W4MB",8,"Feb 83"
7,"QSL return, statistics on","68","12","WB6IUH",50,"Dec 68"
7,"Radio addiction: case history of an enthusiast","88","01","W7SX",52,"Jan 88"
7,"Reflections: Novice enhancement and the future of amateur radio","88","06","W9JUV",6,"Jun 88"
7,"Reflections: Returning the spectrum to chaos courtesy of the FCC (GD 87-389)","88","02","W9JUV",6,"Feb 88"
7,"Reinartz, John L., father of shortwave radio","81","08","WA6CBQ",10,"Aug 81"
7,"Reminisces of old-time radio","71","04","K4NW",40,"Apr 71"
7,"Secret society, the","68","05","W4NXD",82,"May 68"
7,"Shopping for parts by mail","81","07","W8FX",16,"Jul 81"
7,"Shopping for parts by mail","81","12","Comments K1THP",6,"Dec 81"
7,"Ten commandments for technicians","76","10","feature",58,"Oct 76"
7,"The arduous realization","87","12","W7SX",29,"Dec 87"
7,"Tune in on the world","81","06","WA4PYQ",12,"Jun 81"
7,"Use your old magazines","70","01","Foster",52,"Jan 70"
7,"What is it?","68","05","WA1ABP",84,"May 68"
7,"Wireless Point Loma","69","04","W6BLZ",54,"Apr 69"
7,"Writing the Technical Article","89","01","K4IPV",43,"Jan 89"
8,"Automatically switched half-octave filters: part 1","88","02","WB3JZO and Watkins, Lee R.",10,"Feb 88"
8,"Automatically switched half-octave filters: part 2","88","03","WB3JZO and Watkins, Lee R.",29,"Mar 88"
8,"Building A Digital Station","89","04","NB9K",9,"Apr 89"
8,"Ham Radio Techniques: "Son of Woodpecker"","89","02","W6SAI",18,"Feb 89"
8,"Optimizing the OF-1A Audio Filter","89","12","VE7BS",38,"Dec 89"
8,"Simple VHF/UHF multiple quarter-wave filters","87","09","WA3EWT",37,"Sep 87"
8,"Switchable bandwidth crystal filter","90","02","N2DCH",22,"Feb 90"
8,"Top-down filter design","87","01","VE5FP",41,"Jan 87"
9,"144-MHz 5/8-wavelength, vertical antenna for mobile","76","05","K4LPQ",42,"May 76"
9,"144-MHz digital synthesizers, readout display","76","07","WB4TZE",47,"Jul 76"
9,"144-MHz fm exciter, high performance","76","08","WA2GCF",10,"Aug 76"
9,"144-MHz mobile antenna (HN)","77","03","W2EUQ",80,"Mar 77"
9,"144-MHz synthesizer, direct output","77","08","WB2CPA",10,"Aug 77"
9,"144-MHz synthesizer, direct output (letter)","78","01","WB6JPI",90,"Jan 78"
9,"144-MHz vertical mobile antennas, 1/4 and 5/8 wavelength, test data on","76","05","W2LTJ, W2CQH",46,"May 76"
9,"144-MHz, 5/8-wavelength vertical antenna","76","03","W1RHN",50,"Mar 76"
9,"220 MHz frequency synthesizer","74","12","W6GXN",8,"Dec 74"
9,"450-MHz preamplifier and converter","75","07","WA2GCF",40,"Jul 75"
9,"Add fm to your receiver (weekender)","81","03","K3NXU",74,"Mar 81"
9,"Amateur fm, close look at","79","08","W2YE",46,"Aug 79"
9,"Amateur vhf fm operation","68","06","W6AYZ",36,"Jun 68"
9,"Antenna and control-link calculations for repeater licensing","73","11","W7PUG",58,"Nov 73"
9,"Antenna and control-link calculations for repeater licensing","73","12","Short circuit",59,"Dec 73"
9,"Antenna design for omnidirectional repeater coverage","79","09","N9SN",20,"Sep 79"
9,"Antenna, 5/8 wavelength two-meter, build from CB mobile whips (HN)","74","06","WB4WSU",67,"Jun 74"
9,"Antenna, 5/8-wavelength, two-meter","74","07","K6KLO",40,"Jul 74"
9,"Antenna, two-meter fm (HN)","71","05","WB6KYE",64,"May 71"
9,"Antennas, simple, for two-meter fm","73","05","WA3NFW",30,"May 73"
9,"Audio-amplifier and squelch unit","68","08","W6AJF",36,"Aug 68"
9,"Automatically controlled access to open repeaters","74","03","W8GRG",22,"Mar 74"
9,"Autopatch system for vhf fm repeaters","74","07","W8GRG",32,"Jul 74"
9,"Autopatch, simplex","83","01","WB6GTM",42,"Jan 83"
9,"Base station, two-meter fm","73","08","W9JTQ",22,"Aug 73"
9,"Carrier-operated relay","72","11","K0PHF, WA0UZO",58,"Nov 72"
9,"Carrier-operated relay and call monitor","71","06","VE4RE",22,"Jun 71"
9,"Cavity filter, 144-MHz","73","12","W1SNN",22,"Dec 73"
9,"Channel scanner","71","08","W2FPP",29,"Aug 71"
9,"Channels, three from two (HN)","71","06","VE7ABK",68,"Jun 71"
9,"Charger, fet-controlled for nicad batteries","75","08","WA0UYK",46,"Aug 75"
9,"Collinear antenna for two meters, nine-element","72","05","W6RJO",12,"May 72"
9,"Collinear array for two meters, 4-element","71","05","W86KGF",6,"May 71"
9,"Command function debugging circuit","78","06","WA7HFY",84,"Jun 78"
9,"Continuous tuning for fm converters (HN)","70","12","W1DHZ",54,"Dec 70"
9,"Control head, customizing","71","04","VE7ABK",28,"Apr 71"
9,"Converting low-band mobile antenna to 144 MHz (HN)","77","05","K7ARR",90,"May 77"
9,"Decoder, control function","77","03","WA9FTH",66,"Mar 77"
9,"Detectors, fm, survey of","76","06","W6GXN",22,"Jun 76"
9,"Deviation measurement (letter)","71","05","K5ZBA",68,"May 71"
9,"Deviation measurements","72","02","W3FQJ",52,"Feb 72"
9,"Deviation meter (HN)","70","12","VE7ABK",58,"Dec 70"
9,"Deviation, measuring","79","01","N6UE",20,"Jan 79"
9,"Digital scanner for 2-meter synthesizers","78","02","K4GOK",56,"Feb 78"
9,"Digital touch-tone encoder for vhf fm","75","04","W7FBB",28,"Apr 75"
9,"Discriminator, quartz crystal","75","10","WA0JYK",67,"Oct 75"
9,"Distortion in fm systems","69","08","W5JJ",26,"Aug 69"
9,"DTMF controller for repeaters","85","09","WB4FXD",47,"Sep 85"
9,"Encoder, combined digital and burst","69","08","K8AUH",48,"Aug 69"
9,"European vhf-fm repeaters","76","09","SM4GL",80,"Sep 76"
9,"External frequency programmer (HN)","79","04","WB9VWM",92,"Apr 79"
9,"Filter, 455-kHz for fm","72","03","WA0JYK",22,"Mar 72"
9,"FM advantage","84","09","WA9GDZ6",38,"Sep 84"
9,"Fm demodulator using the phase-locked-loop","78","09","KL7IPS",74,"Sep 78"
9,"Fm demodulator using the phase-locked-loop","79","04","Comments Anderson, Leonard H.",6,"Apr 79"
9,"Fm demodulator, TTL","72","11","W3FQJ",66,"Nov 72"
9,"Fm receiver frequency control (letter)","71","04","W3AFN",65,"Apr 71"
9,"FM repeater separation : 20 kHz, Yes, 15 kHz, No","85","08","WD5IBS",12,"Aug 85"
9,"Fm techniques and practices for vhf amateurs","69","09","W6SAI",8,"Sep 69"
9,"Fm techniques and practices for vhf amateurs","70","06","Short circuit",79,"Jun 70"
9,"Fm transmitter, solid-state two-meter","71","07","W6AJF",14,"Jul 71"
9,"Fm transmitter, Sonobaby, 2 meter","71","10","WA0UZO",8,"Oct 71"
9,"Fm transmitter, Sonobaby, 2 meter","71","12","Short circuit",96,"Dec 71"
9,"Fm transmitter, Sonobaby, 2 meter","72","10","Crystal deck for Sonobaby",26,"Oct 72"
9,"Folded whip antenna for vhf mobile - Weekender","79","04","WB2IFV",50,"Apr 79"
9,"Forget memory (Ni-Cd discussion)","83","01","K0OV",62,"Jan 83"
9,"Frequency meter, two-meter fm","71","01","W4JAZ",40,"Jan 71"
9,"Frequency meter, two-meter fm","71","04","Short circuit",72,"Apr 71"
9,"Frequency synthesizer sidebands, filter reduces (HN)","77","06","K1PCT",80,"Jun 77"
9,"Frequency synthesizer, for two-meter fm","73","07","WB4FPK",34,"Jul 73"
9,"Frequency synthesizer, inexpensive all-channel, for two-meter fm","73","08","W0OA",50,"Aug 73"
9,"Frequency synthesizer, inexpensive all-channel, for two-meter fm","74","06","Correction (letter)",65,"Jun 74"
9,"Frequency synthesizers, 600 kHz offset for (HN)","78","07","K6KLO",96,"Jul 78"
9,"Frequency-synthesizer, one-crystal for two-meter fm","73","09","W0MV",30,"Sep 73"
9,"High performance vhf fm transmitter","76","08","WA2GCF",10,"Aug 76"
9,"I-f system, multimode","71","09","WA2IKL",39,"Sep 71"
9,"IC-230 modification (HN)","77","03","W8PEY",80,"Mar 77"
9,"IC-255A switching circuit (HN)","83","01","WB6IQV",70,"Jan 83"
9,"IC-255A switching circuit (HN)","83","06","Comments, WA4MZZ",8,"Jun 83"
9,"Identifier, programmable repeater","69","04","W6AYZ",18,"Apr 69"
9,"Identifier, programmable repeater","69","07","Short circuit",76,"Jul 69"
9,"Improved repeater/transmitter noise performance (HN)","86","04","K1ZJH",104,"Apr 86"
9,"Indicator, sensitive rf","73","04","WB9DNI",38,"Apr 73"
9,"Interface problems, fm equipment (HN)","75","06","W9DPY",58,"Jun 75"
9,"Interference, scanning receiver (HN)","72","09","K2YAH",70,"Sep 72"
9,"Linear translators","83","09","WB6JNN",14,"Sep 83"
9,"Logic oscillator for multi-channel crystal control","73","06","W1SNN",46,"Jun 73"
9,"Magnet mount antenna, portable (HN)","76","05","WB2YYU",67,"May 76"
9,"Microprocessor repeater controller","83","04","KB5F",56,"Apr 83"
9,"Mobile antenna, magnet-mount","75","09","W1HCI",54,"Sep 75"
9,"Mobile antennas, vhf, comparison of","77","05","W4MNW",52,"May 77"
9,"Mobile operation with the Touch-Tone pad","72","08","W0LPQ",58,"Aug 72"
9,"Mobile operation with the Touch-Tone pad","72","12","Correction",90,"Dec 72"
9,"Mobile operation with the Touch-Tone pad","73","04","Modification (letter)",72,"Apr 73"
9,"Mobile rig, protecting from theft (C&T)","76","04","W1DTY",42,"Apr 76"
9,"Modulation standards for vhf fm","70","06","W6TEE",16,"Jun 70"
9,"Monitor receivers, two-meter fm","74","04","WB5EMI",34,"Apr 74"
9,"Motorola channel elements","72","12","WB4NEX",32,"Dec 72"
9,"Motorola fm receiver mods (HN)","71","08","VE4RE",60,"Aug 71"
9,"Motorola P-33 series, improving the","71","02","WB2AEB",34,"Feb 71"
9,"Motorola voice commander, improving","70","10","W0DKU",70,"Oct 70"
9,"Motrac receivers (letter)","71","07","K5ZBA",69,"Jul 71"
9,"Multimode transceivers, fm-ing on uhf (HN)","77","11","W6SAI",98,"Nov 77"
9,"Narrow-band fm system. using ICs in","68","10","W6AJF",30,"Oct 68"
9,"Ni-cad charger, any-state","79","12","WA6TBC",66,"Dec 79"
9,"Phase modulation principles and techniques","75","07","VE2BEN",28,"Jul 75"
9,"Phase modulation principles and techniques","75","12","Correction",59,"Dec 75"
9,"Phase-locked loop, tunable, 28 and 50 MHz","73","01","W1KNI",40,"Jan 73"
9,"Power amplifier, rf 220-MHz fm","73","09","K7JUE",6,"Sep 73"
9,"Power amplifier, rf, 144 MHz","73","12","Hatchett",6,"Dec 73"
9,"Power amplifier, rf, 144-MHz fm","73","04","W4CGC",6,"Apr 73"
9,"Power amplifier, two-meter fm, 10-watt","74","01","W1DTY",67,"Jan 74"
9,"Power supply, regulated ac for mobile fm equipment","73","06","WA8TMP",28,"Jun 73"
9,"Preamplifier for handi-talkies","78","10","WB2IFV",89,"Oct 78"
9,"Preamplifier, two meter","72","03","WA2GCF",25,"Mar 72"
9,"Preamplifier, two meter","74","06","W8BBB",36,"Jun 74"
9,"Private call system for vhf fm","77","09","WA6TTY",62,"Sep 77"
9,"Private call system for vhf fm (HN)","78","02","W9ZTK",77,"Feb 78"
9,"Private-line, adding to Heath HW-202","74","06","WA8AWJ",53,"Jun 74"
9,"Push-to-talk for Styleline telephones","71","12","W1DRP",18,"Dec 71"
9,"Receiver alignment techniques, vhf fm","75","08","K4IPV",14,"Aug 75"
9,"Receiver for six and two meters, multichannel fm","74","02","W1SNN",54,"Feb 74"
9,"Receiver for two meter, fm","70","09","W9SEK",22,"Sep 70"
9,"Receiver for two meter, fm","71","04","Short circuit",72,"Apr 71"
9,"Receiver isolation, fm repeater (HN)","70","12","W1DTY",54,"Dec 70"
9,"Receiver performance of vacuum-tube vhf-fm equipment, how to improve","76","10","W0GGV",52,"Oct 76"
9,"Receiver performance, comparison of","72","08","VE7ABK",68,"Aug 72"
9,"Receiver, modular fm communications","69","06","K8AUH",32,"Jun 69"
9,"Receiver, modular fm communications","70","01","Correction",71,"Jan 70"
9,"Receiver, modular, for two-meter fm","72","02","WA2GBF",42,"Feb 72"
9,"Receiver, modular, for two-meter fm","72","07","Added notes",73,"Jul 72"
9,"Receiver, tunable vhf fm","71","11","K8AUH",34,"Nov 71"
9,"Receiver, vhf fm","72","11","WA2GCF",6,"Nov 72"
9,"Receiver, vhf fm","75","11","WA2GCF",8,"Nov 75"
9,"Receiver, vhf fm (letter)","73","05","K8IHO",76,"May 73"
9,"Receivers, setup using hf harmonics (HN)","78","11","K9MM",89,"Nov 78"
9,"Relay, operational-amplifier, for Motorola receivers","73","07","W6GDO",16,"Jul 73"
9,"Remote base, an alternative to repeaters","77","04","WA6LBV, WA6FVC",32,"Apr 77"
9,"Remote repeater programming using a computer and a telephone","86","03","KD9BC",89,"Mar 86"
9,"Repeater antenna beam tilting","83","05","K7NM",29,"May 83"
9,"Repeater antenna beam tilting","83","07","Short circuit",80,"Jul 83"
9,"Repeater channel spacing (letter)","78","01","WB6JPI",90,"Jan 78"
9,"Repeater control with simple timers","72","09","W2FPP",46,"Sep 72"
9,"Repeater control with simple timers","72","12","Correction",91,"Dec 72"
9,"Repeater decoder, multi-function","73","01","WA6TBC",24,"Jan 73"
9,"Repeater etiquette (letter)","83","10","W1OLP",8,"Oct 83"
9,"Repeater installation","73","06","W2FPP",24,"Jun 73"
9,"Repeater Interference: some corrective actions","78","04","W4MB",54,"Apr 78"
9,"Repeater jammers, tracking down","78","09","W4MB",56,"Sep 78"
9,"Repeater kerchunk eliminator","77","10","WB6GTM",70,"Oct 77"
9,"Repeater linking, carrier-operated relay for","76","07","K0PHF",57,"Jul 76"
9,"Repeater problems","71","03","VE7ABK",38,"Mar 71"
9,"Repeater shack temperature, remote checking","77","09","ZL2AMJ",84,"Sep 77"
9,"Repeater transmitter, improving","69","10","W6GDO",24,"Oct 69"
9,"Repeater, high-tech: designing and building an FM translator","85","02","WA6CAY",82,"Feb 85"
9,"Repeater, receiving system degradation","69","05","K5ZBA",36,"May 69"
9,"Repeaters, single-frequency fm","73","11","W2FPP",40,"Nov 73"
9,"Repeaters, speech synthesis for","84","03","N9EE",79,"Mar 84"
9,"Repeaters, three circuits for (HN)","84","01","N9EE",91,"Jan 84"
9,"Reset timer, automatic","74","10","W5ZHV",54,"Oct 74"
9,"S-meter for Clegg 27B (HN)","74","11","WA2YUD",61,"Nov 74"
9,"S-meter, audible, for repeaters","77","03","ZL2AMJ",49,"Mar 77"
9,"Satellite receivers for repeaters","75","10","WA4YAK",64,"Oct 75"
9,"Scanner, two-channel, for repeater monitoring","76","10","W8GRG",48,"Oct 76"
9,"Scanner, vhf receiver","73","02","K2LZG",22,"Feb 73"
9,"Scanning receiver modifications, vhf fm","74","02","WA5WOU",60,"Feb 74"
9,"Scanning receiver, improved for vhf fm","74","11","WA2GCF",26,"Nov 74"
9,"Scanning receivers for two-meter fm","74","08","K4IPV",28,"Aug 74"
9,"Sequential encoder, mobile fm","71","09","W3JJU",34,"Sep 71"
9,"Sequential switching for Touch-Tone repeater control","71","06","W8GRG",22,"Jun 71"
9,"Simple scope monitor for vhf fm","78","08","W1RHN",66,"Aug 78"
9,"Single-frequency conversion, vhf/uhf","75","04","W3FQJ",62,"Apr 75"
9,"Single-sideband fm, introduction to","77","01","W3EJD",10,"Jan 77"
9,"Single-tone decoder","78","08","WA2UMY",70,"Aug 78"
9,"Solar powered repeater design","78","12","WB5REA/WB5RSN",28,"Dec 78"
9,"Speech processor for fm transmitters","82","03","G4CLF, G3RZP",76,"Mar 82"
9,"Squelch circuit, another (HN)","76","10","WB4WSU",78,"Oct 76"
9,"Squelch circuits for transistor radios","75","12","WB4WSU",36,"Dec 75"
9,"Squelch, smart","83","06","W6NRW",37,"Jun 83"
9,"Squelch-audio amplifier for fm receivers","74","09","WB4WSU",68,"Sep 74"
9,"State-of-the-art auto dialer","83","12","K2MWU",21,"Dec 83"
9,"State-of-the-art auto dialer","84","02","Short circuit",10,"Feb 84"
9,"State-of-the-art auto dialer","84","03","Short circuit",10,"Mar 84"
9,"State-of-the-art auto dialer","88","02","Comments, WD9EIA",8,"Feb 88"
9,"Subaudible tone encoders and decoders","78","07","W8GRG",26,"Jul 78"
9,"Synthesized channel scanning","77","03","WA0UZO",68,"Mar 77"
9,"Synthesized two-meter fm transceiver","76","01","W1CMR, K1IJZ",10,"Jan 76"
9,"Synthesized two-meter fm transceiver","76","09","Letter, W5GQV",78,"Sep 76"
9,"Synthesizer, 144 MHz, 800-channel","79","01","K4VB, WA4GJT",10,"Jan 79"
9,"Synthesizer, 144-MHz CMOS","79","12","K9LHA",14,"Dec 79"
9,"Telephone controller for remote repeater operation","76","01","K0PHF, WA0UZO",50,"Jan 76"
9,"Telephone controller for remote repeater operation","77","04","Precautions (letter)",79,"Apr 77"
9,"Telephone controller, automatic for your repeater","74","11","K0PHF, WA0UZO",44,"Nov 74"
9,"Test set for Motorola radios","73","11","K0BKD",12,"Nov 73"
9,"Test set for Motorola radios","73","12","Short circuit",58,"Dec 73"
9,"Test set for Motorola radios","74","06","Added note (letter)",64,"Jun 74"
9,"Time-out warning indicator for fm repeater users","76","06","K3NEZ",62,"Jun 76"
9,"Timer, simple (HN)","73","03","W3CIX",58,"Mar 73"
9,"Tone burst generator for European repeaters","83","02","Comments, K2MWU",8,"Feb 83"
9,"Tone burst generator for European repeaters","86","07","WA3EEC",88,"Jul 86"
9,"Tone encoder and secondary frequency oscillator (HN)","69","06","K8AUH",66,"Jun 69"
9,"Tone encoder, universal for vhf fm","75","07","W6FUB",17,"Jul 75"
9,"Tone encoder, universal for vhf fm","75","12","Correction",58,"Dec 75"
9,"Tone generator, IC","77","02","Ahrens",70,"Feb 77"
9,"Tone generator, IC (HN)","79","03","W6IPB",88,"Mar 79"
9,"Tone-alert decoder","78","11","W8ZXH",64,"Nov 78"
9,"Tone-burst generator (HN)","73","03","K4COF",58,"Mar 73"
9,"Tone-burst generator for repeater accessing","77","09","WA5KPG",68,"Sep 77"
9,"Tone-burst generator for repeater accessing","79","02","Short circuit",94,"Feb 79"
9,"Tone-burst keyer for fm repeaters","72","01","W8GRG",36,"Jan 72"
9,"Touch-tone circuit, mobile","73","03","K7QWR",50,"Mar 73"
9,"Touch-tone decoder","83","04","KC9C",27,"Apr 83"
9,"Touch-tone decoder, IC","78","07","W3OG",26,"Jul 78"
9,"Touch-tone decoder, multi-function","73","10","K0PHF, WA0UZO",14,"Oct 73"
9,"Touch-tone decoder, third generation","80","02","WA7DPX",36,"Feb 80"
9,"Touch-tone decoder, third generation","80","09","Short circuit",67,"Sep 80"
9,"Touch-tone decoder, three-digit","74","12","W6AYZ",37,"Dec 74"
9,"Touch-tone decoder, three-digit","75","09","Circuit board for",62,"Sep 75"
9,"Touch-tone encoder","77","08","W3HB",41,"Aug 77"
9,"Touch-tone hand-held","75","09","K7YAM",44,"Sep 75"
9,"Touch-tone handset, converting slim-line","75","06","K2YAH",23,"Jun 75"
9,"Transceiver for two-meter fm, compact","74","01","W6AOI",36,"Jan 74"
9,"Transmitter for two meters, phase-modulated","70","02","W6AJF",18,"Feb 70"
9,"Transmitter, two-meter fm","72","04","W9SEK",6,"Apr 72"
9,"Tunable receiver modification for vhf fm","74","10","WB6VKY",40,"Oct 74"
9,"Two-meter synthesizer, direct output","77","08","WB2CPA",10,"Aug 77"
9,"Two-meter synthesizer, direct output","77","12","Short circuit",68,"Dec 77"
9,"Up/down repeater-mode circuit for two-meter synthesizers, 600 kHz","77","01","WB4PHO",40,"Jan 77"
9,"Up/down repeater-mode circuit for two-meter synthesizers, 600 kHz","77","05","Short circuit",94,"May 77"
9,"Vertical antennas, truth about 5/8-wavelength","74","05","K0DOK",48,"May 74"
9,"Vertical antennas, truth about 5/8-wavelength","75","01","Added note (letter)",54,"Jan 75"
9,"Weather monitor receiver, retune to two-meter fm (HN)","75","01","W3WTO",56,"Jan 75"
9,"Whip, 5/8-wave, 144 MHz (HN)","73","04","VE3DDD",70,"Apr 73"
9,"ZIA connection: a multi-state 2-meter repeater link","86","10","K5XY",30,"Oct 86"
10,"AC line transient protection","86","04","N6JH",59,"Apr 86"
10,"Common-point Grounding: Lightning Protection for Repeaters","89","07","K17JH",24,"Jul 89"
10,"Electric shock, the effects and treatment of","84","03","NY6U",85,"Mar 84"
10,"Lightning and electrical transient protection","83","12","KR7L",73,"Dec 83"
10,"Practically Speaking: safety standdown for those who service ham gear","90","06","K4IPV",48,"Jun 90"
10,"Protect Your Amateur Station from Lightning","89","09","KY9L",25,"Sep 89"
10,"When hazardous waste comes home: PCBs in the ham shack","83","12","KALLBO",42,"Dec 83"
11,"2716 EPROM programmer","82","04","N3CA",32,"Apr 82"
11,"555 timer operational characteristics","79","03","WB6FOC",32,"Mar 79"
11,"Active filters","78","02","K6JM",70,"Feb 78"
11,"Amateur uses of the MC1530 IC","68","05","W2EEY",42,"May 68"
11,"Amplifiers, broadband IC","73","06","W6GXN",36,"Jun 73"
11,"Applications, potpourri of IC","69","05","W1DTY, Thorpe",8,"May 69"
11,"Audio-power ICs","76","01","W3FQJ",64,"Jan 76"
11,"Balanced modulator, an integrated-circuit","70","09","K7QWR",6,"Sep 70"
11,"Binary coded decimal addition (HN)","82","04","WA9HUV",66,"Apr 82"
11,"Binary coded decimal addition (HN)","82","12","Comment, Schiffler, Jeffrey L.",8,"Dec 82"
11,"C L logic circuit","75","03","W1DTY",4,"Mar 75"
11,"Cmos logic circuits","75","06","W3FQJ",50,"Jun 75"
11,"CMOS programmable divide-by-N counter (HN)","78","01","W7BZ",94,"Jan 78"
11,"Counter gating sources","70","11","K6KA",48,"Nov 70"
11,"Counter reset generator (HN)","73","01","W3KBM",68,"Jan 73"
11,"Digital counters (letter)","73","05","W1GGN",76,"May 73"
11,"Digital ICs, part I","72","03","W3FQJ",41,"Mar 72"
11,"Digital ICs, part II","72","04","W3FQJ",58,"Apr 72"
11,"Digital ICs, part II","72","11","Correction",66,"Nov 72"
11,"Digital mixers","73","12","WB8IFM",42,"Dec 73"
11,"Digital multivibrators","72","06","W3FQJ",42,"Jun 72"
11,"Digital oscillators and dividers","72","08","W3FQJ",62,"Aug 72"
11,"Digital readout station accessory, part I","72","02","K6KA",6,"Feb 72"
11,"Digital station accessory, part II","72","03","K6KA",50,"Mar 72"
11,"Digital station accessory, part III","72","04","K6KA",36,"Apr 72"
11,"Divide-by-n counters, high-speed","76","03","W1OOP",36,"Mar 76"
11,"Electronic counter dials, IC","70","09","K6KA",44,"Sep 70"
11,"Electronic keyer, cosmos IC","74","06","WB2DFA",6,"Jun 74"
11,"Electronic keyer, cosmos IC","74","12","Short circuit",62,"Dec 74"
11,"Emitter-coupled logic","72","09","W3FQJ",62,"Sep 72"
11,"Exar XR-205 waveform generator as capacitance meter (HN)","79","07","W6WR",79,"Jul 79"
11,"Flip-flops","72","07","W3FQJ",60,"Jul 72"
11,"Flop-flip, using (HN)","72","02","W3KBM",60,"Feb 72"
11,"FSK tone generator using an IC tone dialer (HN)","83","04","Nagel, David",88,"Apr 83"
11,"Function generator, IC","71","08","W1DTY",40,"Aug 71"
11,"Function generator, IC","74","06","K4DHC",22,"Jun 74"
11,"Gain control IC for audio signal processing","77","07","Jung",47,"Jul 77"
11,"I L logic circuits","75","11","W1DTY",4,"Nov 75"
11,"IC arrays","78","09","K6JM",42,"Sep 78"
11,"IC op amp update","78","03","Jung, Waiter",62,"Mar 78"
11,"IC power (HN)","72","04","W3KBM",68,"Apr 72"
11,"IC tester, TTL","76","08","WA4LCO",66,"Aug 76"
11,"IC-regulated power supply for ICs","68","03","W6GXN",28,"Mar 68"
11,"Integrated circuits, part I","71","06","W3FQJ",40,"Jun 71"
11,"Integrated circuits, part II","71","07","W3FQJ",58,"Jul 71"
11,"Integrated circuits, part III","71","08","W3FQJ",50,"Aug 71"
11,"Logic families, IC","74","01","W6GXN",26,"Jan 74"
11,"Logic monitor (HN)","72","04","WA5SAF",70,"Apr 72"
11,"Logic monitor (HN)","72","12","Correction",91,"Dec 72"
11,"Logic test probe","73","12","VE6RF",53,"Dec 73"
11,"Logic test probe (HN)","73","02","Rossman",56,"Feb 73"
11,"Logic test probe (HN)","73","12","Short circuit",58,"Dec 73"
11,"Low-cost linear ICs","69","10","WA7KRE",20,"Oct 69"
11,"Low-pass filter, integrated circuit","85","01","WB2KTG",59,"Jan 85"
11,"Missent ID","76","04","K6KA",25,"Apr 76"
11,"Modular modulos","70","08","W9SEK",63,"Aug 70"
11,"Motorola MC1530 IC, amateur uses for","68","05","W2EEY",42,"May 68"
11,"Multi-function integrated circuits","72","10","W3FQJ",46,"Oct 72"
11,"National LM373, using in ssb transceiver","73","11","W5BAA",32,"Nov 73"
11,"Op amp (741) circuit design","76","04","WA5SNZ",26,"Apr 76"
11,"Op amp challenges the 741","78","01","WA5SNZ",76,"Jan 78"
11,"Operational amplifiers","69","11","WB2EGZ",6,"Nov 69"
11,"Phase-locked loops, IC","71","09","W3FQJ",54,"Sep 71"
11,"Phase-locked loops, IC, experiments with","71","10","W3FQJ",58,"Oct 71"
11,"Plessey SL600-series ICs, how to use","73","02","G8FNT",26,"Feb 73"
11,"Practically Speaking: getting to know the logic families, part 2: CMOS","90","01","K4IPV",77,"Jan 90"
11,"Practically Speaking: Getting to Know the Logic Families- pt 1: TTL","89","12","K4IPV",34,"Dec 89"
11,"Removing ICs (HN)","70","08","W6NIF",71,"Aug 70"
11,"Seven-segment readouts, multiplexed","75","07","W5NPD",37,"Jul 75"
11,"Simple eeprom programmer","90","01","WA2IHE",40,"Jan 90"
11,"Socket label for ICs (HN)","78","01","WA4WDL, WB4LJM",94,"Jan 78"
11,"Ssb detector, IC (HN)","72","12","K4ODS",67,"Dec 72"
11,"Ssb detector, IC (HN)","73","04","Correction (letter)",72,"Apr 73"
11,"Ssb equipment, using TTL ICs in","75","11","G4ADJ",18,"Nov 75"
11,"Static electricity and modern integrated circuits","84","03","K4KEF",33,"Mar 84"
11,"Surplus ICs (HN)","70","07","W4AYV",68,"Jul 70"
11,"Sync generator, IC, for ATV","75","07","W0KGI",34,"Jul 75"
11,"The Guerri report","86","01","W6MGI",124,"Jan 86"
11,"The Guerri report: microchips","86","07","W6MGI",109,"Jul 86"
11,"The Guerri report: superchips come of age","85","02","W6MGJ",126,"Feb 85"
11,"TouchTone decoder, an Improved","82","12","N6JH",24,"Dec 82"
11,"Transceiver, 9-MHz ssb, IC","74","08","G3ZVC",34,"Aug 74"
11,"Transceiver, 9-MHz ssb, IC","75","09","Circuit change (letter)",62,"Sep 75"
11,"TTL ICs, simple tests for","82","03","W6ALF",37,"Mar 82"
11,"TTL oscillator (HN)","78","02","WB6VZM",77,"Feb 78"
11,"TTL sub-series ICs, how to select","77","12","WA1SNG",26,"Dec 77"
11,"U/ART, how it works","76","02","Titus",58,"Feb 76"
11,"Using ICs in a nbfm system","68","10","W6AJF",30,"Oct 68"
11,"Using ICs with single-polarity power supplies","69","09","W2EEY",35,"Sep 69"
11,"Using integrated circuits (HN)","69","05","W9KXJ",69,"May 69"
11,"Voltage regulators","77","03","W6GXN",31,"Mar 77"
11,"Voltage regulators, IC","70","10","W7FLC",22,"Oct 70"
11,"Voltage-regulator ICs, adjustable","75","08","WB9KEY",36,"Aug 75"
11,"Voltage-regulator ICs, three-terminal","73","12","WB5EMI",26,"Dec 73"
11,"Voltage-regulator ICs, three-terminal","74","09","Added note (letter)",73,"Sep 74"
11,"Vtvm, convert to an IC voltmeter","74","12","K6VCI",42,"Dec 74"
12,"Accu-keyer speed readout","79","09","K5MAT",60,"Sep 79"
12,"Accu-Mill, keyboard interface for the Accu-Keyer","76","09","WN9OVY",26,"Sep 76"
12,"ASCII-to-Morse code translator","76","12","Morley, Scharon",41,"Dec 76"
12,"Automatic beeper for station control","76","09","WA6URN",38,"Sep 76"
12,"Biquad bandpass filter for CW","79","06","N0DE",70,"Jun 79"
12,"Biquad bandpass filter for CW","79","09","Short circuit",92,"Sep 79"
12,"Biquad bandpass filter for CW","79","11","Comments",6,"Nov 79"
12,"Break-in circuit, CW","72","01","W8SYK",40,"Jan 72"
12,"Break-in control system, IC (HN)","70","09","W9ZTK",68,"Sep 70"
12,"Bug, solid-state","73","06","K2FV",50,"Jun 73"
12,"Call sign identifier: programmable","85","02","WB3CEH",33,"Feb 85"
12,"Carrier-operated relay","72","11","K0PHF, WA0UZO",58,"Nov 72"
12,"Cathode key with the Heath HD-1410 (HN)","82","01","K9XM, N9MX",80,"Jan 82"
12,"CMOS keyer, simple","79","01","HB9ABO",70,"Jan 79"
12,"Cmos keying circuits (HN)","75","01","WB2DFA",57,"Jan 75"
12,"Code speed counter","79","02","K8TT",86,"Feb 79"
12,"Constant pitch monitor for cathode or grid-block keyed transmitters (HN)","78","09","K4GMR",100,"Sep 78"
12,"Contest keyer (HN)","70","04","K2UBC",79,"Apr 70"
12,"Contest keyer, programmable","76","04","W7BBX",10,"Apr 76"
12,"CW break-in, quieting amplifiers for","79","01","W1DB",46,"Jan 79"
12,"CW Identifier, versatile","80","10","WB2BWJ",22,"Oct 80"
12,"CW Identifier, versatile","82","02","Short circuit",70,"Feb 82"
12,"CW keyboard using the APPLE II computer","80","10","W6WR",60,"Oct 80"
12,"CW memory modification (HN)","81","05","W0DLQ",93,"May 81"
12,"CW operator's PAL","79","04","W2YE",23,"Apr 79"
12,"CW reception, enhancing through a simulated-stereo technique","74","10","WA1MKP",61,"Oct 74"
12,"CW regenerator for interference-free communications","74","04","Leward, WB2EAX",54,"Apr 74"
12,"CW sidetone (C&T)","76","06","W1DTY",51,"Jun 76"
12,"CW signal processor","78","10","W7KGZ",34,"Oct 78"
12,"CW signal processor","79","06","Comments, VE3CBJ",6,"Jun 79"
12,"Dasher","79","03","KH6JF",68,"Mar 79"
12,"Deluxe memory keyer with 3072-bit capacity","79","04","W3VT",32,"Apr 79"
12,"Deluxe memory keyer with 3072-bit capacity","79","09","Short circuit",92,"Sep 79"
12,"Deluxe memory keyer with 3072-bit capacity","82","01","Short circuit",89,"Jan 82"
12,"Differential keying circuit","76","08","W4IYB",60,"Aug 76"
12,"Electronic hand keyer","71","06","K5TCK",36,"Jun 71"
12,"Electronic keyer","78","04","OK3IA",10,"Apr 78"
12,"Electronic keyer notes (HN)","71","12","ZL1BN",74,"Dec 71"
12,"Electronic keyer package, compact","73","11","W4ATE",50,"Nov 73"
12,"Electronic keyer with random-access memory","73","10","WB9FHC",6,"Oct 73"
12,"Electronic keyer with random-access memory","74","12","Corrections (letter)",58,"Dec 74"
12,"Electronic keyer with random-access memory","75","03","Increased flexibility (HN)",62,"Mar 75"
12,"Electronic keyer with random-access memory","75","06","Corrections (letter)",57,"Jun 75"
12,"Electronic keyer with random-access memory","77","02","Improvements (letter)",76,"Feb 77"
12,"Electronic keyer, 8043 IC","75","04","W6GXN",8,"Apr 75"
12,"Electronic keyer, cosmos IC","74","06","WB2DFA",6,"Jun 74"
12,"Electronic keyer, cosmos IC","74","12","Short circuit",62,"Dec 74"
12,"Electronic keyer, IC","69","11","VE7BFK",32,"Nov 69"
12,"Electronic keyers, simple IC","73","03","WA5TRS",38,"Mar 73"
12,"End-of-transmission K generator","79","10","G8KGV",58,"Oct 79"
12,"Grid-block keying, simple (HN)","70","04","WA4DHU",78,"Apr 70"
12,"Ham radio techniques (10/84)","84","10","W6SAI",106,"Oct 84"
12,"Improving the WB3CEH programmable callsign identifier (HN)","87","09","KL7XO",82,"Sep 87"
12,"Improving transmitter keying","76","06","K6KA",44,"Jun 76"
12,"Key and vox clicks (HN)","72","08","K6KA",74,"Aug 72"
12,"Key toggle","79","03","W6NRW",50,"Mar 79"
12,"Keyboard electronic keyer, the code mill","74","11","W6CAB",38,"Nov 74"
12,"Keyer modification (HN)","76","08","W9KNI",80,"Aug 76"
12,"Keyer modification (HN)","77","11","Comments",94,"Nov 77"
12,"Keyer mods, micro-TO","76","07","DJ9RP",68,"Jul 76"
12,"Keyer paddle, portable","77","02","WA5KPG",52,"Feb 77"
12,"Keyer with memory (letter)","79","12","Hansen, William",6,"Dec 79"
12,"Keyer, simple, compact QRP (weekender)","84","10","W5FG",82,"Oct 84"
12,"Keyer, single-chip, for QRP (weekender)","82","10","W3HVK",70,"Oct 82"
12,"Keying the Heath HG-10B vfo (HN)","70","09","K4BRR",67,"Sep 70"
12,"Keying, paddle, Siamese","75","01","WA5KPG",45,"Jan 75"
12,"Latch circuit, dc","75","08","W0LPQ",42,"Aug 75"
12,"Latch circuit, dc","75","12","Correction",58,"Dec 75"
12,"Latching relay control (HN)","83","05","K6HTM",94,"May 83"
12,"Low-power keyer and interface","83","02","K1HOP",68,"Feb 83"
12,"Low-power keyer and interface","83","08","Short circuit",97,"Aug 83"
12,"Memo-key","72","06","WA7SCB",58,"Jun 72"
12,"Memory accessory, programmable for electronic keyers","75","08","WA9LUD",24,"Aug 75"
12,"Memory keyer, (letter)","80","02","W3VT",6,"Feb 80"
12,"Memory keyer, 2048-bit (HN)","80","06","GW4CQT",73,"Jun 80"
12,"Memory keyer, W7BBX (letter)","80","01","SP2DX",6,"Jan 80"
12,"Microcomputer-based contest keyer","81","01","K9CW",36,"Jan 81"
12,"Microprocessor repeater controller","83","04","KB5F",56,"Apr 83"
12,"Micros and VHF beacons transmit messages automatically","85","07","K9EI",51,"Jul 85"
12,"Mini-paddle","69","02","K6RIL",46,"Feb 69"
12,"Morse Code tutor","85","06","N3SE",45,"Jun 85"
12,"Morse generator, keyboard","75","04","W7CUU",36,"Apr 75"
12,"Morse keyboard, an easier approach to mastering the","84","04","W1KZ",80,"Apr 84"
12,"Morse sounder, radio controlled (HN)","71","10","K6QEQ",66,"Oct 71"
12,"Morse time synthesis","83","04","N3SE",17,"Apr 83"
12,"Oscillators, electronic keyer","70","06","WA6JNJ",44,"Jun 70"
12,"Paddle for electronic keyers","78","04","ZS6AL",28,"Apr 78"
12,"Paddle, electronic keyer (HN)","72","09","KL7EVD",68,"Sep 72"
12,"Paddle, homebrew keyer","69","05","W3NK",43,"May 69"
12,"Programmable accessory for electronic keyers (HN)","78","08","K9WGN/W0USL",81,"Aug 78"
12,"Programmable keyer, Autek MK-1, expanded memory for","80","01","N9AKT",58,"Jan 80"
12,"Push-to-talk for Styleline telephones","71","12","W1DRP",18,"Dec 71"
12,"QRP TLC-keyer (Weekender)","90","01","K1BQT",72,"Jan 90"
12,"Radio Shack ASCII keyboard encoder for micro-processor-controlled CW keyboard, using (HN)","80","10","VE7ZV",72,"Oct 80"
12,"RAM keyer update","76","01","K3NEZ",60,"Jan 76"
12,"Relay activator (HN)","71","09","K6KA",62,"Sep 71"
12,"Relay, transistor replaces (HN)","70","01","W3NK",72,"Jan 70"
12,"Relays, surplus (HN)","70","07","W2OLU",70,"Jul 70"
12,"Relays, undervoltage (HN)","71","03","W2OLU",64,"Mar 71"
12,"Remote control hf operation","83","04","K5QY",32,"Apr 83"
12,"Remote control hf operation","83","08","Short circuit",97,"Aug 83"
12,"Remote keying your transmitter (HN)","69","10","WA3HOU",74,"Oct 69"
12,"Remotely controlled stations: a look at a successful remote base","86","09","WA6EJO",48,"Sep 86"
12,"Reset timer, automatic","74","10","W5ZHV",54,"Oct 74"
12,"Sending CW","83","06","KA4QVK",75,"Jun 83"
12,"Sequential switching (HN)","72","10","W5OSF",63,"Oct 72"
12,"Solenoid rotary switches","68","04","W2EEY",36,"Apr 68"
12,"Solid-state CW T-R system","83","03","W4RNL",62,"Mar 83"
12,"Station control center","68","04","W7OE",26,"Apr 68"
12,"Step-start circuit, high-voltage (HN)","71","09","W6VFR",64,"Sep 71"
12,"Suppression networks, arc (HN)","73","07","WA5EKA",70,"Jul 73"
12,"Ten-Tec 645 ultramatic keyer mods (HN)","82","12","K4JST",70,"Dec 82"
12,"Testing baluns","83","08","K4KJ",30,"Aug 83"
12,"Time base, calibrated electronic keyer","75","08","W1PLJ",39,"Aug 75"
12,"Timer, ten-minute (HN)","76","11","DJ9RP",66,"Nov 76"
12,"Transceiver diplexer: an alternative to relays","80","12","N6RY",71,"Dec 80"
12,"Transistor switching for electronic keyers (HN)","74","06","W3QBO",66,"Jun 74"
12,"Transmit/receive switch PIN diode","76","05","W9KHC",10,"May 76"
12,"Transmitter switching, solid-state","68","06","W2EEY",44,"Jun 68"
12,"Typewriter-type electronic keys, further automation for","70","03","W6PRO",26,"Mar 70"
12,"Vox and mox systems for ssb","68","10","Belt",24,"Oct 68"
12,"Vox keying (HN)","69","12","VE7IG",83,"Dec 69"
12,"Vox, IC","69","03","W2EEY",50,"Mar 69"
12,"Vox, versatile","71","07","W9KIT",50,"Jul 71"
12,"Vox, versatile","71","12","Short circuit",96,"Dec 71"
12,"WPM readout for deluxe memory keyer (weekender)","82","04","WA1OEH",50,"Apr 82"
13,"1.5GHz prescaler, divide by 4","78","12","N6JH",88,"Dec 78"
13,"2.3GHz prescaler","87","01","N6JH",21,"Jan 87"
13,"A-m modulation monitor, vhf (HN)","71","07","K7UNL",67,"Jul 71"
13,"Absorption measurements, using your signal generator for","76","10","W2OUX",79,"Oct 76"
13,"Ac current monitor (letter)","75","03","WB5MAP",61,"Mar 75"
13,"AC power-line monitor","71","08","W2OLU",46,"Aug 71"
13,"Add a digital readout to the "poor man's spectrum analyzer"","88","09","WA2PZO",84,"Sep 88"
13,"AFSK generator, crystal-controlled","72","07","K7BVT",13,"Jul 72"
13,"AFSK generator, phase-locked loop","73","03","K7ZOF",27,"Mar 73"
13,"Amateur frequency measurements","68","10","K6KA",53,"Oct 68"
13,"An i-f sweep generator","87","01","W2ZUC",101,"Jan 87"
13,"An rf voltmeter","87","11","G4COL",65,"Nov 87"
13,"Antenna and transmission line measurement techniques","74","05","W4OQ",36,"May 74"
13,"Antenna bridge calculations","78","05","Anderson, Leonard H.",34,"May 78"
13,"Antenna bridge calculations (letter)","78","05","W5QJR",6,"May 78"
13,"Antenna gain, measuring","69","07","K6JYO",26,"Jul 69"
13,"Antenna matcher","71","06","W4SD",24,"Jun 71"
13,"Automatic noise-figure measurements (Repair Bench)","78","08","W6NBI",40,"Aug 78"
13,"Base step generator","76","07","WB4YDZ",44,"Jul 76"
13,"Battery charger sensor","82","12","W3BYM",54,"Dec 82"
13,"BC221, unusual","83","01","VK2ZH",22,"Jan 83"
13,"Beta master, the","68","08","K8ERV",18,"Aug 68"
13,"Bridge for antenna measurements, simple","70","09","W2CTK",34,"Sep 70"
13,"Bridge measurements, the half-wave transmission line in (HN)","84","11","K4KI",108,"Nov 84"
13,"Bridge, noise, for impedance measurements","73","01","YA1GJM",62,"Jan 73"
13,"Bridge, noise, for impedance measurements","74","05","Added notes",66,"May 74"
13,"Bridge, noise, for impedance measurements","75","03","Added notes",60,"Mar 75"
13,"Bridge, rf noise","70","12","WB2EGZ",18,"Dec 70"
13,"Broadband reflectometer and power meter","79","05","VK2ZTB, WB2ZZO",28,"May 79"
13,"Build this simple L-C checker","88","12","W5FG",19,"Dec 88"
13,"Calibrating ac scales on the vtvm, icvm and fet voltmeter","76","09","W7KQ",48,"Sep 76"
13,"Calibrating series-resistance capacitance bridges (HN)","88","12","Caron",27,"Dec 88"
13,"Calibrator, plug-in IC","69","03","K6KA",22,"Mar 69"
13,"Calibrators and counters","68","11","K6KA",41,"Nov 68"
13,"Capacitance measurements with a frequency counter - Weekender","79","10","Moran, John",62,"Oct 79"
13,"Capacitance meter","78","02","Mathieson, P. H.",51,"Feb 78"
13,"Capacitance meter, (simplified), improvements to","80","03","WA3CPH",54,"Mar 80"
13,"Capacitance meter, digital","74","02","K4DHC",20,"Feb 74"
13,"Capacitance meter, direct reading, for electrolytics","71","10","W9DJZ",14,"Oct 71"
13,"Capacitance meter, direct-reading","70","04","ZL2AUE",46,"Apr 70"
13,"Capacitance meter, direct-reading","72","08","W6MUR",48,"Aug 72"
13,"Capacitance meter, direct-reading","74","03","Short circuit",64,"Mar 74"
13,"Capacitance meter, direct-reading","75","04","WA5SNZ",32,"Apr 75"
13,"Capacitance meter, direct-reading","75","10","Added note",31,"Oct 75"
13,"Capacitance meter, simplified","78","11","WA5SNZ",78,"Nov 78"
13,"Capacitive-reactance meter multiplier (HN)","83","04","K4KI",89,"Apr 83"
13,"Coaxial cable, checking (letter)","71","05","W2OLU",68,"May 71"
13,"Coaxial-line loss, measuring with a reflectometer","72","05","W2VCI",50,"May 72"
13,"Continuity bleeper for circuit tracing","77","07","G3SBA",67,"Jul 77"
13,"Continuity tester, simple","85","09","WD6GMB",130,"Sep 85"
13,"Converter, mosfet, for receiver instrumentation","71","01","WA9ZMT",62,"Jan 71"
13,"Counter control pulses (HN)","80","04","W9LL",70,"Apr 80"
13,"Counter gating sources","70","11","K6KA",48,"Nov 70"
13,"Counter readouts, switching (HN)","71","06","K6KA",66,"Jun 71"
13,"Counter reset generator (HN)","73","01","W3KBM",68,"Jan 73"
13,"Counter, compact frequency","70","07","K4EEU",16,"Jul 70"
13,"Counter, compact frequency","70","12","Short circuit",72,"Dec 70"
13,"Counters: a solution to the readout problem","70","01","WA0GOZ",66,"Jan 70"
13,"CRT intensifier for RTTY","71","07","K4VFA",18,"Jul 71"
13,"Crystal checker","72","02","W6GXN",46,"Feb 72"
13,"Crystal test oscillator and signal generator","73","03","K4EEU",46,"Mar 73"
13,"Crystal-controlled frequency markers (HN)","71","09","WA4WDK",64,"Sep 71"
13,"Cubical quad measurements","69","01","W4YM",42,"Jan 69"
13,"Current monitor mod","75","03","Letter",61,"Mar 75"
13,"Curve master, the","68","03","K8ERV",40,"Mar 68"
13,"Decade standards, economical (HN)","71","06","W4ATE",66,"Jun 71"
13,"Deluxe logic probe","87","01","M. Wilde",74,"Jan 87"
13,"Detailed look at probes","85","09","Martin, and Davis",75,"Sep 85"
13,"Detector, logarithmic, wideband","85","07","PA0CX, DJ0SA",75,"Jul 85"
13,"Deviation, measuring","79","01","N6UE",20,"Jan 79"
13,"Digital capacitance meter","80","08","K4GOK",66,"Aug 80"
13,"Digital counters (letter)","73","05","W1GGN",76,"May 73"
13,"Digital field strength meter","90","05","N4TMI",30,"May 90"
13,"Digital readout station accessory, part I","72","02","K6KA",6,"Feb 72"
13,"Digital station accessory, part II","72","03","K6KA",50,"Mar 72"
13,"Digital station accessory, part Ill","72","04","K6KA",36,"Apr 72"
13,"Diode noise source for receiver noise measurements","79","06","W6NBI",32,"Jun 79"
13,"Diode tester","77","01","W6DOB",46,"Jan 77"
13,"Diode tester (HN)","83","04","W2OLU",90,"Apr 83"
13,"Dip meters, a new look at","81","08","W6GXN",25,"Aug 81"
13,"Dip-meter converter for VLF","79","08","W4YOT",26,"Aug 79"
13,"Dipper without plug-in coils","68","05","W6BLZ",64,"May 68"
13,"Dual wattmeter, 50-500 MHz","85","07","WB4EHS",67,"Jul 85"
13,"Dummy load and rf wattmeter, low-power","70","04","W2OLU",56,"Apr 70"
13,"Dummy load low-power vhf","73","09","WB9DNI",40,"Sep 73"
13,"Dummy loads","76","03","W4MB",40,"Mar 76"
13,"Dummy loads, experimental","68","09","W8YFB",36,"Sep 68"
13,"Dynamic transistor tester (HN)","71","10","VE7ABK",65,"Oct 71"
13,"Electrical calibration standards","83","10","Martin, Vaughn D.",10,"Oct 83"
13,"Electrolytic capacitors, measurement of (HN)","71","02","W2NA",70,"Feb 71"
13,"Electrolytic capacitors, measuring capacitance of","80","09","KP4DIF",24,"Sep 80"
13,"Elmer's notebook: power measurements","88","01","W1SL",100,"Jan 88"
13,"Elmer's Notebook: Simple Instruments RF Output Monitor","89","11","W1SL",91,"Nov 89"
13,"Elmer's notebook: standing wave ratio- what does it mean?","88","02","W1SL",98,"Feb 88"
13,"Elmer's Notebook: Test Equipment-Easy and Useful","89","10","W1SL",86,"Oct 89"
13,"Elmer's Notebook: Visual Aids- Oscilloscopes","89","06","W1SL",92,"Jun 89"
13,"EMI/RFI shielding: new techniques part1","84","01","Martin, Vaughn D.",72,"Jan 84"
13,"EMI/RFI shielding: new techniques part2","84","02","Martin, Vaughn D.",85,"Feb 84"
13,"Extend Your DVM's Measurement Capabilities","89","10","N6YC",72,"Oct 89"
13,"Extended-range VU meter","86","09","WB6JNN",59,"Sep 86"
13,"Field strength meter, sensitive","85","01","K4KI",51,"Jan 85"
13,"Field-strength meter for the high-frequency Amateur bands","81","07","WB6AFT",42,"Jul 81"
13,"Filter tester, simple (HN)","84","12","W6XM",116,"Dec 84"
13,"Fm deviation measurement (letter)","71","05","K5ZBA",68,"May 71"
13,"Fm deviation measurements","72","02","W3FQJ",52,"Feb 72"
13,"Fm frequency meter, two-meter","71","01","W4JAZ",40,"Jan 71"
13,"Fm frequency meter, two-meter","71","04","Short circuit",72,"Apr 71"
13,"Frequencies, counted (HN)","74","08","K6KA",62,"Aug 74"
13,"Frequency and level standard","86","01","PA0CX",10,"Jan 86"
13,"Frequency and level standard","86","06","Comments, WA8LLY",9,"Jun 86"
13,"Frequency calibration using 60 kHz WWVB","88","03","W4ZPS",45,"Mar 88"
13,"Frequency calibrator, general coverage","71","12","W5UQS",28,"Dec 71"
13,"Frequency calibrator, how to design","71","07","W3AEX",54,"Jul 71"
13,"Frequency counter, "smart"","84","10","WA5VQK",41,"Oct 84"
13,"Frequency counter, "smart"","85","04","Short circuit",126,"Apr 85"
13,"Frequency counter, 50 MHz, 6 digit","76","01","WB2DFA",18,"Jan 76"
13,"Frequency counter, 50 MHz, 6 digit","77","04","Comment",79,"Apr 77"
13,"Frequency counter, capacitance-measurement accuracy for","80","04","W1ZUC",44,"Apr 80"
13,"Frequency counter, capacitance-measurement accuracy for","80","09","Short circuit",67,"Sep 80"
13,"Frequency counter, CMOS","77","02","W2OKO",22,"Feb 77"
13,"Frequency counter, CMOS","77","05","Short circuit",94,"May 77"
13,"Frequency counter, front-ends for a 500-MHz","78","02","K4JIU",30,"Feb 78"
13,"Frequency counter, high-impedance preamp and pulse shaper for","78","02","I4YAF",47,"Feb 78"
13,"Frequency counter, how to improve the accuracy of","77","10","W1RF",26,"Oct 77"
13,"Frequency counter, K4JIU, modifications for (HN)","80","03","K4JIU",65,"Mar 80"
13,"Frequency counter, miniature","79","10","K5WKQ",34,"Oct 79"
13,"Frequency counter, modify for direct counting to 100 MHz","78","02","WA1SNG",26,"Feb 78"
13,"Frequency counter, simple (HN)","78","08","W2QBR",81,"Aug 78"
13,"Frequency counter, simplifying","78","02","W1WP",22,"Feb 78"
13,"Frequency counter, simplifying","79","02","Short circuit",94,"Feb 79"
13,"Frequency counters, high-sensitivity preamplifier for","78","10","W1CFI",80,"Oct 78"
13,"Frequency counters, uhf and microwave","79","09","W6NBI",34,"Sep 79"
13,"Frequency counters, understanding and using","78","02","W6NBI",10,"Feb 78"
13,"Frequency measurement of received signals","73","10","W4AAD",38,"Oct 73"
13,"Frequency measurement, vhf, with hf receiver and scaler (HN)","77","05","W3LB",90,"May 77"
13,"Frequency meter, crystal controlled (HN)","69","09","W5JSN",71,"Sep 69"
13,"Frequency scaler, 500-MHz","75","06","W6URH",32,"Jun 75"
13,"Frequency scaler, divide-by-ten","70","08","K4EEU",26,"Aug 70"
13,"Frequency scaler, divide-by-ten","71","04","Short circuit",72,"Apr 71"
13,"Frequency scaler, divide-by-ten","72","09","W6PBC",41,"Sep 72"
13,"Frequency scaler, divide-by-ten","72","12","Correction",90,"Dec 72"
13,"Frequency scaler, divide-by-ten","73","11","Added comments (letter)",64,"Nov 73"
13,"Frequency scaler, uhf (11C90)","75","12","WB9KEY",50,"Dec 75"
13,"Frequency scalers, 1200-MHz","75","02","WB9KEY",38,"Feb 75"
13,"Frequency standard (HN)","72","09","WA7JIK",69,"Sep 72"
13,"Frequency standard, universal","74","02","K4EEU",40,"Feb 74"
13,"Frequency standard, universal","74","05","Short circuit",72,"May 74"
13,"Frequency synthesizer, high-frequency","72","10","K2BLA",16,"Oct 72"
13,"Frequency-rnarker standard using cmos","77","08","W4IYB",44,"Aug 77"
13,"Frequency-shift meter, RTTY","70","06","VK3ZNV",33,"Jun 70"
13,"Function generator, IC","71","08","W1DTY",40,"Aug 71"
13,"Function generator, IC","74","06","K4DHC",22,"Jun 74"
13,"Function generator, integrated circuit","80","08","N3FG",30,"Aug 80"
13,"Function/units indicator using LED displays","77","03","K0FOP",58,"Mar 77"
13,"Gallon-size dummy load","79","06","W4MB",74,"Jun 79"
13,"Gate-dip meter","77","06","W3WLX",42,"Jun 77"
13,"Gdo, new uses for","68","12","K2ZSQ",48,"Dec 68"
13,"Grid current measurement in grounded-grid amplifiers","68","08","W6SAI",64,"Aug 68"
13,"Grid-dip meter, no-cost","78","02","W8YFB",87,"Feb 78"
13,"Grid-dip oscillator, solid-state conversion of","70","06","W6AJZ",20,"Jun 70"
13,"Ground rod resistance","84","07","K4MT",95,"Jul 84"
13,"Ground rod resistance","84","09","Comments",8,"Sep 84"
13,"Ham radio techniques: time and frequency station WWVS, minibeam design, etc","88","06","W6SAI",37,"Jun 88"
13,"Harmonic generator (HN)","70","10","W5GDQ",76,"Oct 70"
13,"High-frequency receiver performance","88","02","G4OBU",33,"Feb 88"
13,"High-impedance Rotary Step Attenuator","89","02","N2DCH",24,"Feb 89"
13,"HP-IB greatly simplified","88","03","Martin, Vaughn D.",65,"Mar 88"
13,"I-f alignment generator 455-kHz","74","02","WA5SNZ",50,"Feb 74"
13,"IF sweep generator, compact","85","06","PA0CX, DJ0SA",35,"Jun 85"
13,"Impedance bridge (HN)","70","02","W6KZK",67,"Feb 70"
13,"Impedance bridge measurement errors and corrections","79","05","K4KJ",22,"May 79"
13,"Impedance bridge, low-cost RX","73","05","W8YFB",6,"May 73"
13,"Impedance bridge, simple","68","04","WA9QJP",40,"Apr 68"
13,"Impedance matching","83","07","WB2NTQ",85,"Jul 83"
13,"Impedance, measuring with swr bridge","75","05","WB4KSS",46,"May 75"
13,"Impulse generator, pulse-snap diode","72","10","Siegal, Turner",29,"Oct 72"
13,"Inductance meter, easy-to-build","82","04","W6XM",76,"Apr 82"
13,"Inductance meter, easy-to-build","82","09","Comments, WB2LAO",8,"Sep 82"
13,"Inductance meter, easy-to-build","82","10","Short circuit",79,"Oct 82"
13,"Instrumentation and the ham","68","07","VE3GFN",28,"Jul 68"
13,"Instrumentation series: oscilloscopes","90","04","K7OWJ",49,"Apr 90"
13,"Introduction to waveform generators - part 3","90","01","K4IPV",63,"Jan 90"
13,"Introduction to Waveform Generators- pt 1","89","09","K4IPV",62,"Sep 89"
13,"Introduction to Waveform Generators- pt 2","89","12","K4IPV",82,"Dec 89"
13,"K4EEU frequency standard, battery backup for (HN)","81","07","N4BA",68,"Jul 81"
13,"Keeping an Eye on Your Sideband PEP-The Weekender","89","09","GW4NAH",17,"Sep 89"
13,"L and C measurements","84","10","WB6ZLN",117,"Oct 84"
13,"L, C, R bridge, universal","76","04","W6AOI",54,"Apr 76"
13,"l-f sweep generator","73","09","K4DHC",10,"Sep 73"
13,"LED millivoltmeter (Weekender)","90","03","W0JF",82,"Mar 90"
13,"Light-bulb dummy loads (HN)","81","10","W6HPH",74,"Oct 81"
13,"Line-voltage monitor (HN)","74","01","WA8VFK",66,"Jan 74"
13,"Linearity meter for ssb amplifiers","76","06","W4MB",40,"Jun 76"
13,"lntermodulation-distortion measurements on ssb transmitters","74","09","W6VFR",34,"Sep 74"
13,"Logic mate","83","01","N9CZK",57,"Jan 83"
13,"Logic monitor (HN)","72","04","WA5SAF",70,"Apr 72"
13,"Logic monitor (HN)","72","12","Correction",91,"Dec 72"
13,"Logic probe","79","02","K9CW",83,"Feb 79"
13,"Logic probe (HN)","83","04","Rozenthal, J.",91,"Apr 83"
13,"Logic probe, digital","80","08","N6UE",38,"Aug 80"
13,"Logic test probe","73","12","VE6RF",53,"Dec 73"
13,"Logic test probe (HN)","73","02","Rossman",56,"Feb 73"
13,"Logic test probe (HN)","73","12","Short circuit",58,"Dec 73"
13,"Low-cost spectrum analyzer with kilo-buck features","86","09","W4UCH",82,"Sep 86"
13,"Makeshift test equipment (HN)","68","09","W7FS",77,"Sep 68"
13,"Measuring inductances","83","07","K6HIK",85,"Jul 83"
13,"Measuring noise figure","84","01","K2BLA",26,"Jan 84"
13,"Measuring small values","83","08","W6SDM",74,"Aug 83"
13,"Meter amplifier, electronic","76","12","WA9HUV",38,"Dec 76"
13,"Meter amplifiers, calibrating","78","09","W4OHT",80,"Sep 78"
13,"Meter interface, high-impedance","74","01","Laughlin",20,"Jan 74"
13,"Meters, testing unknown (HN)","71","01","W1ONC",66,"Jan 71"
13,"Microfarad Counter,The","89","05","PA0CX",85,"May 89"
13,"Microphone calibration","84","06","NY6U",73,"Jun 84"
13,"Microwave marker generator, 3cm band (HN)","76","06","WA4WDL",69,"Jun 76"
13,"Milliammeters, how to use","75","09","W4PSJ",48,"Sep 75"
13,"Mini-spotter frequency checker","68","05","W7OE",48,"May 68"
13,"Monitorscope, miniature","69","03","WA3FIY",34,"Mar 69"
13,"Monitorscope, RTTY","72","08","W3CIX",36,"Aug 72"
13,"Multi-box (HN)","69","07","W3KBM",68,"Jul 69"
13,"Multi-featured function generator","88","04","WA7IRY",9,"Apr 88"
13,"Multiplexed counter displays (HN)","78","05","K1XX",87,"May 78"
13,"Multitester (HN)","71","05","W1DTY",63,"May 71"
13,"NBS time and frequency survey","87","06","NBS",45,"Jun 87"
13,"Noise bridge calculations with TI 58/59 calculators","78","05","WD4GA1",45,"May 78"
13,"Noise bridge construction (letter)","78","09","OH2ZAZ",8,"Sep 78"
13,"Noise bridge, antenna (HN)","74","05","K8EEG",71,"May 74"
13,"Noise bridge, precision","83","03","K2ST",51,"Mar 83"
13,"Noise bridge, precision","83","06","Comments",8,"Jun 83"
13,"Noise bridge, precision","83","08","Short circuit",97,"Aug 83"
13,"Noise figure measurements","78","08","W6NBI",40,"Aug 78"
13,"Noise figure measurements","79","08","Comments, WB5LHV, W6NBI",6,"Aug 79"
13,"Noise figure, vhf, estimating","75","06","WA9HUV",42,"Jun 75"
13,"Noise generator, 1296-MHz","73","08","W3BSV",46,"Aug 73"
13,"Noise generators, using (HN)","68","08","K2ZSQ",79,"Aug 68"
13,"Noise-figure measurements for vhf","72","06","WB6NMT",36,"Jun 72"
13,"Noise-figure meter, automatic, for preamplifiers and converters","81","02","K9IMM",12,"Feb 81"
13,"Novel Methods for Measuring Cable Attenuation","89","05","OE2APM",65,"May 89"
13,"Ode to older oscilloscopes","88","01","KR6A",69,"Jan 88"
13,"Ohmmeter, wide-range","84","01","Bailey, John T.",53,"Jan 84"
13,"Oscillator, audio","73","02","W6GXN",50,"Feb 73"
13,"Oscillator, frequency measuring","72","04","W6IEL",16,"Apr 72"
13,"Oscillator, frequency measuring","72","12","Added notes",90,"Dec 72"
13,"Oscillator, two-tone, for ssb testing","72","04","W6GXN",11,"Apr 72"
13,"Oscilloscope calibrator (HN)","69","07","K4EEU",69,"Jul 69"
13,"Oscilloscope voltage calibrator","72","08","W6PBC",54,"Aug 72"
13,"Oscilloscope, putting it to work","69","09","Allen",64,"Sep 69"
13,"Oscilloscope, troubleshooting amateur gear with","69","08","Allen",52,"Aug 69"
13,"Panoramic adaptor spectrum analyzer design notes","83","09","Comments, K2CBY",12,"Sep 83"
13,"Panoramic adaptor spectrum analyzer design notes","83","09","WA6NCX/1",26,"Sep 83"
13,"Panoramic adaptor spectrum analyzer design notes","83","10","Short circuit",70,"Oct 83"
13,"Panoramic reception, simple","68","09","W2EEY",14,"Sep 68"
13,"Peak envelope power, how to measure","74","11","W5JJ",32,"Nov 74"
13,"PEP output power measurement","83","06","VK3AFO",10,"Jun 83"
13,"PEP output power measurement","83","09","Comments, K4KYV",12,"Sep 83"
13,"PEP Wattmeter","89","10","WA1SPI",76,"Oct 89"
13,"Phase meter, rf","73","04","VE2AYU, Korth",28,"Apr 73"
13,"Power meter, rf","73","10","K8EEG",26,"Oct 73"
13,"Power meter, rf, how to use (repair bench)","77","04","W6NBI",44,"Apr 77"
13,"Practically speaking","85","12","K4IPV",79,"Dec 85"
13,"Practically Speaking: analog meter movements: how to use them","90","03","K4IPV",68,"Mar 90"
13,"Practically Speaking: Antenna System Instruments","89","02","K4IPV",82,"Feb 89"
13,"Practically speaking: build your own time-domain refiectometer","87","06","K4IPV",69,"Jun 87"
13,"Practically speaking: building 'the poor man's spectrum analyzer'","87","03","K4IPV",99,"Mar 87"
13,"Practically speaking: function generator circuits - part2","87","01","K4IPV",89,"Jan 87"
13,"Practically speaking: generating low i-f frequencies","87","12","K4IPV",49,"Dec 87"
13,"Practically Speaking: More Digitally Generated Sawtooth Plus Triangle Waves","89","07","K4IPV",78,"Jul 89"
13,"Practically Speaking: review of a low cost commercial spectrum analyzer","90","02","K4IPV",64,"Feb 90"
13,"Practically speaking: revisiting 'the poor man's spectrum analyzer'","87","09","K4IPV",49,"Sep 87"
13,"Practically Speaking: RF Wattmeters and Antenna VSWR Meters","89","03","K4IPV",75,"Mar 89"
13,"Practically Speaking: some analog meter applications","90","04","K4IPV",36,"Apr 90"
13,"Practically Speaking: Test Equipment for Digital Electronics","89","11","K4IPV",76,"Nov 89"
13,"Practically speaking: testing diodes","87","02","K4IPV",65,"Feb 87"
13,"Practically speaking: troubleshooting DC power supplies with an oscilloscope","87","10","K4IPV",57,"Oct 87"
13,"Practically speaking: using antenna noise bridge","86","05","K4IPV",69,"May 86"
13,"Practically speaking: using the digital frequency counter- some pitfalls","88","04","K4IPV",47,"Apr 88"
13,"Practically speaking: using the multimeter","86","07","K4IPV",43,"Jul 86"
13,"Practically speaking: using the right multimeter","86","06","K4IPV",95,"Jun 86"
13,"Practically speaking: using voltage comparators","87","11","K4IPV",49,"Nov 87"
13,"Pre-scaler, vhf (HN)","73","02","W6MGI",57,"Feb 73"
13,"Precision capacitor","68","03","W4BRS",61,"Mar 68"
13,"Precision crystal frequency checker (Weekender)","90","06","N4TMI",44,"Jun 90"
13,"Prescaler, 1-GHz, for frequency counters","78","09","W6NBI",84,"Sep 78"
13,"Prescaler, 600-Hz, for use with electronic counters","80","04","WA1SPI",50,"Apr 80"
13,"Prescaler, Improvements for","73","10","W6PBC",30,"Oct 73"
13,"Prescaler, vhf, for digital frequency counters","76","02","K4GOK",32,"Feb 76"
13,"Probe, sensitive rf (HN)","74","12","W5JJ",61,"Dec 74"
13,"Q measurement","77","01","G3SBA",49,"Jan 77"
13,"Q Meters","89","12","W3QOM",49,"Dec 89"
13,"QRP wattmeter (HN)","84","07","W6XM",110,"Jul 84"
13,"Radio Shack meters, internal resistance","77","11","Katzenberger",94,"Nov 77"
13,"Receiver alignment","68","06","Allen",64,"Jun 68"
13,"Receiver sweep alignment system","84","11","WB6BIH",124,"Nov 84"
13,"Reflected power limiter","88","07","K4KI",63,"Jul 88"
13,"Reflectometers","69","12","K1YZW",65,"Dec 69"
13,"Regenerative detectors and a wideband amplifier for experimenters","70","03","W8YFB",61,"Mar 70"
13,"Repairs, thinking your way through","71","02","Allen",58,"Feb 71"
13,"Required dynamic range and design guides for EMI/RFI test receivers","83","11","DJ2LR",70,"Nov 83"
13,"Resistance standard, simple (HN)","71","03","W2OLU",65,"Mar 71"
13,"Resistance values below 1 ohm, measuring","77","09","W4OHT",66,"Sep 77"
13,"Resistance values below 1 ohm, measuring (letter)","78","01","W1PT",91,"Jan 78"
13,"Resistance values, measuring below 1 ohm","77","09","W4OHT",66,"Sep 77"
13,"Resistor decades, versatile","71","07","W4ATE",66,"Jul 71"
13,"Rf current probe (HN)","68","10","W6HPH",76,"Oct 68"
13,"Rf current readout, remote (HN)","78","05","W4ATE",87,"May 78"
13,"Rf detector, sensitive","73","04","WB9DNI",38,"Apr 73"
13,"Rf generator clip","68","03","W1DTY",58,"Mar 68"
13,"Rf power meter, low-level","72","10","W5WGF",58,"Oct 72"
13,"Rf power meter, part 1: instrument description and construction","81","05","N6YC",70,"May 81"
13,"Rf power meter, part 2: measurements and measurement accessories","81","06","N6YC",55,"Jun 81"
13,"Rf power meter, part 2: measurements and measurement accessories","81","10","Comments, W3NQN",6,"Oct 81"
13,"Rf signal generator, solid-state","70","07","VE5FP",42,"Jul 70"
13,"Rf wattmeter, accurate low power","77","12","WA4ZRP",38,"Dec 77"
13,"RTTY monitor scope, solid-state","71","10","WB2MPZ",33,"Oct 71"
13,"RTTY signal generator","71","03","W7ZTC",23,"Mar 71"
13,"RTTY signal generator","71","12","Short circuit",96,"Dec 71"
13,"RTTY test generator","78","01","WB9ATW",64,"Jan 78"
13,"RTTY test generator (HN)","73","01","W3EAG",67,"Jan 73"
13,"RTTY test generator (HN)","73","03","W3EAG",59,"Mar 73"
13,"RX impedance bridge","70","09","W2CTK",34,"Sep 70"
13,"RX impedance bridge, low-cost","73","05","W8YFB",6,"May 73"
13,"RX noise bridge, improvements to","77","02","W6BXI, W6NKU",10,"Feb 77"
13,"RX noise bridge, improvements to","77","09","Comments",100,"Sep 77"
13,"S-meter readings (HN)","68","06","W1DTY",56,"Jun 68"
13,"Safer suicide cord (HN)","71","03","K6JYO",64,"Mar 71"
13,"Sampling network, rf - the milli-tap","73","01","W6QJW",34,"Jan 73"
13,"Sensitive LF or HF field-strength meter","86","09","K1RGO",67,"Sep 86"
13,"Sensitive RF Voltmeter, The Weekender:","89","07","N2DCH",62,"Jul 89"
13,"Signal generator, tone moduiated for two and six meters","69","11","WA8OIK",54,"Nov 69"
13,"Signal generator, wide range","73","12","W6GXN",18,"Dec 73"
13,"Signal injection in ham receivers","68","05","Allen",72,"May 68"
13,"Signal source for 432 and 1296 MHz","68","09","K6RIL",20,"Sep 68"
13,"Signal tracing in ham receivers","68","04","Allen",52,"Apr 68"
13,"Simple DC Amplifier for Your Meter","89","06","W0JF",10,"Jun 89"
13,"Simple low-cost comb generator frequency calibrator","88","07","Martin, Larry",78,"Jul 88"
13,"Slotted line, how to use (repair bench)","77","05","W6NBI",58,"May 77"
13,"Slow-scan tv test generator","73","07","K4EEU",6,"Jul 73"
13,"Solid-state replacements","83","04","AK7N",46,"Apr 83"
13,"Spectrum analysers, understanding","74","06","WA5SNZ",50,"Jun 74"
13,"Spectrum analyzer for ssb","77","07","W3JW",24,"Jul 77"
13,"Spectrum analyzer tracking generator","78","04","W6URH",30,"Apr 78"
13,"Spectrum analyzer, dc-100 MHz","77","06","W6URH",16,"Jun 77"
13,"Spectrum analyzer, dc-100 MHz","77","12","Short circuit",69,"Dec 77"
13,"Spectrum analyzer, dc-100 MHz","79","02","Short circuit",94,"Feb 79"
13,"Spectrum analyzer, four channel","72","10","W9IA",6,"Oct 72"
13,"Spectrum analyzer, microwave","78","07","N6TX",34,"Jul 78"
13,"Ssb, signals, monitoring","72","03","W6VFR",35,"Mar 72"
13,"Standing wave indicator","83","11","GW8FKB",97,"Nov 83"
13,"Sweep generator, how to use","70","04","Allen",60,"Apr 70"
13,"Sweep generator, stable wideband","81","06","W7BAR",18,"Jun 81"
13,"Sweep generator, stable wideband","81","11","Short circuit",84,"Nov 81"
13,"Sweep response curves for low-frequency l-f's","71","03","Allen",56,"Mar 71"
13,"Switch-off flasher (HN)","71","07","Thomas",64,"Jul 71"
13,"Swr bridge","71","10","WB2ZSH",55,"Oct 71"
13,"Swr bridge (HN)","72","05","WA5TFK",66,"May 72"
13,"Swr bridge and power meter, integrated","70","05","W6DOB",40,"May 70"
13,"Swr bridge readings (HN)","73","08","W6FPO",63,"Aug 73"
13,"SWR bridges","86","03","K2LB",37,"Mar 86"
13,"Swr indicator, aural, for the visually handicapped","76","05","K6HTM",52,"May 76"
13,"Swr indicator, how to use (repair bench)","77","01","W6NBI",66,"Jan 77"
13,"Swr measuring at high frequencies","79","05","DJ2LR",34,"May 79"
13,"Swr meter","70","10","W6VSV",6,"Oct 70"
13,"Swr meter","78","11","WB6AFT",68,"Nov 78"
13,"Swr meter for the high-frequency bands","81","10","WB6AFT",62,"Oct 81"
13,"Swr meter for the high-frequency bands","82","03","Comments, WA4UPN, WB6AFT",36,"Mar 82"
13,"Swr meter, improving (HN)","76","05","W5NPD",68,"May 76"
13,"Swr meters, direct reading and expanded scale","72","05","WA4WDK",28,"May 72"
13,"Swr meters, direct reading and expanded scale","72","12","Correction",90,"Dec 72"
13,"Test DBMs for diode leakage","87","06","WB6BIH",86,"Jun 87"
13,"Test probe accessory (HN)","77","07","W2IMB",89,"Jul 77"
13,"Test-equipment mainframe","79","07","W4MB",52,"Jul 79"
13,"Tester for 6146 tubes (HN)","78","08","W6KNE",81,"Aug 78"
13,"Testing power tubes","78","04","K4IPV",60,"Apr 78"
13,"The Guerri report: signal processing","84","12","W6MGI",156,"Dec 84"
13,"Time and frequency standards: part1","83","11","Martin, Vaughn D.",36,"Nov 83"
13,"Time and frequency standards: part2","83","12","Martin, Vaughn D.",31,"Dec 83"
13,"Time-base oscillators, improved calibration","77","03","WA7LUJ, WA7KMR",70,"Mar 77"
13,"Time-domain reflectometry, experimenter's approach to","71","05","WA0PIA",22,"May 71"
13,"Toroid permeability meter","77","06","W6RJO",46,"Jun 77"
13,"Transconductance tester for fets","71","09","W6NBI",44,"Sep 71"
13,"Transformer shorts","68","07","W6BLZ",36,"Jul 68"
13,"Transistor and diode tester","70","11","ZL2AMJ",65,"Nov 70"
13,"Transistor curve tracer","73","07","WA9LCX",52,"Jul 73"
13,"Transistor curve tracer","74","04","Short circuit",63,"Apr 74"
13,"Transistor Lead Identification with a DVM","89","10","K0GSS",62,"Oct 89"
13,"Transistor tester","68","07","WA6NIL",48,"Jul 68"
13,"Transistor tester for leakage and gain","68","05","W4BRS",68,"May 68"
13,"Transistor tester, shirt pocket","76","07","W0MAY",40,"Jul 76"
13,"Transmitter tuning aid: buffer your load with this resistive network (weekender)","84","02","K4KI",52,"Feb 84"
13,"Transmitter tuning unit for the blind","71","06","W9NTP",60,"Jun 71"
13,"Trapezoidal monitor scope","69","12","VE3CUS",22,"Dec 69"
13,"Troubleshooting around fets","68","10","Allen",42,"Oct 68"
13,"Troubleshooting by resistance measurement","68","11","Allen",62,"Nov 68"
13,"Troubleshooting transistor ham gear","68","07","Allen",64,"Jul 68"
13,"Tune-up method, low duty-cycle for transmitters (HN)","83","08","K4KI",62,"Aug 83"
13,"Tune-up method, low duty-cycle for transmitters (HN)","83","12","Comments, W5XW",11,"Dec 83"
13,"Tune-up method, low duty-cycle for transmitters (HN)","84","01","Comments, K4KI",11,"Jan 84"
13,"Tuneup, safe, silent","84","12","K4KI",123,"Dec 84"
13,"Turn-off timer for portable equipment","76","09","W5OXD",42,"Sep 76"
13,"TVI locator","78","08","W6BD",24,"Aug 78"
13,"Two in one: trace doubler for CRO, and square wave and pulse generator (HN)","90","01","Short circuit",26,"Jan 90"
13,"Two in one: Trace doubler for CRO, and square wave and pulse generator (HN)","88","12","Tseng Liao",26,"Dec 88"
13,"Two-tone generator","82","06","N1RM",32,"Jun 82"
13,"Two-tone signal generator","86","02","YB9ATA/WA7AQN",25,"Feb 86"
13,"Two-tone signal generator","86","04","Short circuit",45,"Apr 86"
13,"Two-tone signal generator","86","06","Short circuit",36,"Jun 86"
13,"Two-tone signal generator (HN)","82","09","K4KI",77,"Sep 82"
13,"Uhf tuner tester for tv sets (HN)","69","09","Schuler",73,"Sep 69"
13,"Understanding noise figure","87","04","Gruchalla, Michael",89,"Apr 87"
13,"Using the Astro 103 as a frequency counter (HN)","83","06","W4ATE",69,"Jun 83"
13,"Vacuum tubes, testing high-power (HN)","72","03","W2OLU",64,"Mar 72"
13,"Versatile Transistor/Diode Tester","89","08","W5JQE & W2YM",30,"Aug 89"
13,"VHF noise bridge","86","07","OE2APM/AA3K",10,"Jul 86"
13,"Vhf pre-scaler, improvements for","73","10","W6PBC",30,"Oct 73"
13,"Vhf prescaler","78","06","W8CHK",92,"Jun 78"
13,"VHF/UHF world","84","10","W1JR",55,"Oct 84"
13,"Video monitor, inexpensive","83","04","K8CG",12,"Apr 83"
13,"Video monitor, inexpensive","83","08","Comments, K9TA",10,"Aug 83"
13,"VLF dip meter, no-adjust bias for (HN)","80","07","WB3IDJ",69,"Jul 80"
13,"Voltage calibrator for digital voltmeters","78","07","W6NBI",66,"Jul 78"
13,"Voltage calibrator for digital voltmeters","79","02","Short circuit",94,"Feb 79"
13,"Voltmeter calibrator, precision","78","06","Woods, Hubert",94,"Jun 78"
13,"Voltmeter, improved transistor, part I","68","04","Maddever",74,"Apr 68"
13,"Voltmeter, transistor, part II","68","07","Maddever",60,"Jul 68"
13,"Vom/vtvm, added uses for (HN)","73","01","W7DI",67,"Jan 73"
13,"VSWR and power meter, automatic","80","05","W0INK",34,"May 80"
13,"VSWR bridge, broadband power-tracking","79","08","K1ZDI",72,"Aug 79"
13,"VSWR indicator, computing","77","01","WB9CYY",58,"Jan 77"
13,"VSWR indicator, computing","77","05","Short circuit",94,"May 77"
13,"Vtvm modification","69","02","W6HPH",51,"Feb 69"
13,"Vtvm, convert to an IC voltmeter","74","12","K6VCI",42,"Dec 74"
13,"Wattmeter, low power (letter)","80","01","W0DLQ",6,"Jan 80"
13,"Wavemeter, indicating","70","12","W6NIF",26,"Dec 70"
13,"Wavemeter, indicating","71","04","Short circuit",72,"Apr 71"
13,"Weak-signal source, 144 and 432 MHz","70","03","K6JC",58,"Mar 70"
13,"Weak-signal source, stable, variable-output","71","09","K6JYO",36,"Sep 71"
13,"Weather radar, 10-GHZ","83","09","K4TWJ",61,"Sep 83"
13,"Wide range inductance meter","83","02","K9EBA",52,"Feb 83"
13,"Wide-range RF power meter","86","04","KA8OBL",24,"Apr 86"
13,"Wideband Frequency Analyzer","89","11","AA4FB",9,"Nov 89"
13,"Wien Bridge oscillators, voltage-controlled resistance for","80","02","WA5SNZ",56,"Feb 80"
13,"Wien Bridge oscillators, voltage-controlled Zener diode test circuit","83","02","W3PHK",52,"Feb 83"
13,"WWV receiver, simple regenerative","73","04","WA5SNZ",42,"Apr 73"
13,"WWV-WWVH, amateur applications for","72","01","W3FQJ",53,"Jan 72"
13,"WWVB signal processor","76","03","W9BTI",28,"Mar 76"
13,"Zener tester, low-voltage (HN)","69","11","K3DPJ",72,"Nov 69"
14,"8080 logical instructions","77","09","WB4HYJ, Rony, Titus",89,"Sep 77"
14,"8080 microcomputer output instructions","76","03","WB4HYJ, Rony, Titus",54,"Mar 76"
14,"Accumulator I/O versus memory I/O","76","06","WB4HYJ, Rony, Titus",64,"Jun 76"
14,"An RS-232 to TTL interface","82","11","WD4KGI",70,"Nov 82"
14,"Calculator or computer - which to buy?","82","11","W4MB",86,"Nov 82"
14,"Computer rfi (letter)","81","06","KA5HJI",8,"Jun 81"
14,"Computer, satellite, for under $150","80","03","WB6POU",12,"Mar 80"
14,"CW keyboard using the APPLE II computer","80","10","W6WR",60,"Oct 80"
14,"CW keyboard, Microprocessor controlled","78","01","WB2DFA",81,"Jan 78"
14,"CW trainer/keyer using a single-chip microcomputer","79","08","N6TY",16,"Aug 79"
14,"Data converters","77","10","WA1MOP",79,"Oct 77"
14,"Data retrieval program using the APPLE II computer (HN)","81","10","WB6YHS",75,"Oct 81"
14,"Decision, how does a microcomputer make a","76","08","WB4HYJ, Titus, Rony",74,"Aug 76"
14,"Device-select pulses, generating input/output","76","04","WB4HYJ, Titus, Rony",44,"Apr 76"
14,"Digital keyboard entry system","78","09","N2YK/N2GW",92,"Sep 78"
14,"Frequency counters, CMOS timing circuit for (HN)","82","07","Bevel, David H.",72,"Jul 82"
14,"Ham gear controller: part 1","82","10","N3CA",12,"Oct 82"
14,"Ham gear controller: part 2","82","11","N3CA",25,"Nov 82"
14,"How microprocessors fit into scheme of computers and controllers","76","01","WB4HYJ, Rony, Titus",36,"Jan 76"
14,"IC tester using the KIM-1","78","11","W3GUL",74,"Nov 78"
14,"Input/output device, what is a?","76","02","WB4HYJ, Rony, Titus",50,"Feb 76"
14,"Interfacing a 10-bit DAC (Microprocessors)","78","04","Rony, Titus, WB4HYJ",66,"Apr 78"
14,"Interfacing a digital multimeter with an 8080-based microcomputer","76","09","WB4HYJ, Rony, Titus",66,"Sep 76"
14,"Internal registers, 8080","77","02","Rony, Titus, WB4HYJ",63,"Feb 77"
14,"Introduction to microprocessors","75","12","WB4HYJ, Rony, Titus",32,"Dec 75"
14,"Introduction to microprocessors","76","05","Comments, WB4FAR",63,"May 76"
14,"lnterrupts, microcomputer","76","12","WB4HYJ, Rony, Titus",66,"Dec 76"
14,"Logical instructions","77","07","Titus, WB4HYJ, Rony",83,"Jul 77"
14,"Microcomputer-based contest keyer","81","01","K9CW",36,"Jan 81"
14,"Microprocessor repeater controller","83","04","KB5F",56,"Apr 83"
14,"MOV and MVI 8080 instructions","77","03","Titus, WB4HYJ, Rony",74,"Mar 77"
14,"Radio Shack ASCII keyboard encoder for microprocessor-controlled CW keyboard using the (HN","80","10","VE7ZV",72,"Oct 80"
14,"Register pair instruction","77","06","Rony, Titus, WB4HYJ",76,"Jun 77"
14,"Software UAR/T, interfacing a","76","11","WB4HYJ, Rony, Titus",60,"Nov 76"
14,"Substitution of software for hardware","76","07","WB4HYJ, Rony, Titus",62,"Jul 76"
14,"UAR/T, how it works","76","02","Titus",58,"Feb 76"
14,"Vectored interrupts","77","01","WB4HYJ, Rony, Titus",74,"Jan 77"
14,"Video display, simple","78","12","VK3AOH",46,"Dec 78"
15,"24-hour clock, digital","77","03","WB6AFT",44,"Mar 77"
15,"Ac-line switching precautions (HN)","81","07","W5PGG",69,"Jul 81"
15,"Active bandpass filters","77","12","WB6GRZ",49,"Dec 77"
15,"Active bandpass filters","79","02","Short circuit",94,"Feb 79"
15,"Admittance, impedance and circuit analysis","77","08","Anderson",76,"Aug 77"
15,"Admittance, impedance and circuit analysis","79","02","Short circuit",94,"Feb 79"
15,"Air pressure, measuring across transmitting tubes (HN)","80","01","W4PSJ",89,"Jan 80"
15,"Alarm, wet basement (HN)","72","04","W2EMF",68,"Apr 72"
15,"ALC circuits, improving amplifier: part1","84","08","WA8AJN",40,"Aug 84"
15,"ALC circuits, improving amplifier: part2","84","09","WA8AJN",38,"Sep 84"
15,"Amateur anemometer","68","06","W6GXN",52,"Jun 68"
15,"Amateur anemometer","68","08","Short circuit",34,"Aug 68"
15,"Amateur FSK: A spectral analysis","86","12","WA6NCX",42,"Dec 86"
15,"Amateur Radio in Space - a bibliography","68","08","W6OLO",60,"Aug 68"
15,"Amateur Radio in Space - a bibliography","68","10","Addenda",77,"Oct 68"
15,"Amplifier for 220 MHz, stripline kilowatt","82","04","W2GN",12,"Apr 82"
15,"Amplitude compandored sideband","80","12","WB6JNN",48,"Dec 80"
15,"An Audio Patch Panel for The Multimode Station","89","12","KB6IC",65,"Dec 89"
15,"An Inexpensive VFO for the Yaesu FT-102","89","11","VE3RF",62,"Nov 89"
15,"Analog-to-digital display converter for the visually handicapped","81","01","KB7JW",44,"Jan 81"
15,"Antenna masts, design for pipe","74","09","W3MR",52,"Sep 74"
15,"Antenna masts, design for pipe","75","05","Added design notes (letter)",75,"May 75"
15,"Antennas and capture area","69","11","K6MIO",42,"Nov 69"
15,"Audio to microwave amplifier, build your own","84","03","Gruchalla, Michael",12,"Mar 84"
15,"Bandpass filter design","73","12","K4KJ",36,"Dec 73"
15,"Bandpass filters for 50 and 144 MHz, etched","71","02","W5KHT",6,"Feb 71"
15,"Bandpass filters, single-pole","69","09","W6HPH",51,"Sep 69"
15,"Bandpass filters, top-coupled","77","06","Anderson",34,"Jun 77"
15,"Bandspreading techniques for resonant circuits","77","02","Anderson",46,"Feb 77"
15,"Bandspreading techniques for resonant circuits","77","12","Short circuit",69,"Dec 77"
15,"Basic electronic units","68","10","W2DXH",18,"Oct 68"
15,"Batteries, selecting for portable equipment","73","08","WB0AIK",40,"Aug 73"
15,"Battery charging (letter)","80","11","Carlson",6,"Nov 80"
15,"Bicycle-powered station","84","12","W1BG",25,"Dec 84"
15,"Bipolar-fet amplifiers","76","02","W6HDM",16,"Feb 76"
15,"Bipolar-fet amplifiers","76","09","Comments, Worcester",76,"Sep 76"
15,"Branch-line hybrid: part1","84","04","WA2EWT",107,"Apr 84"
15,"Branch-line hybrid: part2","84","05","WA2EWT",93,"May 84"
15,"Broadband amplifier uses mospower fet","76","12","Oxner",32,"Dec 76"
15,"Broadband amplifier, bipolar","75","04","WB4KSS",58,"Apr 75"
15,"Broadband amplifier, wide-range","74","04","W6GXN",40,"Apr 74"
15,"Broadband amplifier-attenuator","86","07","W7SX",59,"Jul 86"
15,"Build a 1-1000 MHz amplifier using MAR-4 MMICS","87","07","WB6BIH",33,"Jul 87"
15,"Build a QSO "beeper"","88","01","KF6CU",38,"Jan 88"
15,"Build your own supercharger","90","03","K3OF",22,"Mar 90"
15,"Build your own supercharger","90","05","Short circuit",78,"May 90"
15,"Buying topo maps","86","12","Comments: K3SKE",9,"Dec 86"
15,"Bypassing, rf, at uhf","72","01","WB6BHI",50,"Jan 72"
15,"Calculator, hand-held electronic, its function and use","76","08","W4MB",18,"Aug 76"
15,"Calculator, hand-held electronic, solving problems with it","76","09","W4MB",34,"Sep 76"
15,"Calculator-aided circuit analysis","77","10","Anderson",38,"Oct 77"
15,"Can I patent it?","87","03","K2LZ",8,"Mar 87"
15,"Capacitors, oil-filled (HN)","72","12","W2OLU",66,"Dec 72"
15,"CATVI (letter)","83","08","WB4NMA",10,"Aug 83"
15,"Changing fundamental constants of science","87","10","Comments: W4SXK",6,"Oct 87"
15,"Circuit figure of merit (letter)","80","12","W2JTP",6,"Dec 80"
15,"Cleaning electronic hardware (HN)","90","06","WA1FHB",57,"Jun 90"
15,"Clock, 24-hour digital","70","04","K4ALS",51,"Apr 70"
15,"Clock, 24-hour digital","70","09","Short circuit",76,"Sep 70"
15,"Coil-winding data, vhf and uhf","71","04","K3SVC",6,"Apr 71"
15,"Communicating on 474,083 GHz (light wave communications)","83","06","Comments, W6JTH",8,"Jun 83"
15,"Communicating on 474,083 GHz (light wave communications)","86","12","WA6EJO",10,"Dec 86"
15,"Communications receivers, designing for strong-signal performance","73","02","Moors",6,"Feb 73"
15,"Commutating filters","79","09","W6GXN",54,"Sep 79"
15,"Computer for the blind (HN)","82","06","W8MQW",69,"Jun 82"
15,"Computer-aided circuit analysis","70","08","K1ORV",30,"Aug 70"
15,"Contact bounce eliminators (letters)","77","11","W7IV",94,"Nov 77"
15,"Control By Tones","89","11","ZL2SX",42,"Nov 89"
15,"Converting vacuum tube equipment to solid-state","68","08","W2EEY",30,"Aug 68"
15,"Converting wavelength to inches (HN)","68","06","WA6SXC",56,"Jun 68"
15,"Crystal filters, monolithic","78","11","DK1AG",28,"Nov 78"
15,"Crystal use locator","80","11","WA6SWR",36,"Nov 80"
15,"Current flow?, which way does","68","07","W2DXH",34,"Jul 68"
15,"CW identifier, versatile","80","10","WB2BWJ",22,"Oct 80"
15,"CW identifier, versatile","82","02","Short circuit",70,"Feb 82"
15,"CW identifier, versatile, an improved memory for","82","02","WB2BWJ",24,"Feb 82"
15,"CW station, updating (HN)","82","10","KM5T",77,"Oct 82"
15,"Data bandwidths compared","82","12","W9JD/2",50,"Dec 82"
15,"Decibel, defining the","88","02","Gruchalla, Michael",51,"Feb 88"
15,"Design curves for loudness-compensated volume controls","90","05","Tseng Liao",30,"May 90"
15,"Digital clock, low-cost","76","02","WA6DYW",26,"Feb 76"
15,"Digital mixer, introduction","73","12","WB8IFM",42,"Dec 73"
15,"Digital readout system, simplified","74","03","W6OIS",42,"Mar 74"
15,"Double-balanced mixers","68","03","W1DTY",48,"Mar 68"
15,"Double-balanced modulator, broadband","70","03","WA6NCT",8,"Mar 70"
15,"DSB generators, audio-driven (HN)","80","07","W5TRS",68,"Jul 80"
15,"Earth anchors for guyed towers","80","05","W5QJR",60,"May 80"
15,"Earth currents (HN)","70","04","W7OUI",80,"Apr 70"
15,"Effective noise temperature, part 1: introduction and background","90","02","Michael Gruchalla",58,"Feb 90"
15,"Effective noise temperature, part 2: equivalent noise temperature and NF","90","03","Michael Gruchalla",33,"Mar 90"
15,"Effective radiated power (HN)","73","05","VE7CB",72,"May 73"
15,"Eimac 5CX1500A power pentode, notes on","80","08","K9XI",60,"Aug 80"
15,"Electrical units: their derivation and history","76","08","WB6EYV",30,"Aug 76"
15,"Electrolytic capacitors (letter)","81","06","WB8MKU",6,"Jun 81"
15,"Electrolytic capacitors, re-forming the oxide layer (HN)","78","07","K9MM",99,"Jul 78"
15,"Electromagnetic interference and the digital era","84","09","K3PUR",114,"Sep 84"
15,"Eliminating the matrix","72","05","KH6AP",60,"May 72"
15,"Elmer's notebook: The mysterious "Q"","88","09","W1SL",110,"Sep 88"
15,"EMI/RFI shielding: new techniques part1","84","01","Martin, Vaughn D.",72,"Jan 84"
15,"EMI/RFI shielding: new techniques part2","84","02","Martin, Vaughn D.",84,"Feb 84"
15,"Ezy tune, HW-5400 (HN)","90","01","AB4DP",70,"Jan 90"
15,"Ferrite beads","70","10","W5JJ",48,"Oct 70"
15,"Ferrite beads, how to use","73","03","K1ORV",34,"Mar 73"
15,"Fet biasing","72","11","W3FQJ",61,"Nov 72"
15,"Field-strength meter and volt-ohmmeter","79","02","WB6AFT",70,"Feb 79"
15,"Filter design, graphic","84","04","W6NRW",37,"Apr 84"
15,"Filter design, graphic","84","07","Short circuit",13,"Jul 84"
15,"Filter preamplifiers for 50 and 144 MHz, etched","71","02","W5KHT",6,"Feb 71"
15,"Filters (letter)","83","02","W6XM",8,"Feb 83"
15,"Filters (letter)","83","04","Comments, W3NQW",8,"Apr 83"
15,"Filters, active for direct-conversion receivers","74","04","W7ZOI",12,"Apr 74"
15,"Filters, bridged","82","10","W6MUR",51,"Oct 82"
15,"Fire extinguishers (letter)","71","07","W5PGG",68,"Jul 71"
15,"Fire protection","71","01","Darr",54,"Jan 71"
15,"Fire protection (letter)","71","08","K7QCM",62,"Aug 71"
15,"Fm techniques","69","09","W6SAI",8,"Sep 69"
15,"Fm techniques","70","06","Short circuit",79,"Jun 70"
15,"Four-quadrant curve tracer/analyzer","79","02","W1QXS",46,"Feb 79"
15,"Freon danger (letter)","72","05","WA5RTB",63,"May 72"
15,"Frequency counter as a synthesizer","77","09","DJ2LR",44,"Sep 77"
15,"Frequency divider, diode","80","08","W5TRS",54,"Aug 80"
15,"Frequency multipliers","71","08","W6GXN",6,"Aug 71"
15,"Frequency multipliers, transistor","70","06","W6AJF",49,"Jun 70"
15,"Frequency synchronization for scatter-mode propagation","71","09","K2OVS",26,"Sep 71"
15,"Frequency synthesis","69","12","WA5SKM",42,"Dec 69"
15,"Frequency synthesizer sidebands, filter reduces (HN)","77","06","K1PCT",80,"Jun 77"
15,"Frequency synthesizer, high-frequency","72","10","K2BLA",16,"Oct 72"
15,"Frequency synthesizers, how to design","76","07","DJ2LR",10,"Jul 76"
15,"Frequency synthesizers, how to design","76","10","Short circuit",85,"Oct 76"
15,"Frequency-lock loop","78","08","WA3ZKZ",17,"Aug 78"
15,"Function Generator: circuits from your signal generator - part 1","86","12","K4IPV",67,"Dec 86"
15,"Gamma-matching networks, how to design","73","05","W7ITB",46,"May 73"
15,"Glass semiconductors","69","07","W1EZT",54,"Jul 69"
15,"Graphical network solutions","69","12","W1NCK,W2CTK",26,"Dec 69"
15,"Gridded tubes, vhf-uhf effects in","69","01","W6UOV",8,"Jan 69"
15,"Ground plow","70","05","W1EZT",64,"May 70"
15,"Ground systems, notes on","80","05","K6WX",26,"May 80"
15,"Grounding and wiring","69","06","W1EZT",44,"Jun 69"
15,"Gyrator: a synthetic inductor","78","06","WB9ATW",96,"Jun 78"
15,"Ham radio techniques","84","05","W6SAI",63,"May 84"
15,"Ham radio techniques","84","10","W6SAI",106,"Oct 84"
15,"Ham radio techniques","85","01","W6SAI",75,"Jan 85"
15,"Ham radio techniques","85","02","W6SAI",59,"Feb 85"
15,"Ham radio techniques","85","03","W6SAI",83,"Mar 85"
15,"Ham radio techniques","85","05","W6SAI",66,"May 85"
15,"Ham radio techniques","85","06","W6SAI",51,"Jun 85"
15,"Ham radio techniques","85","07","W6SAI",59,"Jul 85"
15,"Ham radio techniques","85","08","W6SAI",90,"Aug 85"
15,"Ham radio techniques","85","10","W6SAI",75,"Oct 85"
15,"Ham radio techniques","85","11","W6SAI",67,"Nov 85"
15,"Ham radio techniques, fifty years ago","84","06","W6SAI",58,"Jun 84"
15,"Ham radio techniques: 9CXX revisited","87","12","W6SAI",83,"Dec 87"
15,"Ham Radio Techniques: Antennas, GFI, Capacitors and Fundamentals","89","12","W6SAI",57,"Dec 89"
15,"Ham radio techniques: electron-hole theory exposed as fraud","85","04","W6SAI",67,"Apr 85"
15,"Ham radio techniques: I have seen the future and it works","85","09","W6SAI",91,"Sep 85"
15,"Ham Radio techniques: line voltage and power tube life","88","07","W6SAI",60,"Jul 88"
15,"Ham radio techniques: radio-frequency interference","81","11","W6SAI",34,"Nov 81"
15,"Ham radio techniques: radio-frequency interference","81","12","W6SAI",30,"Dec 81"
15,"Ham Radio techniques: the joys of TVI or, were you on the air last night?","88","08","W6SAI",70,"Aug 88"
15,"Handy ante switch (Weekender)","90","02","W4E1N",18,"Feb 90"
15,"Harmonic generator, crystal-controlled","77","11","W1KNI",66,"Nov 77"
15,"Harmonic output, how to predict","74","11","Utne",34,"Nov 74"
15,"Harmonic product detector for QRP transceivers","83","06","W5FG",44,"Jun 83"
15,"Harmonics, Trapping stubborn","86","01","N1RC",99,"Jan 86"
15,"Heatsink problems, how to solve","74","01","WA5SNZ",46,"Jan 74"
15,"Hf synthesizer, higher resolution for","78","08","N4ES",34,"Aug 78"
15,"Hybrids and couplers, hf","70","07","W2CTK",57,"Jul 70"
15,"Hybrids and couplers, hf","70","12","Short circuit",72,"Dec 70"
15,"Hydroelectric station, amateur","77","09","K6WX",50,"Sep 77"
15,"Hyperbolic navigation (letter)","81","02","Burhans, Ralph W.",6,"Feb 81"
15,"Identifying Kerchunkers and Other Interference","89","12","K9GDF",74,"Dec 89"
15,"Impedance bridge measurement errors and corrections","79","05","K4KJ",22,"May 79"
15,"Impedance matching: a brief review","84","06","WD4C",49,"Jun 84"
15,"Impedance measurements using an SWR meter","79","04","K4QF",80,"Apr 79"
15,"Impedance-matching systems, designing","73","07","W7CSD",58,"Jul 73"
15,"Inductance or capacitance, a method for measuring (HN)","80","07","W2CHO",68,"Jul 80"
15,"Infrared communications (letter)","72","01","K2OAW",65,"Jan 72"
15,"Injection lasers (letter)","71","04","Mims",64,"Apr 71"
15,"Injection lasers, high power","71","09","Mims",28,"Sep 71"
15,"Instant balun (letter)","81","08","W8MQW",6,"Aug 81"
15,"Integrated circuits, part I","71","06","W3FQJ",40,"Jun 71"
15,"Integrated circuits, part II","71","07","W3FQJ",58,"Jul 71"
15,"Integrated circuits, part III","71","08","W3FQJ",50,"Aug 71"
15,"Interference problems, how to solve","78","07","ON4UN",93,"Jul 78"
15,"Interference, hi-fi (HN)","75","03","K6KA",63,"Mar 75"
15,"Interference, rf","70","12","W1DTY",12,"Dec 70"
15,"Interference, rf","73","03","WA3NFW",30,"Mar 73"
15,"Interference, rf (letter)","75","11","G3LLL",65,"Nov 75"
15,"Interference, rf, coaxial connectors can generate","76","06","W1DTY",48,"Jun 76"
15,"Interference, rf, its cause and cure","75","06","G3LLL",26,"Jun 75"
15,"Intermittent reception due to lightning (HN)","88","09","W2YW",39,"Sep 88"
15,"Intermittent voice operation of power tubes","71","01","W6SAI",24,"Jan 71"
15,"Introduction to Waveform Generators- pt 2","89","12","K4IPV",82,"Dec 89"
15,"Isotropic source and practical antennas","70","05","K6FD",32,"May 70"
15,"KWM 380 external control circuit (HN)","83","12","WA2RUD",96,"Dec 83"
15,"L-networks, how to design","74","02","W7LR",26,"Feb 74"
15,"L-networks, how to design","74","12","Short circuit",62,"Dec 74"
15,"Laser communications","70","11","W4KAE",28,"Nov 70"
15,"LC circuit calculations","77","02","W2OUX",68,"Feb 77"
15,"LED experiments","70","06","W4KAE",6,"Jun 70"
15,"Light-emitting diodes: theory and application","80","08","WB6AFT",12,"Aug 80"
15,"Lighthouse tubes for uhf","69","06","W6UOV",27,"Jun 69"
15,"Lightning location and detection","87","09","VY1CW",25,"Sep 87"
15,"Lightning protection for the amateur station","78","12","K9MM",18,"Dec 78"
15,"Lightning protection for the amateur station","79","07","Comments, W6RTK, WB2FBL",6,"Jul 79"
15,"Linear amplifier, 3CX800A7","84","08","K8RA",17,"Aug 84"
15,"Linear tuning, a fresh look at (HN)","80","08","W2OLU",74,"Aug 80"
15,"Linear-amplifier cost efficiency","80","07","W8MFL",60,"Jul 80"
15,"lnductors, how to use ferrite and powdered-iron for","71","04","W6GXN",15,"Apr 71"
15,"lnductors, how to use ferrite and powdered-iron for","72","05","Correction",63,"May 72"
15,"Local-oscillator waveform effects on spurious mixer responses","74","06","Robinson, Smith",44,"Jun 74"
15,"Low cost linear design and construction","82","12","W4MB",12,"Dec 82"
15,"Low-pass filter, integrated circuit","85","01","WB2KTG",59,"Jan 85"
15,"Lowpass filters for solid-state linear amplifiers","74","03","WA0JYK",38,"Mar 74"
15,"Lowpass filters for solid-state linear amplifiers","74","12","Short circuit",62,"Dec 74"
15,"Lunar-path nomograph","70","10","WA6NCT",28,"Oct 70"
15,"Marine installations, amateur, on small boats","74","08","W3MR",44,"Aug 74"
15,"Matching networks, how to design","78","04","Anderson, Leonard H.",44,"Apr 78"
15,"Matching techniques, broadband, for transistor rf amplifiers","77","01","WA7WHZ",30,"Jan 77"
15,"Microprocessors, introduction to","75","12","WB4HYJ, Rony, Titus",32,"Dec 75"
15,"Microwave rf generators, solid-state","77","04","W1HR",10,"Apr 77"
15,"Microwaves, getting started in","72","06","Roubal",53,"Jun 72"
15,"Microwaves, Introduction","72","01","W1CBY",20,"Jan 72"
15,"Mini-mobile","71","08","K9UQN",58,"Aug 71"
15,"Mismatched transmitter loads, affect of","69","09","W5JJ",60,"Sep 69"
15,"Mnemonics","69","12","W6NIF",69,"Dec 69"
15,"Mobile theft deterrent: The Weekender","87","02","W6WTU",81,"Feb 87"
15,"Modifying the Trio-Kenwood TS930S","86","04","WB9BXT",67,"Apr 86"
15,"Monolithic RF amplifiers","86","03","N6JH",22,"Mar 86"
15,"More electronic units","68","11","W1EZT",56,"Nov 68"
15,"Multi-function integrated circuits","72","10","W3FQJ",46,"Oct 72"
15,"Multiplexing, the how and why of","81","09","KH6N",60,"Sep 81"
15,"Mysterious spur on 160","83","05","N3BEK",73,"May 83"
15,"Mysterious spur on 160","83","11","Comments, K0KL, N3BEJ",95,"Nov 83"
15,"Navigational aid for small-boat operators","80","09","W5TRS",46,"Sep 80"
15,"NE5205 wideband RF amplifier","86","09","Gruchalla, Michael",30,"Sep 86"
15,"NE5205 wideband RF amplifier","87","01","Short circuit",72,"Jan 87"
15,"Network, the ladder","76","12","W2CHO",48,"Dec 76"
15,"Networks, transmitter matching","73","01","W6FFC",6,"Jan 73"
15,"Neutralizing 572B final at 1500 watts output (HN)","84","06","W2YW",63,"Jun 84"
15,"Neutralizing small-signal amplifiers","70","09","WA4WDK",40,"Sep 70"
15,"New uses for old tuners","88","01","W6WTU",25,"Jan 88"
15,"Ni-cad battery charging (letter)","80","07","W6NRM",6,"Jul 80"
15,"Noise bridge for impedance measurements","73","01","YA1GJM",62,"Jan 73"
15,"Noise bridge for impedance measurements","79","05","Comments, W6BXI",6,"May 79"
15,"Noise cancellation circuit","84","03","K1RGO",75,"Mar 84"
15,"Noise figure, meaning of","69","03","K6MIO",26,"Mar 69"
15,"Operation upgrade: part 1","81","09","W6BNB",12,"Sep 81"
15,"Operation upgrade: part 2","81","10","W6BNB",28,"Oct 81"
15,"Operational amplifiers","69","11","WB2EGZ",6,"Nov 69"
15,"Optimum pi-network design","80","09","DL9LX",50,"Sep 80"
15,"Passive lumped constant 90-degree phase-difference networks","79","03","K6ZV",70,"Mar 79"
15,"PCB "threat" (letter)","80","09","VE5UK",66,"Sep 80"
15,"Peaked lowpass: a look at the ultraspherical filter","84","06","W7ZOI",96,"Jun 84"
15,"Personal message center","90","02","AA4NX",44,"Feb 90"
15,"Phase detector, harmonic","74","08","W5TRS",40,"Aug 74"
15,"Phase modulator, PLL (HN)","85","06","VE3FHM",117,"Jun 85"
15,"Phase-locked loops","78","07","WB6FOC",54,"Jul 78"
15,"Phase-locked loops, IC","71","09","W3FQJ",54,"Sep 71"
15,"Phase-locked loops, IC, experiments with","71","10","W3FQJ",58,"Oct 71"
15,"Phase-shift network, 90-degree, offers 2:1 bandwidth","80","02","K6ZV",66,"Feb 80"
15,"Phase-shift networks, design criteria for","70","06","G3NRW",34,"Jun 70"
15,"Photovoltaic cells: a progress report","83","12","WD8AHO",52,"Dec 83"
15,"Photovoltaic cells: a progress report","84","02","Comments: K6KVX, WD8AHO, etal",10,"Feb 84"
15,"Pi and pi-L networks","68","11","W6SAI",36,"Nov 68"
15,"Pi network design","72","09","W6FFC",6,"Sep 72"
15,"Pi network design","78","03","Anderson, Leonard H.",36,"Mar 78"
15,"Pi network design","79","04","Comments Anderson, Leonard H.",6,"Apr 79"
15,"Pi network design and analysis","77","09","W2HB",30,"Sep 77"
15,"Pi network design and analysis","77","12","Short circuit",68,"Dec 77"
15,"Pi network inductors (letter)","72","12","W7IV",78,"Dec 72"
15,"Pi networks, series-tuned","71","10","W2EGH",42,"Oct 71"
15,"Plasma-diode experiments","80","02","Stockman, Harry",62,"Feb 80"
15,"Polymer film transforms mechanical energy to electrical energy","84","12","WA4KFZ",55,"Dec 84"
15,"Power amplifiers, high-efficiency rf","74","10","WB8LQK",8,"Oct 74"
15,"Power dividers and hybrids","72","08","W1DAX",30,"Aug 72"
15,"Power FETS: trend for VHF amplifiers","84","01","Peters, Daniel and W7PUA",12,"Jan 84"
15,"Power speaker enhances mobile operation (weekender)","88","01","K1ZJH",83,"Jan 88"
15,"Power supplies, survey of solid-state","70","02","W6GXN",25,"Feb 70"
15,"Power, voltage and impedance nomograph","71","04","W2TQK",32,"Apr 71"
15,"Practically speaking: battery problems, pt1","87","07","K4IPV",62,"Jul 87"
15,"Practically speaking: feedback","88","05","K4IPV",60,"May 88"
15,"Practically speaking: intermittents, pt.1","85","11","K4IPV",75,"Nov 85"
15,"Practically speaking: intermittents, pt.2","85","12","K4IPV",79,"Dec 85"
15,"Practically speaking: Overview of op amps- part 1","88","11","K4IPV",100,"Nov 88"
15,"Practically speaking: overview of op amps- part 2","88","12","K4IPV",83,"Dec 88"
15,"Practically Speaking: potpourri","90","05","K4IPV",71,"May 90"
15,"Practically speaking: repairing flood damage","85","10","K4IPV",95,"Oct 85"
15,"Prerecorded messages help the hearing impaired (HN)","84","09","W2QLI",87,"Sep 84"
15,"Printed-circuit boards, photofabrication of","71","09","Hutchinson",6,"Sep 71"
15,"Programmable calculator simplifies antenna design (HN)","74","05","W3DVO",70,"May 74"
15,"Programmable calculators, using","75","03","W3DVO",40,"Mar 75"
15,"Proportional temperature control for crystal ovens","70","01","VE5FP",44,"Jan 70"
15,"Pulse-duration modulation","72","11","W3FQJ",65,"Nov 72"
15,"Q factor, understanding","74","12","W5JJ",16,"Dec 74"
15,"Q systems","80","11","W1IUZ",6,"Nov 80"
15,"QRP operation","68","12","W7OE",36,"Dec 68"
15,"Quartz crystal resonators","86","02","Boddaert, Peter",85,"Feb 86"
15,"Quartz crystals","79","02","WB2EGZ",37,"Feb 79"
15,"Radiation hazard, rf","75","09","W1DTY",4,"Sep 75"
15,"Radiation hazard, rf","75","12","Correction",59,"Dec 75"
15,"Radio communications links","69","10","W1EZT",44,"Oct 69"
15,"Radio observatory, vhf","74","07","Ham",44,"Jul 74"
15,"Radio sounding system","78","07","KL7GLK",42,"Jul 78"
15,"Radio-frequency interference","73","03","WA3NFW",30,"Mar 73"
15,"Radiotelegraph translator and transcriber","71","11","W7CUU, K7KFA",8,"Nov 71"
15,"Ramp generators","68","12","W6GXN",56,"Dec 68"
15,"Rating tubes for linear amplifier service","71","03","W6UOV, W6SAI",50,"Mar 71"
15,"RC active filters using op amps","76","10","W4YIB",54,"Oct 76"
15,"RC active filters using op amps","78","06","Comments, W6NRM",102,"Jun 78"
15,"RC active filters using op amps","79","02","Short circuit",94,"Feb 79"
15,"Reactance problems, nomograph for","70","09","W6NIF",51,"Sep 70"
15,"Relay, inexpensive automatic send/receive","82","05","W0PBV",40,"May 82"
15,"Remedy for RFI (comment)","88","07","K6WX",9,"Jul 88"
15,"Repeater controller, microprocessor-band","82","03","KB0CY",12,"Mar 82"
15,"Resistor performance at high frequencies","71","10","K1ORV",36,"Oct 71"
15,"Resistors, frequency sensitive (HN)","70","12","W8YFB",54,"Dec 70"
15,"Resistors, frequency sensitive (letter)","71","07","W5UHV",68,"Jul 71"
15,"Resonant circuits","84","04","WD4C",12,"Apr 84"
15,"Rf amplifier, wideband","75","04","WB4KSS",58,"Apr 75"
15,"Rf autotransformers, wideband","76","11","K4KJ",10,"Nov 76"
15,"Rf chokes, performance above and below resonance","78","06","WA5SNZ",40,"Jun 78"
15,"Rf exposure","79","09","WA2UMY",26,"Sep 79"
15,"RF filters, Build narrowband","86","03","WB4EHS",10,"Mar 86"
15,"RF filters, Build narrowband","86","06","Short circuit",36,"Jun 86"
15,"Rf interference, suppression in telephones","77","03","K6LDZ",79,"Mar 77"
15,"Rf power distributor, the","81","12","W3BYM",48,"Dec 81"
15,"Rf power transistors, how to use","70","01","WA7KRE",8,"Jan 70"
15,"Rf power-detecting devices","70","06","K6JYO",28,"Jun 70"
15,"Rf radiation, environmental aspects of","79","12","K6YB",24,"Dec 79"
15,"Rfi cures: avoiding side effects","81","09","WB9TQG",52,"Sep 81"
15,"Rfi cures: avoiding side effects","81","12","Comments WB7SYB, WB9TQG, VE2QO",6,"Dec 81"
15,"RFI, solving the problems of","84","09","W2YW",124,"Sep 84"
15,"Rotary-dial mechanism for digitally tuned transceivers","80","07","K3CU",14,"Jul 80"
15,"Russian Woodpecker, the: a continuing nuisance","84","11","KR7L",37,"Nov 84"
15,"Safety circuit, pushbutton switch (HN)","77","02","K3AFF, WA1FHB",73,"Feb 77"
15,"Safety in the ham shack","69","03","Darr, James",44,"Mar 69"
15,"Satellite communications, first step to","72","11","K1MTA",52,"Nov 72"
15,"Satellite communications, first step to","73","04","Added notes (letter)",73,"Apr 73"
15,"Satellite picture transmission, recording","68","11","W6CCN",6,"Nov 68"
15,"Satellite signal polarization","72","12","KH6IJ",6,"Dec 72"
15,"Semiconductor curve tracing simplified","80","08","W6HPH",34,"Aug 80"
15,"Signal detection and communication in the presence of white noise","69","02","WB6IOM",16,"Feb 69"
15,"Signal-strength, measuring","80","08","W2YE",20,"Aug 80"
15,"Silver/silicone grease (HN)","71","05","W6DDB",63,"May 71"
15,"Simple circuit prevents amplifier control relay failure (HN)","90","02","NO7G",30,"Feb 90"
15,"Simple eeprom programmer","90","01","WA2IHE",40,"Jan 90"
15,"Simple formula for microstrip impedance (HN)","77","12","W1HR",72,"Dec 77"
15,"Single-tuned interstage networks, designing","68","10","K6ZGQ",59,"Oct 68"
15,"Smith chart, how to use","70","11","W1DTY",16,"Nov 70"
15,"Smith chart, how to use","71","12","Correction",76,"Dec 71"
15,"Solar activity, aspects of","68","06","K3CHP",21,"Jun 68"
15,"Solar energy","74","07","W3FQJ",54,"Jul 74"
15,"Solar power for your ham station","84","12","NH6N",14,"Dec 84"
15,"Solar power for your ham station","85","03","Short circuit",145,"Mar 85"
15,"Solid-state amplifier switching (HN)","80","08","WB2HTH",75,"Aug 80"
15,"Sorting and inventory of standard resistor values, computer program for","81","06","WA6SWR",66,"Jun 81"
15,"Speech clippers, rf, performance of","72","11","G6XN",26,"Nov 72"
15,"Speed of light (letter)","80","04","WB2AOT",6,"Apr 80"
15,"Speed of light (letter)","80","08","W4MLM",6,"Aug 80"
15,"Speed of light (letter)","80","09","KL6WU",67,"Sep 80"
15,"Speed of light, observations on, through the metric system","80","01","W7ITB",62,"Jan 80"
15,"Square roots, finding (HN)","73","09","K9DHD",67,"Sep 73"
15,"Square roots, finding (HN)","74","03","Increased accuracy (letter)",55,"Mar 74"
15,"Staircase generator (C&T)","76","06","W1DTY",52,"Jun 76"
15,"Standing-wave ratios, importance of","73","07","W2HB",26,"Jul 73"
15,"Standing-wave ratios, importance of","74","05","Correction (letter)",67,"May 74"
15,"Stress analysis of antenna systems","71","10","W2FZJ",23,"Oct 71"
15,"Super beep circuit for repeaters","81","07","KP4AQI",48,"Jul 81"
15,"Switchable bandwidth crystal filter","90","02","N2DCH",22,"Feb 90"
15,"Synthesizer design (letters)","77","11","WB2CPA",94,"Nov 77"
15,"Synthesizer system, simple (HN)","79","07","AA7M",78,"Jul 79"
15,"T coupler, the (HN)","80","11","K3NXU",78,"Nov 80"
15,"Talking clock (letter)","80","02","N9KV",75,"Feb 80"
15,"Talking digital readout (letter)","80","05","N5AF",6,"May 80"
15,"Talking digital readout for amateur transceivers","79","06","N9KV",58,"Jun 79"
15,"Temperature sensor, remote (HN)","77","02","WA1NJG",72,"Feb 77"
15,"Tetrodes, external-anode","69","06","W6SAI",23,"Jun 69"
15,"The Guerri report","85","01","W6MGI",124,"Jan 85"
15,"The Guerri report","85","03","W6MGI",158,"Mar 85"
15,"The Guerri report","85","04","W6MGI",157,"Apr 85"
15,"The Guerri report","85","07","W6MGI",124,"Jul 85"
15,"The Guerri report","85","08","W6MGI",124,"Aug 85"
15,"The Guerri report","85","11","W6MGI",140,"Nov 85"
15,"The Guerri report: a busy signal from space","85","05","W6MGI",165,"May 85"
15,"The Guerri report: computer technology","84","11","W6MGI",54,"Nov 84"
15,"The Guerri report: computer technology","84","12","Short circuit",8,"Dec 84"
15,"The Guerri report: predicting equipment failure","85","06","W6MGI",125,"Jun 85"
15,"The Guerri report: RF effects the good and the bad","85","10","W6MGI",142,"Oct 85"
15,"The Guerri report: RF power supplies achieve high efficiency","85","09","W6MGI",157,"Sep 85"
15,"The Guerri report: superchips come of age","85","02","W6MGI",126,"Feb 85"
15,"Thermoelectric power supplies","68","09","K1AJE",48,"Sep 68"
15,"Thermometer, electronic","70","04","VK3ZNV",30,"Apr 70"
15,"Three-phase motors (HN)","68","08","W6HPH",79,"Aug 68"
15,"Thyristors, introduction to","70","10","WA7KRE",54,"Oct 70"
15,"Timer, electronic (HN)","82","03","W9EBT",65,"Mar 82"
15,"Toroid coils, 88-mH (HN)","76","06","WA1NJG",70,"Jun 76"
15,"Toroidal coil inductance (HN)","75","09","W3WLX",26,"Sep 75"
15,"Toroids, calculating inductance of","72","02","WB9FHC",50,"Feb 72"
15,"Torolds, plug-in (HN)","72","01","K8EEG",60,"Jan 72"
15,"Transistor amplifiers, tabulated characteristics of","71","03","W5JJ",30,"Mar 71"
15,"Trig functions on a pocket calculator (HN)","75","11","W9ZTK",60,"Nov 75"
15,"Tube shields (HN)","76","07","W9KNI",69,"Jul 76"
15,"Tubes, surplus (letter)","80","08","W2JTP",6,"Aug 80"
15,"Tubes, surplus (letter)","80","09","Sellati",66,"Sep 80"
15,"Tuning, Current-controlled","69","01","K2ZSQ",38,"Jan 69"
15,"TV sweep tubes in linear service, full-blast operation of","68","04","W6SAI, W6UOV",9,"Apr 68"
15,"TVI locator","78","08","W6BD",23,"Aug 78"
15,"Two-tone signal generator","86","02","YB9ATA/WA7AQN",25,"Feb 86"
15,"Two-tone signal generator","86","04","Short circuit",45,"Apr 86"
15,"Two-tone signal generator","86","06","Short circuit",36,"Jun 86"
15,"Understanding computer-generated RFI","90","03","NU1N",75,"Mar 90"
15,"Understanding over-the-horizon radar","90","02","NU1N",9,"Feb 90"
15,"Understanding over-the-horizon radar","90","04","Comments, AG4R",6,"Apr 90"
15,"Understanding over-the-horizon radar","90","05","Comments, AD1G",9,"May 90"
15,"Using CAD to rewind transformers","86","12","W6WTU",83,"Dec 86"
15,"Using ICOM IC-32AT As a Crossband Mini-Repeater","89","12","KW5O",41,"Dec 89"
15,"Using spreadsheet programs for amateur radio projects","86","12","AD1B",95,"Dec 86"
15,"Using the Spectrum Monitor","86","11","Comments: KI6DW",9,"Nov 86"
15,"Vacuum-tube amplifiers, tabulated characteristics of","71","03","W5JJ",30,"Mar 71"
15,"Varactor tuning tips (HN)","81","02","N3GN",67,"Feb 81"
15,"Variable-inductance variable frequency oscillators","80","07","W0YBF",50,"Jul 80"
15,"Very sensitive LF or HF field-strength meter","86","09","K1RGO",67,"Sep 86"
15,"VHF noise bridge","86","07","OE2APM/AA3K",10,"Jul 86"
15,"VHF/UHF world: the VHF/UHF primer, an introduction to filters","84","08","W1JR",112,"Aug 84"
15,"VLF dip meter, no-adjust bias for (HN)","80","07","WB3IDJ",69,"Jul 80"
15,"VMOS on 1750 meters","83","10","K1RGO",71,"Oct 83"
15,"VSWR bridges","86","03","K2LB",37,"Mar 86"
15,"Warning lights, increasing reliability of","70","02","W3NK",40,"Feb 70"
15,"White noise diodes, selecting (HN)","76","04","W6DOB",65,"Apr 76"
15,"Wide-range RF power meter","86","04","KA8OBL",24,"Apr 86"
15,"Wideband amplifier summary","79","11","DJ2LR",34,"Nov 79"
15,"Wilkinson hybrids","82","01","WA2EWT",12,"Jan 82"
15,"Wind direction indicator, digital","68","09","W6GXN",14,"Sep 68"
15,"Wind generators","76","07","W3FQJ",24,"Jul 76"
15,"Wind loading on towers and antenna structures, how to calculate","74","08","K4KJ",16,"Aug 74"
15,"Wind loading on towers and antenna structures, how to calculate","75","07","Added note",56,"Jul 75"
15,"Y parameters, using in rf amplifier design","72","07","WA0TCU",46,"Jul 72"
16,"Ac power line monitor","71","08","W2OLU",46,"Aug 71"
16,"Amplifiers, tube and transistor, tabulated characteristics of","71","03","W5JJ",30,"Mar 71"
16,"Antenna couplers, simple","70","01","W2EEY",32,"Jan 70"
16,"Antenna ground system Installation","70","05","W1EZT",64,"May 70"
16,"Antenna systems for 40 and 80 meters","70","02","K6KA",55,"Feb 70"
16,"Antenna tuning units","72","12","W3FQJ",58,"Dec 72"
16,"Antenna tuning units","73","01","W3FQJ",58,"Jan 73"
16,"Antenna, 80 meters, for small lot","73","05","W6AGX",28,"May 73"
16,"Antenna, 80-meter vertical","70","05","VE1TG",26,"May 70"
16,"Antenna, bobtail curtain for 40 meters","69","07","VE1TG",58,"Jul 69"
16,"Antenna, bow tie for 80 meters","75","05","W9VMQ",56,"May 75"
16,"Antenna, converted vee for 80 and 40","69","12","W6JKR",18,"Dec 69"
16,"Antenna, long wire, multiband","69","11","W3FQJ",28,"Nov 69"
16,"Antenna, multiband phased vertical","72","05","WA7GXO",33,"May 72"
16,"Antenna, top-loaded 80-meter vertical","69","06","VE1TG",48,"Jun 69"
16,"Antenna, unidirectional for 40 meters","70","01","GW3NJY",61,"Jan 70"
16,"Antennas, dipole","75","11","KH6HDM",60,"Nov 75"
16,"Antennas, low elevation","73","05","W3FQJ",66,"May 73"
16,"Antennas, QRM reducing receiving types","71","05","W3FQJ",54,"May 71"
16,"Antennas, simple dual-band","70","03","W6SAI",18,"Mar 70"
16,"Antennas, simple for 80 and 40 meters","72","12","W5RUB",16,"Dec 72"
16,"Audio agc principles and practice","71","06","WA5SNZ",28,"Jun 71"
16,"Audio filter, tunable","70","08","WA1JSM",34,"Aug 70"
16,"Audio filters, inexpensive","72","08","W8YFB",24,"Aug 72"
16,"Audio module, solid-state receiver","73","06","K4DHC",18,"Jun 73"
16,"Batteries, selecting for portable equipment","73","08","WB0AIK",40,"Aug 73"
16,"Battery power","74","08","W3FQJ",56,"Aug 74"
16,"Battery power","74","10","W3FQJ",57,"Oct 74"
16,"Cheers from down under","86","12","Comments: VK4OA",9,"Dec 86"
16,"COSMOS integrated circuits","75","06","W3FQJ",50,"Jun 75"
16,"CW audio filter, simple","71","11","W7DI",54,"Nov 71"
16,"CW audio filter, simplest","70","10","W4VNK",44,"Oct 70"
16,"CW monitor, simple","71","01","WA9OHR",65,"Jan 71"
16,"CW reception, improved through simulated stereo","74","10","WA1MKP",53,"Oct 74"
16,"CW transceiver, low-power for 40 meters","74","07","W7BBX",16,"Jul 74"
16,"Detectors, regenerative","70","03","W8YFB",61,"Mar 70"
16,"Diode detectors","76","01","W6GXN",28,"Jan 76"
16,"Dipoles, multiband for portable use","70","05","W6SAI",12,"May 70"
16,"Dummy load and rf wattmeter","70","04","W2OLU",56,"Apr 70"
16,"Elmer's notebook: 220 MHz","87","08","W1SL",91,"Aug 87"
16,"Elmer's notebook: an introduction to AMTOR","87","09","W1SL",101,"Sep 87"
16,"Elmer's notebook: novice enhancement","87","06","W1SL",95,"Jun 87"
16,"Elmer's notebook: novice enhancement","87","08","Short circuit",95,"Aug 87"
16,"Elmer's notebook: packet radio","87","10","W1SL",100,"Oct 87"
16,"Elmer's Notebook: Simple Instruments RF Output Monitor","89","11","W1SL",91,"Nov 89"
16,"Feedpoint impedance characteristics of practical antennas","73","12","W5JJ",50,"Dec 73"
16,"Filter, tunable for audio selectivity","70","03","W2EEY",22,"Mar 70"
16,"Fire protection in the ham shack","71","01","Darr",54,"Jan 71"
16,"Five-band Junkbox Transmitter","89","12","W3RMD",42,"Dec 89"
16,"Frequency spotter, crystal controlled","70","11","W5JJ",36,"Nov 70"
16,"Ham radio techniques","86","12","W6SAI",59,"Dec 86"
16,"Ham Radio Techniques: Antennas, GFI, Capacitors and Fundamentals","89","12","W6SAI",57,"Dec 89"
16,"ICs, basics of","71","06","W3FQJ",40,"Jun 71"
16,"ICs, basics of","71","07","W3FQJ",58,"Jul 71"
16,"ICs, digital flip-flops","72","07","W3FQJ",60,"Jul 72"
16,"ICs, digital multivibrators","72","06","W3FQJ",42,"Jun 72"
16,"ICs, digital, basics","72","03","W3FQJ",41,"Mar 72"
16,"ICs, digital, basics","72","04","W3FQJ",58,"Apr 72"
16,"ICs, digital, oscillators and dividers","72","08","W3FQJ",62,"Aug 72"
16,"Interference, hi-fi","75","06","G3LLL",26,"Jun 75"
16,"Interference, radio frequency","73","03","WA3NFW",30,"Mar 73"
16,"Introduction to Waveform Generators- pt 2","89","12","K4IPV",82,"Dec 89"
16,"Man-made interference, how to find","70","12","W1DTY",12,"Dec 70"
16,"Meters, how to use","75","09","W4PSJ",48,"Sep 75"
16,"Morse code computer tutor","85","06","N3SE",45,"Jun 85"
16,"Morse code, speed standards for","73","04","VE2ZK",58,"Apr 73"
16,"Mosfet circuits","75","02","W3FQJ",50,"Feb 75"
16,"New band privileges for Novice operators (letter)","85","09","KA0DOE",15,"Sep 85"
16,"New band privileges for Novice operators (letter)","86","01","Comments, KD0EV",9,"Jan 86"
16,"New band privileges for Novice operators (letter)","86","01","Comments, W3Y6F",9,"Jan 86"
16,"New band privileges for Novice operators (letter)","86","06","Comments, WD5H",9,"Jun 86"
16,"Novice playground (letter)","82","01","WA5MUF",8,"Jan 82"
16,"Novice privileges (letter)","85","10","WB9IVR",9,"Oct 85"
16,"Novice roundup (letter)","81","06","KA9AZY",8,"Jun 81"
16,"Operation upgrade: part 1","81","09","W6BNB",12,"Sep 81"
16,"Operation upgrade: part 2","81","10","W6BNB",28,"Oct 81"
16,"Practically speaking","85","12","K4IPV",79,"Dec 85"
16,"Practically Speaking: Getting to Know the Logic Families- pt 1: TTL","89","12","K4IPV",34,"Dec 89"
16,"Practically Speaking: Test Equipment for Digital Electronics","89","11","K4IPV",76,"Nov 89"
16,"Preamplifier, 21 MHz","72","04","WA5SNZ",20,"Apr 72"
16,"Printed-circuit boards, how to make your own","73","04","K4EEU",58,"Apr 73"
16,"Printed-circuit boards, low cost","75","01","W8YFB",16,"Jan 75"
16,"Q factor, understanding","74","12","W5JJ",16,"Dec 74"
16,"Radio communications links, basics of","69","10","W1EZT",44,"Oct 69"
16,"Radiotelegraph codes: there's not just one","88","09","KR6A",82,"Sep 88"
16,"Receiver frequency calibrator","71","12","W5UQS",28,"Dec 71"
16,"Receiver, regenerative for WWV","73","04","WA5SNZ",42,"Apr 73"
16,"Receivers, direct-conversion","71","11","W3FQJ",59,"Nov 71"
16,"Rectifiers, improved half-wave","73","10","Bailey",34,"Oct 73"
16,"Reflections: Novice enhancement and the 220 MHz band","87","04","W9JUV",4,"Apr 87"
16,"S-meters, circuits for","75","03","K6SDX",20,"Mar 75"
16,"Safety in the ham shack","69","03","Darr",44,"Mar 69"
16,"Semiconductor diodes, evaluating","71","12","W5JJ",52,"Dec 71"
16,"Semiconductors, charge flow in","71","04","WB6BIH",50,"Apr 71"
16,"Speaker intelligibility, improving","70","08","WA5RAQ",53,"Aug 70"
16,"Swr bridge","71","10","WB2ZSH",55,"Oct 71"
16,"Towers and rotators","76","05","K6KA",34,"May 76"
16,"Transistor power dissipation, how to determine","71","06","WN9CGW",56,"Jun 71"
16,"Transmitter keying, improving","76","06","K6KA",44,"Jun 76"
16,"Transmitter power levels","71","04","WA5SNZ",62,"Apr 71"
16,"Transmitter, low-power, 80-meter","75","08","W3FQJ",50,"Aug 75"
16,"Transmitter, multiband low power with vfo","72","07","K8EEG",39,"Jul 72"
16,"Troubleshooting by voltage measurements","76","02","James",64,"Feb 76"
16,"Troubleshooting, basic","76","01","James",54,"Jan 76"
16,"Troubleshooting, resistance measurements","76","04","James",58,"Apr 76"
16,"Troubleshooting, thinking your way through","71","02","Allen",58,"Feb 71"
16,"Tuneup, off-the-air","76","03","W4MB",40,"Mar 76"
16,"Underground coaxial transmission line, how to install","70","05","W0FCH",38,"May 70"
16,"Vertical antennas, improving efficiency","74","12","K6FD",54,"Dec 74"
16,"Vfo for 40 and 80 meters","70","08","W3QBO",36,"Aug 70"
16,"Vfo, stable solid-state","71","12","K4BGF",8,"Dec 71"
16,"Wiring and grounding","69","06","W1EZT",44,"Jun 69"
16,"Workbench, electronics","70","10","W1EZT",50,"Oct 70"
17,"160-meter band (ham radio techniques)","81","05","W6SAI",46,"May 81"
17,"2 meters outlawed (letter)","82","08","AA6C",8,"Aug 82"
17,"Amateur band Intruders (letter)","80","10","W5SAD",8,"Oct 80"
17,"Amateur radio, 1933 (ham radio techniques)","81","06","W6SAI",41,"Jun 81"
17,"Amateur radio, 1941 (ham radio techniques)","81","08","W6SAI",30,"Aug 81"
17,"Battlefield, the (letter)","83","06","W0WL",8,"Jun 83"
17,"Beam antenna headings","71","04","W6FFC",64,"Apr 71"
17,"Best best regards regards (letter)","82","01","W6BQD",8,"Jan 82"
17,"Best best regards regards (letter)","82","04","Comments, N4AGS",8,"Apr 82"
17,"Best best regards regards (letter)","82","05","Comments, KA6NFD",8,"May 82"
17,"Best best regards regards (letter)","82","09","Comments, KA2AGZ",8,"Sep 82"
17,"Blind ham (letter)","82","09","Gerrey, Bill",8,"Sep 82"
17,"Burglar alarm RFI (letter)","82","03","WB2YVY",8,"Mar 82"
17,"Buying topo maps","86","12","Comments: K3SKE",9,"Dec 86"
17,"Card from Frenchy (letter)","82","04","W2LPV",8,"Apr 82"
17,"Carrier complaint (comment)","88","07","WD0P",9,"Jul 88"
17,"Carrier-operated CW reception limiter","85","09","W6NRW",113,"Sep 85"
17,"CATVI (letter)","83","08","WB4NMA",10,"Aug 83"
17,"Code practice (HN)","73","05","W2OUX",74,"May 73"
17,"Code practice - the rf way","68","08","WA4NED",65,"Aug 68"
17,"Code practice stations (letter)","72","12","WB4LXJ",75,"Dec 72"
17,"Computers and ham radio","69","03","W5TOM",60,"Mar 69"
17,"County awards (totter)","81","07","KB7SB",8,"Jul 81"
17,"CW anyone?","81","03","W7JWJ",44,"Mar 81"
17,"CW memory, simple - Weekender","80","11","K4DHC",46,"Nov 80"
17,"CW monitor","69","08","W2EEY",46,"Aug 69"
17,"CW monitor and code-practice oscillator","68","04","K6RIL",46,"Apr 68"
17,"CW monitor, simple","71","01","WA9OHR",65,"Jan 71"
17,"CW nets (letter)","82","06","N4EVS",8,"Jun 82"
17,"CW transceiver operation with transmit-receive offset","70","09","W1DAX",56,"Sep 70"
17,"CW zero-beat indicator for transceivers","83","03","W6KVD",88,"Mar 83"
17,"DARC awards information","87","07","Comments: K1RH",6,"Jul 87"
17,"DX and QRP (letter)","82","10","W6QJI",8,"Oct 82"
17,"DX Forecaster","81","11","K0RYW",76,"Nov 81"
17,"DX Forecaster","81","12","K0RYW",78,"Dec 81"
17,"DXCC check list, simple","73","06","W2CNQ",55,"Jun 73"
17,"DXer's diary","81","03","W9KNI",18,"Mar 81"
17,"DXer's diary","81","04","W9KNI",26,"Apr 81"
17,"DXer's diary","81","06","W9KNI",22,"Jun 81"
17,"DXer's diary","81","09","Comments",6,"Sep 81"
17,"E12W six-meter report (letter)","80","07","EI2W",12,"Jul 80"
17,"Elmer's notebook: "Q" signals","88","06","W1SL",95,"Jun 88"
17,"Elmer's notebook: 220 MHz","87","08","Short circuit",95,"Aug 87"
17,"Elmer's notebook: 220 MHz","87","08","W1SL",91,"Aug 87"
17,"Elmer's notebook: an introduction to AMTOR","87","09","W1SL",101,"Sep 87"
17,"Elmer's notebook: packet radio","87","10","W1SL",100,"Oct 87"
17,"EME, 70-CM, requirements and recommendations","82","06","W1JR",12,"Jun 82"
17,"EME, 70-CM, requirements and recommendations","82","10","Short circuit",79,"Oct 82"
17,"FCC actions (letter)","80","04","N8ADA",6,"Apr 80"
17,"FCC actions (letter)","80","04","W1ZI",6,"Apr 80"
17,"Field Day- prepardedness or party time? (Backscatter)","88","09","W9JUV and N1ACH",6,"Sep 88"
17,"Fluorescent light, portable (HN)","73","10","K8BYO",62,"Oct 73"
17,"Generation gap in Amateur Radio (comment)","88","08","N3CCW",94,"Aug 88"
17,"Great-circle charts (HN)","73","10","K6KA",62,"Oct 73"
17,"Great-circle maps","79","02","N5KR",24,"Feb 79"
17,"Ham bands under siege (Backscatter)","88","10","N1ACH",4,"Oct 88"
17,"Ham radio techniques","82","01","W6SAI",53,"Jan 82"
17,"Ham radio techniques","82","03","W6SAI",28,"Mar 82"
17,"Ham radio techniques","82","04","W6SAI",26,"Apr 82"
17,"Ham radio techniques","82","06","W6SAI",76,"Jun 82"
17,"Ham radio techniques","82","07","W6SAI",42,"Jul 82"
17,"Ham radio techniques","82","08","W6SAI",42,"Aug 82"
17,"Ham radio techniques","82","09","W6SAI",40,"Sep 82"
17,"Ham radio techniques","82","10","W6SAI",20,"Oct 82"
17,"Ham radio techniques","82","11","W6SAI",46,"Nov 82"
17,"Ham radio techniques","82","12","W6SAI",58,"Dec 82"
17,"Ham radio techniques","83","01","W6SAI",66,"Jan 83"
17,"Ham radio techniques","83","11","W6SAI",65,"Nov 83"
17,"Ham radio techniques","83","12","W6SAI",81,"Dec 83"
17,"Ham radio techniques","84","09","W6SAI",58,"Sep 84"
17,"Ham radio techniques","86","01","W6SAI",67,"Jan 86"
17,"Ham radio techniques","86","02","W6SAI",65,"Feb 86"
17,"Ham radio techniques","86","03","W6SAI",63,"Mar 86"
17,"Ham radio techniques","86","04","W6SAI",42,"Apr 86"
17,"Ham radio techniques","86","05","W6SAI",39,"May 86"
17,"Ham radio techniques","86","06","W6SAI",30,"Jun 86"
17,"Ham radio techniques","86","07","W6SAI",66,"Jul 86"
17,"Ham radio techniques","86","08","W6SAI",43,"Aug 86"
17,"Ham radio techniques","86","09","W6SAI",42,"Sep 86"
17,"Ham radio techniques","86","10","W6SAI",38,"Oct 86"
17,"Ham radio techniques","86","11","W6SAI",73,"Nov 86"
17,"Ham radio techniques","86","12","W6SAI",59,"Dec 86"
17,"Ham Radio Techniques: 50th Anniversary of Tube that Changed Everything","86","08","W6SAI",43,"Aug 86"
17,"Ham radio techniques: a new country for you?","87","11","W6SAI",41,"Nov 87"
17,"Ham radio techniques: BYCAA revisited","87","08","W6SAI",53,"Aug 87"
17,"Ham Radio Techniques: Grounded-grid Amplifier","86","09","W6SAI",42,"Sep 86"
17,"Ham Radio Techniques: Grounded-grid Amplifier- pt 2","86","10","W6SAI",38,"Oct 86"
17,"Ham Radio Techniques: MacGyver of the 30s","86","12","W6SAI",59,"Dec 86"
17,"Ham Radio Techniques: More on the G5RV Antenna","86","03","W6SAI",63,"Mar 86"
17,"Ham Radio Techniques: Phasing SSB SYSTEM.. Born Again!","86","01","W6SAI",67,"Jan 86"
17,"Ham Radio Techniques: Quad falling apart?","86","02","W6SAI",65,"Feb 86"
17,"Ham Radio Techniques: Summer Miscellany (Antennas)","86","07","W6SAI",66,"Jul 86"
17,"Ham Radio Techniques: Super-cathode Driven Amplifier","86","11","W6SAI",73,"Nov 86"
17,"Ham Radio Techniques: Surface-wave OTH Radar More QRM","86","04","W6SAI",42,"Apr 86"
17,"Ham radio techniques: the crystal ball","82","05","W6SAI",68,"May 82"
17,"Ham Radio Techniques: The Greatest Contest Ever Staged","86","05","W6SAI",39,"May 86"
17,"Ham Radio Techniques: the joys of TVI or, were you on the air last night?","88","08","W6SAI",70,"Aug 88"
17,"Ham Radio Techniques: The radio boys in the Pacific, or, working DX for Uncle Sam","88","11","W6SAI",26,"Nov 88"
17,"Ham Radio Techniques: Wrangle Over Wrengell (Island)","86","06","W6SAI",30,"Jun 86"
17,"Hamvention slide show (letter)","82","01","N8ADA",8,"Jan 82"
17,"Homebrew linears: treat or trap? (HN)","82","11","VK4LR",77,"Nov 82"
17,"Horn radio techniques","82","02","W6SAI",60,"Feb 82"
17,"How to be DX","68","08","W4NXD",58,"Aug 68"
17,"HT mobile companion","90","02","K6JM",74,"Feb 90"
17,"IC-255A switching circuit (HN)","83","01","WB6IQV",70,"Jan 83"
17,"IC-255A switching circuit (HN)","83","06","Comments, WA4MZZ",8,"Jun 83"
17,"Identification timer (HN)","74","11","K9UQN",60,"Nov 74"
17,"Intruder watch (letter)","81","08","ZL6IW/ZL1BAD",6,"Aug 81"
17,"INUS system (comment)","88","01","XE1MD",9,"Jan 88"
17,"Is it stolen?","82","12","W8AP",84,"Dec 82"
17,"Legal usefulness of Amateur Radio (comment)","88","08","WA7AQN",9,"Aug 88"
17,"Lifeline SAR (letter)","82","04","WB9PFZ",8,"Apr 82"
17,"Listening in on 10 fm","82","01","W8FX",62,"Jan 82"
17,"Locator field list","87","07","SM5AGM",74,"Jul 87"
17,"Locator field list","87","10","SM5AGM",89,"Oct 87"
17,"Magazines, use your old","70","01","Foster",52,"Jan 70"
17,"Maritime mobiles need simple rigs and good installations","90","04","WB6VPX",9,"Apr 90"
17,"Market survey of amateurs a good idea (comment)","88","08","W1FB",9,"Aug 88"
17,"Monitor, tone alert","80","08","W4KRT",24,"Aug 80"
17,"More information needed (comment)","88","09","W3QQM",9,"Sep 88"
17,"Morse code, speed standards for","73","04","VE2ZK",68,"Apr 73"
17,"Morse code, speed standards for","74","01","Added note (letter)",68,"Jan 74"
17,"Mysterious spur on 160","83","05","N3BEK",73,"May 83"
17,"No code (letter)","83","08","W6SN",10,"Aug 83"
17,"No-code licence (letters)","83","01","WB4SKP, W9ZMR, W2LX, etal",8,"Jan 83"
17,"On-air tune-up (letter)","82","03","K3EQ",36,"Mar 82"
17,"Operating etiquette (letter)","84","07","W9MKV",12,"Jul 84"
17,"Operation upgrade: part 10","82","10","W6BNB",60,"Oct 82"
17,"Operation upgrade: part 11","82","11","W6BNB",58,"Nov 82"
17,"Operation upgrade: part 4","82","02","W8BNB",32,"Feb 82"
17,"Operation upgrade: part 5","82","03","W6BNB",56,"Mar 82"
17,"Operation upgrade: part 6","82","04","W6BNB",56,"Apr 82"
17,"Operation upgrade: part 7","82","06","W6BNB",54,"Jun 82"
17,"Operation upgrade: part 8","82","07","W6BNB",56,"Jul 82"
17,"Operation upgrade: part 9","82","09","W6BNB",58,"Sep 82"
17,"Other guy (letter)","82","05","KA2GXS",8,"May 82"
17,"Pacemakers and RFI","83","06","K4CN",98,"Jun 83"
17,"Pacemakers and RFI","83","10","Comments, K1RGO",76,"Oct 83"
17,"Pacemakers and RFI","83","10","Comments, K4CN",77,"Oct 83"
17,"Pacemakers and RFI: safety first","83","10","K3EAS, K3FOW",76,"Oct 83"
17,"Potential danger (Backscatter)","88","11","N1ACH",4,"Nov 88"
17,"Propagation of radio waves","82","08","W1GV/4",26,"Aug 82"
17,"Protecting amateur radio (letter)","81","07","K2JIY",8,"Jul 81"
17,"Protective material, plastic (HN)","70","12","W6BKX",58,"Dec 70"
17,"QRP (letter)","82","11","W5QJM",8,"Nov 82"
17,"QSL return, statistics on","68","12","WB6IUH",60,"Dec 68"
17,"Re-discovering ham radio (comment)","88","08","KC1JG",9,"Aug 88"
17,"Repeater etiquette (letter)","83","10","W1OLP",8,"Oct 83"
17,"Replays, instant (HN)","70","02","W6DNS",67,"Feb 70"
17,"RST (letter)","81","02","W0UCK",6,"Feb 81"
17,"RST feedback (letter)","80","12","V4OVO",6,"Dec 80"
17,"RST feedback (letter)","80","12","W0NN",6,"Dec 80"
17,"Selfish attitudes (letter)","80","11","K2OZ",6,"Nov 80"
17,"Service not hobby (letter)","85","08","W5VSR",8,"Aug 85"
17,"Sideband location (HN)","73","08","K6KA",62,"Aug 73"
17,"Spurious signals (HN)","74","11","K6KA",61,"Nov 74"
17,"Ten-meter band (ham radio techniques)","81","04","W6SAI",38,"Apr 81"
17,"Ten-meter beacon","83","04","WA1IOB",46,"Apr 83"
17,"Ten-meter beacons (letter)","83","09","KA1YE",13,"Sep 83"
17,"Ten-meter beacons (letter)","84","01","Comments, KA1YE",11,"Jan 84"
17,"Ten-second call swaps (letter)","81","08","WB1FJE",6,"Aug 81"
17,"TOM remembered (letter)","84","01","W1ESN",11,"Jan 84"
17,"Transceiver tuning (letter)","82","06","N6TO",8,"Jun 82"
17,"True north for antenna orientation, how to determine","80","10","K4DE",38,"Oct 80"
17,"Tune-up method, low duty-cycle for transmitters (HN)","83","08","K4KI",62,"Aug 83"
17,"Tune-up method, low duty-cycle for transmitters (HN)","83","12","Comments, W5XW",11,"Dec 83"
17,"Tune-up method, low duty-cycle for transmitters (HN)","84","01","Comments, K4KI",11,"Jan 84"
17,"Tuning with ssb gear","70","10","W0KD",40,"Oct 70"
17,"VHF/UHF World: Loose ends","88","09","W1JR",53,"Sep 88"
17,"VHF/UHF world: operating a VHF/UHF microwave station","87","07","W1JR",38,"Jul 87"
17,"VHF/UHF world: operating a VHF/UHF microwave station","87","10","Short circuit",97,"Oct 87"
17,"Volunteer examiners: keep standards high (letter)","84","05","W0WX",12,"May 84"
17,"Wearing cans (letter)","81","07","WB9FRV",8,"Jul 81"
17,"Who pays the jammer (letter)","82","10","W3MEO",8,"Oct 82"
17,"Working W5LFL from space","83","09","K6DUE",81,"Sep 83"
17,"Zulu time (HN)","73","03","K6KA",58,"Mar 73"
18,"1-MHz oscillator, new approach","79","03","WA2SPI",46,"Mar 79"
18,"10-GHz oscillator, ultra stable","83","06","K8UR",57,"Jun 83"
18,"455-kHz bfo, transistorized","68","07","W6BLZ, K5GXR",12,"Jul 68"
18,"5-ampere power supply, adjustable","78","12","N1JR",50,"Dec 78"
18,"AFC circuit for VFOs","79","06","K6EHV",19,"Jun 79"
18,"AFSK oscillator, solid-state","68","10","WA4FGY",28,"Oct 68"
18,"Audio oscillator to pulse generator conversion (HN)","84","10","W0DLO",50,"Oct 84"
18,"Audio oscillator, NE566 IC","75","01","W1EZT",36,"Jan 75"
18,"Better frequency stability for the Drake TR7","87","08","HB9ABO",21,"Aug 87"
18,"Blocking oscillators","69","04","W6GXN",45,"Apr 69"
18,"Clock oscillator, TTL (HN)","73","12","W9ZTK",56,"Dec 73"
18,"Colpitts oscillator design technique","78","07","WB6BPI",78,"Jul 78"
18,"Colpitts oscillator design technique","79","02","Short circuit",94,"Feb 79"
18,"Crystal oscillator, frequency adjustment of","72","08","W9ZTK",42,"Aug 72"
18,"Crystal oscillator, high stability","74","10","W6TNS",36,"Oct 74"
18,"Crystal oscillator, low-frequency (HN)","82","03","W6XM",86,"Mar 82"
18,"Crystal oscillator, miniature","68","12","W6DOR",68,"Dec 68"
18,"Crystal oscillator, simple (HN)","77","11","W2OUX",98,"Nov 77"
18,"Crystal oscillators","69","07","W6GXN",33,"Jul 69"
18,"Crystal oscillators, stable","75","06","DJ2LR",34,"Jun 75"
18,"Crystal oscillators, stable","75","09","Correction",67,"Sep 75"
18,"Crystal oscillators, survey of","76","03","VK2ZTB",10,"Mar 76"
18,"Crystal oven, simple (HN)","76","04","Mathieson",66,"Apr 76"
18,"Crystal ovens, precision temperature control","78","02","K4VA",34,"Feb 78"
18,"Crystal switching (HN)","69","03","K6LZM",70,"Mar 69"
18,"Crystal test oscillator and signal generator","73","03","K4EEU",46,"Mar 73"
18,"Crystals, overtone (HN)","72","08","G8ABR",72,"Aug 72"
18,"CW BFO crystal for the 7SS-3 (HN)","82","02","N1FB",80,"Feb 82"
18,"Direct synthesis VFO","88","09","W7SX",10,"Sep 88"
18,"Drift-correction circuit for free running oscillators","77","12","PA0KSB",45,"Dec 77"
18,"Elmer's Notebook: Oscillators","89","05","W1SL",44,"May 89"
18,"Frequency synthesis by VXO harmonic selection","84","02","W3MT",12,"Feb 84"
18,"Frequency synthesis up to 2 GHz","88","04","WA6DYW",33,"Apr 88"
18,"Goral oscillator notes (HN)","76","04","K5QIN",66,"Apr 76"
18,"Hex inverter vxo circuit","75","04","W2LTJ",50,"Apr 75"
18,"High-stability BFO for receiver applications","85","06","K1ZJH",28,"Jun 85"
18,"IC crystal controled oscillators (letter)","78","01","W7EKC",91,"Jan 78"
18,"IC crystal controlled oscillators","76","03","VK2ZTB",10,"Mar 76"
18,"Introduction to Waveform Generators- pt 1","89","09","K4IPV",62,"Sep 89"
18,"Junkbox variable crystal oscillator (Weekender)","90","02","W3RMD",72,"Feb 90"
18,"Local oscillator, phase locked","71","03","VE5FP",6,"Mar 71"
18,"Local oscillators, high stability for microwave receivers and other applications","85","11","WB3JZO",29,"Nov 85"
18,"Low-noise phase-locked UHF VCO part 2: construction and testing","86","08","WA9HUV",25,"Aug 86"
18,"Low-noise phase-locked UHF VFO part 1: the noise problem","86","07","WA9HUV",33,"Jul 86"
18,"Low-noise phase-locked UHF VFO part 1: the noise problem","86","12","Short circuit",9,"Dec 86"
18,"Monitoring oscillator","72","12","W2JIO",36,"Dec 72"
18,"Multiple band master-frequency oscillator","75","11","K6SDX",50,"Nov 75"
18,"Multivibrator, crystal-controlled","71","07","WN2MQY",65,"Jul 71"
18,"Noise sideband performance in oscillators, evaluating","78","10","DJ2LR",51,"Oct 78"
18,"Oscillator, audio, IC","73","02","W6GXN",50,"Feb 73"
18,"Oscillator, electronic keyer","70","06","WA6JNJ",44,"Jun 70"
18,"Oscillator, Franklin (HN)","72","01","W5JJ",61,"Jan 72"
18,"Oscillator, frequency measuring","72","04","W6IEL",16,"Apr 72"
18,"Oscillator, frequency measuring","72","12","Added notes",90,"Dec 72"
18,"Oscillator, gated (HN)","75","07","WB9KEY",59,"Jul 75"
18,"Oscillator, phase-locked","71","03","VE5FP",6,"Mar 71"
18,"Oscillator, two-tone, for ssb testing","72","04","W6GXN",11,"Apr 72"
18,"Oscillator, voltage controlled, uses ceramic resonators","85","06","K2BLA",18,"Jun 85"
18,"Oscillator, voltage controlled, uses ceramic resonators","85","08","Short circuit",27,"Aug 85"
18,"Oscillator-monitor, audio","70","09","WA1JSM",48,"Sep 70"
18,"Oscillators (HN)","69","11","W1DTY",68,"Nov 69"
18,"Oscillators, cure for cranky (HN)","70","12","W8YFB",55,"Dec 70"
18,"Oscillators, repairing","70","03","Allen",69,"Mar 70"
18,"Oscillators, resistance-capacitance","72","07","W6GXN",18,"Jul 72"
18,"Oscillators, ssb","68","06","Belt",26,"Jun 68"
18,"Overtone crystal oscillators without inductors","78","04","WA5SNZ",50,"Apr 78"
18,"Overtone oscillator (HN)","68","10","WSUQS",77,"Oct 68"
18,"Phantom-coil VXO","82","01","W3MT",66,"Jan 82"
18,"Phantom-coil VXO","82","07","Comments, W3MT",8,"Jul 82"
18,"PL tone generator, a programmable","84","04","WB0VSZ",51,"Apr 84"
18,"PL tone generator, a programmable","84","05","Short circuit",125,"May 84"
18,"Practically speaking: drift and shift","88","01","K4IPV",75,"Jan 88"
18,"Practically Speaking: More Digitally Generated Sawtooth Plus Triangle Waves","89","07","K4IPV",78,"Jul 89"
18,"Precision crystal frequency checker (Weekender)","90","06","N4TMI",44,"Jun 90"
18,"Quadrature-phased local oscillator ([after)","75","09","K6ZX",62,"Sep 75"
18,"Quartz crystals (letter)","72","12","WB2EGZ",74,"Dec 72"
18,"Regulated power supplies, designing","77","09","K5VKO",58,"Sep 77"
18,"RF synthesizers for hf communications, part1","83","08","WA6OAA",12,"Aug 83"
18,"RF synthesizers for hf communications, part1","84","05","Short circuit",125,"May 84"
18,"RF synthesizers for hf communications, part2","83","09","WA6OAA",48,"Sep 83"
18,"RF synthesizers for hf communications, part2","84","05","Short circuit",125,"May 84"
18,"RF synthesizers for hf communications, part3","83","10","WA6OAA",17,"Oct 83"
18,"RF synthesizers for hf communications, part3","84","05","Short circuit",125,"May 84"
18,"Stable vfo (C&T)","76","06","W1DTY",51,"Jun 76"
18,"TTL crystal oscillators (HN)","75","08","W0JVA",60,"Aug 75"
18,"TTL oscillator (HN)","78","02","WB6VZW",77,"Feb 78"
18,"UHF local-oscillator chain","79","07","N6TX",27,"Jul 79"
18,"Universal oscillator circuit","86","04","VE6RF",38,"Apr 86"
18,"VCO, 1800-2600 MHz","85","07","W0DTV",21,"Jul 85"
18,"Vco, crystal-controlled","69","10","WB6IOM",58,"Oct 69"
18,"Versatile audio oscillator (HN)","76","01","W7BBX",72,"Jan 76"
18,"Vfo buffer amplifier (HN)","71","07","W3QBO",66,"Jul 71"
18,"Vfo design using characteristic curves","78","06","I2BVZ",36,"Jun 78"
18,"Vfo design, stable","76","06","W1CER",10,"Jun 76"
18,"Vfo for solid-state transmitters","70","08","W3QBO",36,"Aug 70"
18,"Vfo transistors (HN)","69","11","W1OOP",74,"Nov 69"
18,"Vfo, digital readout","73","01","WB8IFM",14,"Jan 73"
18,"Vfo, high stability","69","03","W8YFB",14,"Mar 69"
18,"Vfo, high-stability, vhf","72","01","OH2CD",27,"Jan 72"
18,"Vfo, multiband fet","72","07","K8EEG",39,"Jul 72"
18,"Vfo, stable","71","12","K4BGF",8,"Dec 71"
18,"Vfo, stable transistor","68","06","W1DTY",14,"Jun 68"
18,"Vfo, stable transistor","68","08","Short circuit",34,"Aug 68"
18,"VFOs tuned by cylinder and disc","83","02","W0YBF",58,"Feb 83"
18,"Voltage-tuned mosfet oscillator","79","03","WA9HUV",26,"Mar 79"
18,"Vxo design, practical","70","08","K6BIJ",22,"Aug 70"
18,"Wideband VCO design","84","07","WA4MGX",49,"Jul 84"
19,"220-MHz 9600-Baud Data Radio System for Packet","89","02","W2DUC",67,"Feb 89"
19,"4800 baud modem for VHF/UHF packet radio","88","08","VE3DNL,VE3DNM,VE3DW & VE3LNY",10,"Aug 88"
19,"A New Addition for Your TNC","89","12","K9MLD",72,"Dec 89"
19,"Amateur packet radio networking and protocols, part 1","88","02","KR3T",33,"Feb 88"
19,"Amateur packet radio networking and protocols, part 2","88","03","KR3T",56,"Mar 88"
19,"Amateur packet radio networking and protocols, part 3","88","04","KR3T",41,"Apr 88"
19,"Automatic Packet Beacon Tracker and Monitor (HN)","89","08","W4GBB",66,"Aug 89"
19,"C-64 and GLB PK-1 interface circuit","87","01","Comments: packet board update",6,"Jan 87"
19,"C-64 and GLB PK-1 interface circuit","87","03","W2EHD",87,"Mar 87"
19,"Elmer's notebook: packet radio","87","10","W1SL",100,"Oct 87"
19,"Elmer's Notebook: Packet Radio for the First Timer","89","03","WISL",96,"Mar 89"
19,"Exploring packet radio with KISS","88","10","WA8BXN",9,"Oct 88"
19,"Formatted display of packet using KISS","88","12","WA8BXN",51,"Dec 88"
19,"Packet radio conference bridge","87","04","WD5HJP",24,"Apr 87"
19,"Packet radio PSK modem for JAS-1/FO-12","87","02","G3RUH",8,"Feb 87"
19,"Packetimer for the PK-1","87","03","W2EHD/exW8KGN",93,"Mar 87"
19,"RAM drive for packet radio","87","12","AD1B",44,"Dec 87"
19,"Station Control Node Expand Your Versatility with SCN","89","03","WA0RJT",23,"Mar 89"
19,"TEXNET packet-switching network - pt. 1 system definition and design","87","03","WB5PUC & N5EG",29,"Mar 87"
19,"TEXNET packet-switching network - pt. 2 hardware design","87","04","WB5PUC & N5EG",29,"Apr 87"
19,"TEXNET packet-switching network - pt. 3 software overview","87","06","WB5PUC & N5EG",53,"Jun 87"
19,"Transmit Timer for the KPC-2, The Weekender","89","02","K1ZJH",94,"Feb 89"
19,"Using macros with packet (HN)","88","10","AD1B",82,"Oct 88"
19,"Video Monitor for Packet Demonstrations, A Big","89","06","WALFHB",27,"Jun 89"
20,"AC converter, DC to 400-Hz (HN)","83","03","WB2YVY",58,"Mar 83"
20,"AC current monitor (letter)","75","03","WB5MAP",61,"Mar 75"
20,"AC power supply, regulated, for mobile fm equipment","73","06","WA8TMP",28,"Jun 73"
20,"Adjustable 5-ampere supply","79","01","N1JR",50,"Jan 79"
20,"All-mode-protected power supply","77","10","K2PMA",74,"Oct 77"
20,"An easy-to-build NiCd pulse charger (weekender)","88","09","AG6K",18,"Sep 88"
20,"Arc suppression networks (HN)","73","07","WA5EKA",70,"Jul 73"
20,"Batteries on concrete (comment)","88","09","N5OP",101,"Sep 88"
20,"Batteries, selecting for portable equipment","73","08","WA0AIK",40,"Aug 73"
20,"Battery charger, NiCd, constant current, a pulsed","85","08","K2MWU",67,"Aug 85"
20,"Battery charging (letter)","80","11","Carlson",6,"Nov 80"
20,"Battery drain, auxiliary, guard for (HN)","74","10","W1DTY",74,"Oct 74"
20,"Battery power","74","08","W3FQJ",56,"Aug 74"
20,"Battery storage (comment)","88","05","W5JHJ",6,"May 88"
20,"Battery-backed master power system","88","01","K9ES",17,"Jan 88"
20,"Bench power supply - Weekender","80","02","WB6AFT",50,"Feb 80"
20,"Build your own supercharger","90","03","K3OF",22,"Mar 90"
20,"Build your own supercharger","90","05","Short circuit",78,"May 90"
20,"Charger, fet-controlled, for nicad batteries","75","08","WA0JYK",46,"Aug 75"
20,"Constant-current battery charger for portable operation","78","04","K5PA",34,"Apr 78"
20,"Converter, 12 to 6 volt (C&T)","76","04","W1DTY",42,"Apr 76"
20,"Current limiting (HN)","72","10","W0LPQ",70,"Oct 72"
20,"Current limiting (letter)","73","10","K5MKO",66,"Oct 73"
20,"Dc power supply, regulated (C&T)","76","06","W1DTY",51,"Jun 76"
20,"Dc-dc converter, low-power","75","03","W5MLY",54,"Mar 75"
20,"Diesel generator repair","83","04","Richardson, Wayne",46,"Apr 83"
20,"Diode surge protection (HN)","72","03","WA7LUJ",65,"Mar 72"
20,"Diode surge protection (HN)","72","08","Added note",77,"Aug 72"
20,"Diodes for power supplies, choosing","68","07","W6BLZ",38,"Jul 68"
20,"Drake R-4C receiver improved power supply","82","02","W3RJ",28,"Feb 82"
20,"Dry-cell life","76","04","W1DTY",41,"Apr 76"
20,"Dual voltage power supply","83","03","WD4SKH",32,"Mar 83"
20,"Dual voltage power supply","83","07","Comments, WB2UAQ",12,"Jul 83"
20,"Dual voltage power supply","83","07","Short circuit",80,"Jul 83"
20,"Dual voltage surge-protection for high-voltage power supplies (weekender)","81","08","K8VIR",42,"Aug 81"
20,"Dual-voltage power supply (HN)","69","04","W1OOP",71,"Apr 69"
20,"Dual-voltage power supply (HN)","69","08","Short circuit",80,"Aug 69"
20,"Dual-voltage power supply (HN)","71","11","W5JJ",68,"Nov 71"
20,"Electrolytic capacitors (letter)","81","06","WB8MKU",6,"Jun 81"
20,"Filament transformers, miniature","74","09","Bailey",66,"Sep 74"
20,"Forget memory (Ni-Cd discussion)","83","01","K0OV",62,"Jan 83"
20,"Get the most from your NiCds (Weekender)","88","12","K3OF",88,"Dec 88"
20,"High-current regulated dc supply","79","08","N8AKS",50,"Aug 79"
20,"High-power trouble shooting","68","08","Allen",52,"Aug 68"
20,"IC power (HN)","72","04","W3KBM",68,"Apr 72"
20,"IC power supply, adjustable (HN)","78","01","W3HB",95,"Jan 78"
20,"IC regulated power supply","70","11","W2FBW",50,"Nov 70"
20,"IC regulated power supply","70","12","W9SEK",51,"Dec 70"
20,"IC regulated power supply for ICs","68","05","Short circuit",80,"May 68"
20,"IC-regulated power supply for ICs","68","03","W6GXN",28,"Mar 68"
20,"Instantaneous-shutdown high-current regulated supply","78","06","W6GB",81,"Jun 78"
20,"Klystrons, reflex power for (HN)","73","07","W6BPK",71,"Jul 73"
20,"Line transient protection (HN)","68","07","W1DTY",75,"Jul 68"
20,"Line-voltage monitor (HN)","74","01","WA8VFK",66,"Jan 74"
20,"Line-voltage monitor (HN)","75","03","Current monitor mod (letter)",61,"Mar 75"
20,"Load protection, scr (HN)","72","10","W5OZF",62,"Oct 72"
20,"Low voltage, variable bench power supply (weekender)","76","03","W6NBI",58,"Mar 76"
20,"Low-value voltage source (HN)","71","11","WA5EKA",66,"Nov 71"
20,"Low-voltage dc power supplies - Repair Bench","79","10","K4IPV",38,"Oct 79"
20,"Low-voltage power supplies, designing","85","03","W4MLE",46,"Mar 85"
20,"Low-voltage power supplies, designing","85","05","Short circuit",121,"May 85"
20,"Low-voltage supply (HN)","68","06","WB2EGZ",57,"Jun 68"
20,"Low-voltage supply with short-circuit protection","68","04","WB2EGZ",22,"Apr 68"
20,"Mobile power supplies, troubleshooting","70","06","Allen",56,"Jun 70"
20,"Mobile power supply (HN)","70","04","WN8DJV",79,"Apr 70"
20,"Mobile supply, low-cost (HN)","70","07","W4GEG",69,"Jul 70"
20,"Motorola Dispatcher, converting to 12 volts","72","07","WB6HXU",26,"Jul 72"
20,"Ni-cad charger, any-state","79","12","WA6TBC",66,"Dec 79"
20,"Nicad battery care (HN)","76","02","W1DHZ",71,"Feb 76"
20,"Nickel-cadmium batteries, time-current charging","79","02","W1OLP",32,"Feb 79"
20,"Operational power supply","70","04","WA2IKL",8,"Apr 70"
20,"Overvoitage protection (HN)","76","04","W1AAZ",64,"Apr 76"
20,"Pilot-lamp life (HN)","73","07","W2OLU",71,"Jul 73"
20,"Polarity inverter, medium current","73","11","Laughlin",26,"Nov 73"
20,"Power supplies for single sideband","69","02","Belt",38,"Feb 69"
20,"Power supply for the big amplifier","82","06","W6YUY",64,"Jun 82"
20,"Power supply protection for your solid-state circuits","70","01","W5JJ",36,"Jan 70"
20,"Power supply troubleshooting (repair bench)","77","09","K4IPV",78,"Sep 77"
20,"Power supply, amplifier","83","09","WA2GFP",32,"Sep 83"
20,"Power supply, improved (HN)","72","02","W4ATE",72,"Feb 72"
20,"Power supply, precision","71","07","W7SK",26,"Jul 71"
20,"Power supply, six-output","84","10","Martin, Vaughn D.",12,"Oct 84"
20,"Power supply, switching high-voltage","84","04","W5FG",48,"Apr 84"
20,"Power-supply hum (HN)","71","05","W8YFB",64,"May 71"
20,"Practically speaking: battery problems, pt1","87","07","K4IPV",62,"Jul 87"
20,"Practically speaking: battery problems, pt2","87","08","K4IPV",73,"Aug 87"
20,"Practically speaking: bench power supply","86","03","K4IPV",55,"Mar 86"
20,"Precision high-voltage dc regulator","88","08","AG6K",75,"Aug 88"
20,"Precision voltage supply for phase-locked terminal unit (HN)","74","07","WA6TLA",60,"Jul 74"
20,"Protection for solid-state power supplies (HN)","70","09","W3NK",66,"Sep 70"
20,"Protection for your solid-state devices","81","03","W1OOP",52,"Mar 81"
20,"Pulse width modulated dc-to-dc converters","87","10","W3CZ",65,"Oct 87"
20,"Rectifier, half-wave, improved","73","10","Bailey",34,"Oct 73"
20,"Regulated 5-volt supply (HN)","73","01","W6UNF",67,"Jan 73"
20,"Regulated power supplies, designing (letter)","78","03","W9HFR",110,"Mar 78"
20,"Regulated power supplies, how to design","77","09","K5VKQ",58,"Sep 77"
20,"Regulated power supply, 500-watt","77","12","WA6PEC",30,"Dec 77"
20,"Regulated power supply, 500-watt","79","02","Short circuit",94,"Feb 79"
20,"Regulated screen grid power supply","86","06","AG6K",51,"Jun 86"
20,"Regulated solid-state high-voltage power supply","75","01","W6GXN",40,"Jan 75"
20,"Regulated solid-state high-voltage power supply","75","04","Short circuit",69,"Apr 75"
20,"Regulator problem solved (HN)","83","12","W6XM",97,"Dec 83"
20,"Safe power for your low-noise GaAa FET amplifier","82","11","WA9HUV",18,"Nov 82"
20,"SCR-regulated power supplies","70","07","W4GOC",52,"Jul 70"
20,"Selenium rectifiers, replacing","76","04","W1DTY",41,"Apr 76"
20,"Servicing power supplies","76","11","W6GXN",44,"Nov 76"
20,"Solar energy","74","07","W3FQJ",54,"Jul 74"
20,"Solar power","74","11","W3FQJ",52,"Nov 74"
20,"Solar power source, 36-volt","77","01","W3FQJ",54,"Jan 77"
20,"Squirrel-cage motors make field-day power supplies (HN)","81","08","K6DZY",74,"Aug 81"
20,"Step-start circuit, high-voltage (HN)","71","09","W6VFR",63,"Sep 71"
20,"Storage-battery QRP power","74","10","W3FQJ",64,"Oct 74"
20,"Storing lead-acid batteries (comment)","88","09","N5OP",9,"Sep 88"
20,"Super regulator, the MPC1000","76","09","W3HUC",52,"Sep 76"
20,"Superdischarger (Weekender)","90","04","K3OF",73,"Apr 90"
20,"Survey of solid-state power supplies","70","02","W6GXN",25,"Feb 70"
20,"Survey of solid-state power supplies","70","09","Short circuit",76,"Sep 70"
20,"Temperature control, automatic","85","06","WB5IRI",75,"Jun 85"
20,"The Guerri report: RF power supplies achieve high efficiency","85","09","W6MGI",157,"Sep 85"
20,"Thermoelectric power supplies","68","09","K1AJE",48,"Sep 68"
20,"Trans-global power supply (HN)","82","11","W9CGI",76,"Nov 82"
20,"Transformer shorts","68","07","W6BLZ",36,"Jul 68"
20,"Transformers, high-voltage, repairing","69","03","W6NIF",66,"Mar 69"
20,"Transformers, miniature (HN)","72","07","W4ATE",67,"Jul 72"
20,"Transformers, wind your own inexpensively","85","06","W4GDW",96,"Jun 85"
20,"Transient eliminator (C&T)","76","06","W1DTY",52,"Jun 76"
20,"Transients, reducing","73","01","W5JJ",50,"Jan 73"
20,"Two-way power for the IC2AT 2-meter handheld","82","02","WB3JJF",57,"Feb 82"
20,"Two-way power for the IC2AT 2-meter handheld","82","07","Comments WB4MNW, WB3JJF",8,"Jul 82"
20,"Understanding and Using 723 Voltage Regulators","89","03","K3OF",42,"Mar 89"
20,"Vacuum tube substitution","88","10","W2YE",58,"Oct 88"
20,"Variable high-voltage supply","79","12","W1OLP",62,"Dec 79"
20,"Variable power supply for transistor work","76","03","WA4MTH",68,"Mar 76"
20,"Variable Voltage Regulator, The Weekender","89","07","K3HW",20,"Jul 89"
20,"Variable-voltage power supply, 1.2 amps","78","07","WB6AFT",36,"Jul 78"
20,"VHF transceivers, regulated power supply for","80","09","WA8RXU",58,"Sep 80"
20,"Vibrator replacement, solid-state (HN)","72","08","K8RAY",70,"Aug 72"
20,"Voltage regulators, boosting bargain (HN)","77","05","WA7VVC",90,"May 77"
20,"Voltage regulators, IC","70","10","W7FLC",22,"Oct 70"
20,"Voltage regulators, IC","77","03","W6GXN",31,"Mar 77"
20,"Voltage safety valve","76","10","W2UVF",78,"Oct 76"
20,"Voltage-regulator ICs, adjustable","75","08","WB9KEY",36,"Aug 75"
20,"Voltage-regulator ICs, three-terminal","73","12","WB5EMI",26,"Dec 73"
20,"Voltage-regulator ICs, three-terminal","74","09","Added note (letter)",73,"Sep 74"
20,"Wind generators","75","01","W3FQJ",50,"Jan 75"
20,"Zener diodes (HN)","68","08","K3DPJ",79,"Aug 68"
21,"360-degree MINIMUF propagation prediction","87","02","N4UH",25,"Feb 87"
21,"6-meter sporadic-E openings, predicting","72","10","WA9RAQ",38,"Oct 72"
21,"6-meter sporadic-E openings, predicting","74","01","Added note (letter)",69,"Jan 74"
21,"Achieve polarization, diversity through variable power splitting","86","02","W3NGJ",10,"Feb 86"
21,"Artificial radio aurora, scattering characteristics of","74","11","WB6KAP",18,"Nov 74"
21,"Calculator-aided propagation predictions","79","04","N4UH",26,"Apr 79"
21,"Calculator-aided propagation predictions","79","09","Comments",6,"Sep 79"
21,"Digital ionosondes","83","12","K2RR",14,"Dec 83"
21,"Diversity reception of HF digital communication","90","06","WM6P",67,"Jun 90"
21,"DX forecaster","81","01","K0RYW",76,"Jan 81"
21,"DX forecaster","81","02","K0RYW",92,"Feb 81"
21,"DX forecaster","81","03","K0RYW",78,"Mar 81"
21,"DX forecaster","81","04","K0RYW",52,"Apr 81"
21,"DX forecaster","81","05","K0RYW",76,"May 81"
21,"DX forecaster","81","06","K0RYW",52,"Jun 81"
21,"DX forecaster","81","07","K0RYW",56,"Jul 81"
21,"DX forecaster","81","08","K0RYW",46,"Aug 81"
21,"DX forecaster","81","09","K0RYW",48,"Sep 81"
21,"DX forecaster","81","10","K0RYW",46,"Oct 81"
21,"DX forecaster","81","11","K0RYW",76,"Nov 81"
21,"DX forecaster","81","12","K0RYW",78,"Dec 81"
21,"DX forecaster","82","01","K0RYW",74,"Jan 82"
21,"DX forecaster","82","02","K0RYW",74,"Feb 82"
21,"DX forecaster","82","03","K0RYW",82,"Mar 82"
21,"DX forecaster","82","04","K0RYW",70,"Apr 82"
21,"DX forecaster","82","05","K0RYW",50,"May 82"
21,"DX forecaster","82","06","K0RYW",42,"Jun 82"
21,"DX forecaster","82","07","K0RYW",78,"Jul 82"
21,"DX forecaster","82","08","K0RYW",80,"Aug 82"
21,"DX forecaster","82","09","K0RYW",82,"Sep 82"
21,"DX forecaster","82","10","K0RYW",82,"Oct 82"
21,"DX forecaster","82","11","K0RYW",84,"Nov 82"
21,"DX forecaster","82","12","K0RYW",80,"Dec 82"
21,"DX forecaster","83","01","K0RYW",74,"Jan 83"
21,"DX forecaster","83","02","K0RYW",56,"Feb 83"
21,"DX forecaster","83","03","K0RYW",84,"Mar 83"
21,"DX forecaster","83","04","K0RYW",94,"Apr 83"
21,"DX forecaster","83","05","K0RYW",74,"May 83"
21,"DX forecaster","83","06","K0RYW",65,"Jun 83"
21,"DX forecaster","83","07","K0RYW",82,"Jul 83"
21,"DX forecaster","83","08","K0RYW",66,"Aug 83"
21,"DX forecaster","83","09","K0RYW",84,"Sep 83"
21,"DX forecaster","83","10","K0RYW",87,"Oct 83"
21,"DX forecaster","83","11","K0RYW",90,"Nov 83"
21,"DX forecaster","83","12","K0RYW",92,"Dec 83"
21,"DX forecaster","84","01","K0RYW",83,"Jan 84"
21,"DX forecaster","84","02","K0RYW",79,"Feb 84"
21,"DX forecaster","84","03","K0RYW",93,"Mar 84"
21,"DX forecaster","84","04","K0RYW",93,"Apr 84"
21,"DX forecaster","84","05","K0RYW",119,"May 84"
21,"DX forecaster","84","06","K0RYW",109,"Jun 84"
21,"DX forecaster","84","07","K0RYW",103,"Jul 84"
21,"DX forecaster","84","08","K0RYW",63,"Aug 84"
21,"DX forecaster","84","09","K0RYW",79,"Sep 84"
21,"DX forecaster","84","10","K0RYW",100,"Oct 84"
21,"DX forecaster","84","11","K0RYW",92,"Nov 84"
21,"DX forecaster","84","12","K0RYW",63,"Dec 84"
21,"DX forecaster","86","12","K0RYW",84,"Dec 86"
21,"DX forecaster","87","04","Comments:low band DXing, W0SII",6,"Apr 87"
21,"DX Forecaster: 1985 Review","86","04","K0RYW",99,"Apr 86"
21,"DX forecaster: 1986 propagation review","87","05","K0RYW",105,"May 87"
21,"DX forecaster: 1987 propagation summary","88","05","K0RYW",92,"May 88"
21,"DX Forecaster: 1988 Propagation Summary","89","05","K0RYW",109,"May 89"
21,"DX Forecaster: 1989 DX propagation conditions","90","05","K0RYW",82,"May 90"
21,"DX Forecaster: A Geomagnetic Ionosphere Disturbance","86","07","K0RYW",91,"Jul 86"
21,"DX forecaster: a spring DX solution","87","04","K0RYW",97,"Apr 87"
21,"DX Forecaster: Antenna-to-lonosphere Path Match","86","10","K0RYW",92,"Oct 86"
21,"DX Forecaster: Better DXing in 1989","89","01","K0RYW",96,"Jan 89"
21,"DX forecaster: DX propagation","87","01","K0RYW",108,"Jan 87"
21,"DX forecaster: DX propagation","87","02","Comment: HORANT for CP/M",6,"Feb 87"
21,"DX Forecaster: DX propagation software","90","04","K0RYW",88,"Apr 90"
21,"DX forecaster: DX signal quality","88","04","K0RYW",80,"Apr 88"
21,"DX Forecaster: DXing During the Summer QRN Season","89","08","K0RYW",96,"Aug 89"
21,"DX Forecaster: DXing From Winter Anomalies","89","12","K0RYW",78,"Dec 89"
21,"DX forecaster: dxing via the winter anomaly","87","10","K0RYW",91,"Oct 87"
21,"DX Forecaster: Equinoctial DX Propagation Brings Change","85","09","K0RYW",122,"Sep 85"
21,"DX Forecaster: Equinox DX Conditions","89","03","K0RYW",102,"Mar 89"
21,"DX forecaster: equinox problems","87","03","K0RYW",106,"Mar 87"
21,"DX forecaster: equinox season DX","87","10","K0RYW",85,"Oct 87"
21,"DX Forecaster: Equinox Season DX","86","09","K0RYW",98,"Sep 86"
21,"DX Forecaster: Equinox Season DXing","89","09","K0RYW",96,"Sep 89"
21,"DX forecaster: high sunspot propagation problems-part 1","88","09","K0RYW",104,"Sep 88"
21,"DX forecaster: high sunspot propagation problems-part 2","88","10","K0RYW",96,"Oct 88"
21,"DX forecaster: Ionosphere Matching","85","01","K0RYW",92,"Jan 85"
21,"DX Forecaster: Know Sporadic-E Skip","89","07","K0RYW",96,"Jul 89"
21,"DX forecaster: more DX propagation tips","87","02","K0RYW",88,"Feb 87"
21,"DX Forecaster: More New Cycle 22 DX","89","02","K0RYW",91,"Feb 89"
21,"DX Forecaster: More on Equinox Propagation","89","10","K0RYW",96,"Oct 89"
21,"DX Forecaster: More on Ionosphere Matching","85","02","K0RYW",75,"Feb 85"
21,"DX forecaster: more sporadic-E","87","09","K0RYW",85,"Sep 87"
21,"DX Forecaster: MUF Forecasting","85","12","K0RYW",98,"Dec 85"
21,"DX Forecaster: MUF Patterns and Trends","86","01","K0RYW",112,"Jan 86"
21,"DX Forecaster: receiving DX beacons","90","02","K0RYW",96,"Feb 90"
21,"DX Forecaster: Signal Levels During Summer Months","85","08","K0RYW",100,"Aug 85"
21,"DX forecaster: Solar cycle update","88","01","K0RYW",96,"Jan 88"
21,"DX Forecaster: Sporadic E Propagation","85","06","K0RYW",102,"Jun 85"
21,"DX forecaster: Sporadic E season - 1988","88","06","K0RYW",88,"Jun 88"
21,"DX Forecaster: Sporadic-E Basics for 1989","89","06","K0RYW",88,"Jun 89"
21,"DX Forecaster: Sporadic-E DX","86","06","K0RYW",101,"Jun 86"
21,"DX Forecaster: Sporadic-E Propagation","86","05","K0RYW",118,"May 86"
21,"DX forecaster: sporadic-E season","87","06","K0RYW",66,"Jun 87"
21,"DX Forecaster: spring frequency changes","90","03","K0RYW",85,"Mar 90"
21,"DX Forecaster: Spring Thunderstorm","89","04","K0RYW",110,"Apr 89"
21,"DX Forecaster: Springtime QRN","86","03","K0RYW",97,"Mar 86"
21,"DX Forecaster: Summer Propagation","86","08","K0RYW",90,"Aug 86"
21,"DX Forecaster: summer short skip signals","90","06","K0RYW",73,"Jun 90"
21,"DX forecaster: summer signal levels","88","08","K0RYW",88,"Aug 88"
21,"DX forecaster: summer thunderstorm noise","87","07","K0RYW",78,"Jul 87"
21,"DX forecaster: Summer thunderstorm noise","88","07","K0RYW",83,"Jul 88"
21,"DX forecaster: summertime DX","87","08","K0RYW",82,"Aug 87"
21,"DX Forecaster: Summertime DX","85","07","K0RYW",100,"Jul 85"
21,"DX Forecaster: Sunspot Cycle Update","85","10","K0RYW",105,"Oct 85"
21,"DX Forecaster: Sunspot cycle views","85","04","K0RYW",84,"Apr 85"
21,"DX Forecaster: Sunspot Minimum","86","11","K0RYW",84,"Nov 86"
21,"DX Forecaster: Sunspots and MUFs","86","02","K0RYW",78,"Feb 86"
21,"DX Forecaster: the DX beacon game","90","01","K0RYW",82,"Jan 90"
21,"DX forecaster: the ultimate antipode DX K0RYW","88","03","K0RYW",78,"Mar 88"
21,"DX forecaster: transequatorial DX update","88","02","K0RYW",90,"Feb 88"
21,"DX Forecaster: Vernal Equinox DX","85","03","K0RYW",120,"Mar 85"
21,"DX Forecaster: What's this Sporadic E?","85","05","K0RYW",79,"May 85"
21,"DX forecaster: Winter anomalous absorption","86","12","K0RYW",101,"Dec 86"
21,"DX forecaster: winter DX","87","11","K0RYW",57,"Nov 87"
21,"DX forecaster: Winter DX anomalies","88","12","K0RYW",110,"Dec 88"
21,"DX forecaster: Winter DX season","88","11","K0RYW",108,"Nov 88"
21,"DX Forecaster: Winter DX Season","85","11","K0RYW",92,"Nov 85"
21,"DX Forecaster: Winter DX Season","89","11","K0RYW",96,"Nov 89"
21,"Dxing by computer","84","08","NS6N and Buchanan, Waiter",81,"Aug 84"
21,"Echoes, long delay","69","05","WB6KAP",61,"May 69"
21,"Elmer's notebook: propagation basics","88","08","W1SL",81,"Aug 88"
21,"EME link calculator program","86","02","KE6ZE",9,"Feb 86"
21,"EME link calculator program","86","04","Comments, KC8OH",70,"Apr 86"
21,"Grayline propagation, fundamentals of","84","08","KR7L",77,"Aug 84"
21,"Ham Radio techniques: Dx is getting better and better! Here's why!","88","04","W6SAI",28,"Apr 88"
21,"Ham Radio Techniques: Have You Met SID?","89","07","W6SAI",31,"Jul 89"
21,"Ham Radio techniques: New Zealand, Maui, and the solar cycle","88","12","W6SAI",22,"Dec 88"
21,"Ham Radio techniques: On our way up!","88","09","W6SAI",26,"Sep 88"
21,"HF ground wave propagation","86","05","WA9GFR",81,"May 86"
21,"How to plot great circles on your favorite map","86","08","W4BW",81,"Aug 86"
21,"Ionospheric E-layer","69","08","WB6KAP",58,"Aug 69"
21,"Ionospheric science, short history of","69","08","WB6KAP",58,"Aug 69"
21,"L-band ground wave propagation program","86","01","WA9GFR and Joseph R. Hennel",103,"Jan 86"
21,"L-band ground wave propagation program","86","04","Comment, WA9GFR",9,"Apr 86"
21,"Long-distance high frequency communications","68","07","WB6KAP",80,"Jul 68"
21,"Maximum usable frequency, predicting","68","09","WB6KAP",70,"Sep 68"
21,"Moon coordinates, determining basic","85","01","W2WD",38,"Jan 85"
21,"Moon-tracking by computer","84","03","K6WX",38,"Mar 84"
21,"New band propagation","83","01","KK2XJM (W4MB)",12,"Jan 83"
21,"Pathfinder- part two","88","10","K3FR",47,"Oct 88"
21,"Quiet sun, the","68","12","WB6KAP",76,"Dec 68"
21,"Radio astronomy and the search for extra terrestrial intelligence","85","03","WB3JZO",10,"Mar 85"
21,"Radio signals, radiation of","82","06","W1GV/4",26,"Jun 82"
21,"Return to the 360-degree propagation prediction","87","10","N4UH",41,"Oct 87"
21,"Russian Woodpecker, the: a continuing nuisance","84","11","KR7L",37,"Nov 84"
21,"Scatter-mode propagation, frequency synchronization for","71","09","K2OVS",26,"Sep 71"
21,"Skywave communications","90","03","WB3JZO",9,"Mar 90"
21,"Skywave communications, part 2","90","04","WB3JZO",60,"Apr 90"
21,"Skywave communications, part 3","90","05","WB3JZO",34,"May 90"
21,"Solar activity and the earth's magnetosphere","87","08","KR7L",8,"Aug 87"
21,"Solar cycle 20, vhfer's view of","74","12","WA5IYX",46,"Dec 74"
21,"Solar outages, predicting","85","03","VE7ABK",75,"Mar 85"
21,"Sporadic E and 50-MHz transatlantic propagation during 1987","88","07","G3NAQ",10,"Jul 88"
21,"Sunspot numbers","69","07","WB6KAP",63,"Jul 69"
21,"Sunspot numbers, smoothed","68","11","WB6KAP",72,"Nov 68"
21,"Sunspots and solar activity","69","01","WB6KAP",60,"Jan 69"
21,"Tropospheric-duct vhf communications","69","10","WB6KAP",68,"Oct 69"
21,"VHF meteor scatter communications","84","02","AI7J",69,"Feb 84"
21,"VHF/UHF world","84","09","W1JR",45,"Sep 84"
21,"VHF/UHF world","85","12","W1JR",85,"Dec 85"
21,"VHF/UHF world: improving meteor scatter communications","84","06","W1JR",82,"Jun 84"
21,"VHF/UHF world: meteor scatter communications","86","06","W1JR",68,"Jun 86"
21,"VHF/UHF world: meteor scatter communications","86","07","Short circuit",87,"Jul 86"
21,"VHF/UHF world: propagation update","85","07","W1JR",86,"Jul 85"
21,"VHF/UHF world: propagation update- part 2","88","06","W1JR",39,"Jun 88"
21,"VHF/UHF world: propagation update- part 3","88","07","W1JR",38,"Jul 88"
21,"VHF/UHF world: the VHF/UHF primer, an introduction to propagation","84","07","W1JR",14,"Jul 84"
21,"VHF/UHF world: uW and mm-wave propagation, part2","86","08","W1JR",69,"Aug 86"
22.1,"Active mixers, performance capability: part 1","82","03","DJ2LR",30,"Mar 82"
22.1,"Active mixers, performance capability: part 2","82","04","DJ2LR",38,"Apr 82"
22.1,"Antenna impedance transformer for receivers (HN)","70","01","W6NIF",70,"Jan 70"
22.1,"Antenna tuner, miniature receiver (HN)","69","03","WA7KRE",72,"Mar 69"
22.1,"Anti-QRM methods","71","05","W3FQJ",50,"May 71"
22.1,"Attenuation pads, receiving (letter)","74","01","K0HNQ",69,"Jan 74"
22.1,"Audio agc amplifier","73","12","WA5SNZ",32,"Dec 73"
22.1,"Audio agc principles and practice","71","06","WA5SNZ",28,"Jun 71"
22.1,"Audio amplifier and squelch circuit","68","08","W6AJF",36,"Aug 68"
22.1,"Audio filter for CW, tunable","70","08","WA1JSM",34,"Aug 70"
22.1,"Audio filter mod (HN)","72","01","K6HIU",60,"Jan 72"
22.1,"Audio filter, simple","70","10","W4NVK",44,"Oct 70"
22.1,"Audio filter, tunable peak-notch","70","03","W2EEY",22,"Mar 70"
22.1,"Audio filter, variable bandpass","70","04","W3AEX",36,"Apr 70"
22.1,"Audio filter-frequency translator for CW reception","70","06","W2EEY",24,"Jun 70"
22.1,"Audio filters for ssb and CW reception","76","11","K6SDX",18,"Nov 76"
22.1,"Audio filters, CW (letter)","75","06","6Y5SR",56,"Jun 75"
22.1,"Audio module, complete","73","06","K4DHC",18,"Jun 73"
22.1,"Audio processor, communications, for reception","80","01","W6NRW",71,"Jan 80"
22.1,"Audio, improved for receivers","77","04","K7GCO",74,"Apr 77"
22.1,"Audio-filters, inexpensive","72","08","W8YFB",24,"Aug 72"
22.1,"Auto-product detection of double-sideband","80","03","K4UD",58,"Mar 80"
22.1,"Auto-product detection of double-sideband","80","10","Letter G3JIP",6,"Oct 80"
22.1,"Automatic repeater/receiver sensitivity (HN)","82","01","VE7ABK",81,"Jan 82"
22.1,"Bandspreading techniques (letter)","79","01","Anderson, Leonard H.",6,"Jan 79"
22.1,"Bandspreading techniques for resonant circuits","77","02","Anderson, Leonard H.",46,"Feb 77"
22.1,"Bandspreading techniques for resonant circuits","77","12","Short circuit",69,"Dec 77"
22.1,"Bandspreading techniques for resonant circuits (letter)","78","08","W0EJO",6,"Aug 78"
22.1,"Batteries, how to select for portable equipment","73","08","WA0AIK",40,"Aug 73"
22.1,"Bfo multiplexer for a multimode detector","75","10","WA3YGJ",52,"Oct 75"
22.1,"Bragg-cell receiver","83","02","WB3JZO",42,"Feb 83"
22.1,"Broadband jfet amplifiers","79","11","N6DX",12,"Nov 79"
22.1,"Calibrator crystals (HN)","71","11","K6KA",66,"Nov 71"
22.1,"Calibrator, plug-in frequency","69","03","K6KA",22,"Mar 69"
22.1,"Calibrator, simple frequency-divider using mos ICs","69","08","W6GXN",30,"Aug 69"
22.1,"Cascaded stages, IMD and intercept points of","84","11","W3IMG",28,"Nov 84"
22.1,"CB to 10-meter conversions, scanner","85","11","W2FMY, KB2GA",98,"Nov 85"
22.1,"Communications receiver","82","07","K2BLA",12,"Jul 82"
22.1,"Communications receivers, calculating the cascade intercept point of","80","08","WA7TDB",50,"Aug 80"
22.1,"Communications receivers, design ideas for","74","06","Moors",12,"Jun 74"
22.1,"Communications receivers, designing for strong-signal performance","73","02","Moors",6,"Feb 73"
22.1,"Compact 75-meter monoband transceiver","85","11","K1BQT",13,"Nov 85"
22.1,"Compact 75-meter monoband transceiver","86","01","Short circuit",66,"Jan 86"
22.1,"Converting a vacuum-tube receiver to solid-state","69","02","W1OOP",26,"Feb 69"
22.1,"Counter dials, electronic","70","09","K6KA",44,"Sep 70"
22.1,"Crystal ladder filters, systematic design of","82","02","N7WD",40,"Feb 82"
22.1,"Crystal-filter design, practical","76","11","PY2PEC",34,"Nov 76"
22.1,"CW filter, adding (HN)","73","09","W2OUX",66,"Sep 73"
22.1,"CW filter, high performance","81","04","W3NON",18,"Apr 81"
22.1,"CW filter, high performance","81","11","Comments W3NQN",6,"Nov 81"
22.1,"CW monitor, simple","71","01","WA9OHR",65,"Jan 71"
22.1,"CW processor for communications receivers","71","10","W6NRW",17,"Oct 71"
22.1,"CW reception, enhancing through a simulated-stereo technique","74","10","WA1MKP",61,"Oct 74"
22.1,"CW reception, noise reduction for","73","09","W2ELV",52,"Sep 73"
22.1,"CW regenerator for interference-free communications","74","04","Leward, Libenschek",54,"Apr 74"
22.1,"CW selectivity with crystal bandpassing","69","06","W2EEY",52,"Jun 69"
22.1,"CW transceiver operation with transmit-receive offset","70","09","W1DAX",56,"Sep 70"
22.1,"Detector, logarithmic with post-injection marker generator","80","03","W1ERW",36,"Mar 80"
22.1,"Detector, reciprocating","72","03","W1SNN",32,"Mar 72"
22.1,"Detector, reciprocating","74","03","Added notes",54,"Mar 74"
22.1,"Detector, reciprocating","75","05","Added notes",76,"May 75"
22.1,"Detector, single-signal phasing type","76","10","WB9CYY",71,"Oct 76"
22.1,"Detector, single-signal phasing type","77","12","Short circuit",68,"Dec 77"
22.1,"Detector, superregenerative, optimizing","72","07","Ring",32,"Jul 72"
22.1,"Detectors, fm, survey of","76","06","W6GXN",22,"Jun 76"
22.1,"Detectors, ssb","68","11","Belt",22,"Nov 68"
22.1,"Digital display","79","03","N3FG",40,"Mar 79"
22.1,"Digital display","79","07","Comments",6,"Jul 79"
22.1,"Digital frequency display","76","09","WB2NYK",26,"Sep 76"
22.1,"Digital frequency readout using the Commodore 64","85","11","W3NNL",83,"Nov 85"
22.1,"Digital readout, universal","78","12","WB8IFM",34,"Dec 78"
22.1,"Digital vfo basics","78","11","Earnshaw",18,"Nov 78"
22.1,"Diode detectors","76","01","W6GXN",28,"Jan 76"
22.1,"Diode detectors","77","02","Comments",77,"Feb 77"
22.1,"Direct-conversion receivers (HN)","78","09","YU2HL",100,"Sep 78"
22.1,"Diversity receiving system","71","12","W2EEY",12,"Dec 71"
22.1,"Diversity reception","79","11","K4KJ",48,"Nov 79"
22.1,"Double-balanced mixer, active, high-dynamic range","77","11","DJ2LR",90,"Nov 77"
22.1,"Dynamic range, measuring","79","11","WB6CTW",56,"Nov 79"
22.1,"Elmer's notebook: receiver buzzwords","87","11","W1SL",100,"Nov 87"
22.1,"Extending receive coverage for the IC-02 and IC-04","86","07","WB6GTM",77,"Jul 86"
22.1,"External product detector improves receiver performance","85","11","W6GB",107,"Nov 85"
22.1,"Famous Equipment of Yesteryear","89","11","K4KJ",43,"Nov 89"
22.1,"Filter alignment","75","08","W7UC",61,"Aug 75"
22.1,"Filter, vari-Q","73","09","W1SNN",62,"Sep 73"
22.1,"Frequency calibration using 60 kHz WWVB","88","03","W4ZPS",45,"Mar 88"
22.1,"Frequency calibrator, how to design","71","07","W3AEX",54,"Jul 71"
22.1,"Frequency calibrator, receiver","71","12","W5UQS",28,"Dec 71"
22.1,"Frequency measurement of received signals","73","10","W4AAD",38,"Oct 73"
22.1,"Frequency spotter, general coverage","70","11","W5JJ",36,"Nov 70"
22.1,"Frequency standard (HN)","72","09","WA7JIK",69,"Sep 72"
22.1,"Frequency standard, universal","74","02","K4EEU",40,"Feb 74"
22.1,"Frequency standard, universal","74","05","Short circuit",72,"May 74"
22.1,"Frequency-marker standard using cmos","77","08","W4IYB",44,"Aug 77"
22.1,"Ham radio techniques: "white noise" revisited","87","10","W6SAI",79,"Oct 87"
22.1,"Ham radio techniques: "white noise" technology bites back","87","01","W6SAI",55,"Jan 87"
22.1,"Hang agc circuit for ssb and CW","72","09","W1ERJ",50,"Sep 72"
22.1,"Headphone cords (HN)","75","11","W2OLU",62,"Nov 75"
22.1,"High dynamic range mixing with the Si8901","88","03","KB6QJ",11,"Mar 88"
22.1,"High-stability BFO for receiver applications","85","06","K1ZJH",28,"Jun 85"
22.1,"I-f amplifier design","77","03","DJ2LR",10,"Mar 77"
22.1,"I-f amplifier design","77","05","Short circuit",94,"May 77"
22.1,"I-f detector receiver module","76","08","K6SDX",34,"Aug 76"
22.1,"I-f system, multimode","71","09","WA2IKL",39,"Sep 71"
22.1,"I-f transformers, problems and cures - Weekender","79","03","K4IPV",56,"Mar 79"
22.1,"I.f cathode jack","68","09","W6HPH",28,"Sep 68"
22.1,"Image suppression (HN)","72","12","W6NIF",68,"Dec 72"
22.1,"Intelligibility of communications receivers, improving","70","08","WA5RAQ",53,"Aug 70"
22.1,"Interference, electric fence","72","07","K6KA",68,"Jul 72"
22.1,"Interference, hi-fi (HN)","75","03","K6KA",63,"Mar 75"
22.1,"Interference, rf","70","12","W1DTY",12,"Dec 70"
22.1,"Interference, rf","73","03","WA3NFW",30,"Mar 73"
22.1,"Interference, rf, its cause and cure","75","06","G3LLL",26,"Jun 75"
22.1,"Intermodulation distortion, reducing in high-frequency receivers","77","03","WB4ZNV",26,"Mar 77"
22.1,"Intermodulation distortion, reducing in high-frequency receivers","77","12","Short circuit",69,"Dec 77"
22.1,"LF converter, fixed-tuned","83","01","K1RGO",19,"Jan 83"
22.1,"Linear Tuning with a War Surplus Capacitor","89","06","N2DCH",40,"Jun 89"
22.1,"Local oscillator, phase-locked","71","03","VE5FP",6,"Mar 71"
22.1,"Local-oscillator waveform effects on spurious mixer responses","74","06","Robinson, Smith",44,"Jun 74"
22.1,"Low-noise Design Primer","89","11","WB4EHS",80,"Nov 89"
22.1,"Low-noise preamplifiers with good impedance match","82","11","W1OOP",36,"Nov 82"
22.1,"Measuring receiver dynamic range: an addendum (HN)","81","04","WB6CTW",86,"Apr 81"
22.1,"Mixer frequencies, graphical selection","88","06","W2HVN",41,"Jun 88"
22.1,"Mixer, crystal","75","11","W2LTJ",38,"Nov 75"
22.1,"Monitor receiver modification (HN)","76","02","W2CNQ",72,"Feb 76"
22.1,"Multiple receivers on one antenna (Two for one) (HN)","80","06","W2OZY",72,"Jun 80"
22.1,"Noise blanker","73","02","K4DHC",38,"Feb 73"
22.1,"Noise Blanker","79","02","W5QJR",54,"Feb 79"
22.1,"Noise blanker design","77","11","K7CVT",26,"Nov 77"
22.1,"Noise blanker, hot-carrier diode","69","10","W4KAE",16,"Oct 69"
22.1,"Noise blanker, hot-carrier diode","70","09","Short circuit",76,"Sep 70"
22.1,"Noise blanker, IC","69","05","W2EEY",52,"May 69"
22.1,"Noise blanker, IC","70","06","Short circuit",79,"Jun 70"
22.1,"Noise discriminator, a pulsewidth","84","11","W6NRW",23,"Nov 84"
22.1,"Noise effects in receiving systems","77","11","DJ2LR",34,"Nov 77"
22.1,"Noise figure relationships (HN)","80","04","W6WX",70,"Apr 80"
22.1,"Noise figure, the real meaning of","69","03","K6MIO",26,"Mar 69"
22.1,"Noise, understanding and handling","86","11","DJ2LR",10,"Nov 86"
22.1,"Optimizing the QF-1A Audio Filter","89","12","VE7BS",38,"Dec 89"
22.1,"Panoramic adaptor spectrum analyzer design notes","83","02","WA6NCX/1",26,"Feb 83"
22.1,"Panoramic adaptor spectrum analyzer design notes","83","09","Comments, K2CBY",12,"Sep 83"
22.1,"Panoramic adaptor spectrum analyzer design notes","83","10","Short circuit",70,"Oct 83"
22.1,"Panoramic reception, simple","68","10","W2EEY",14,"Oct 68"
22.1,"Phase-locked 9-MHZ bfo","78","11","W7GHM",49,"Nov 78"
22.1,"Phase-shift networks, design criteria","70","06","G3NRW",34,"Jun 70"
22.1,"Phaselocked up-converter","79","11","W7GHM",26,"Nov 79"
22.1,"Power-line noise","79","02","K4TWJ",60,"Feb 79"
22.1,"Preamp at work, Quiet!","84","11","N6TX",14,"Nov 84"
22.1,"Preamplifier, wideband","76","10","W1AAZ",60,"Oct 76"
22.1,"Product detector, hot-carrier diode","69","10","VE3GFN",12,"Oct 69"
22.1,"Radio-direction finder","70","03","W6JTT",38,"Mar 70"
22.1,"Radio-frequency interference","73","03","WA3NFW",30,"Mar 73"
22.1,"Radiotelegraph translator and transcriber","71","11","W7CUU, K7KFA",8,"Nov 71"
22.1,"Radiotelegraph translator and transcriber","72","05","Eliminating the matrix KH6AP",60,"May 72"
22.1,"Receiver dynamic range","82","12","W3JZO",77,"Dec 82"
22.1,"Receiver dynamic range (letter)","80","08","AA6PZ",7,"Aug 80"
22.1,"Receiver impedance matching (HN)","68","08","W0ZFN",79,"Aug 68"
22.1,"Receiver input temperature (letter)","85","04","WA6JTD",13,"Apr 85"
22.1,"Receiver spurious response","77","11","Anderson",82,"Nov 77"
22.1,"Receiver tuning mechanism selection","86","11","PY2PE1C",31,"Nov 86"
22.1,"Receiver, 10 through 80-meter homebrew","85","11","N1BFV",40,"Nov 85"
22.1,"Receivers - some problems and cures","77","12","WB0JGP, K8RAH",10,"Dec 77"
22.1,"Receivers - some problems and cures","78","10","Ham notebook",94,"Oct 78"
22.1,"Receivers - some problems and cures","79","02","Short circuit",94,"Feb 79"
22.1,"Receiving RTTY, automatic frequency control for","71","09","W5NPO",50,"Sep 71"
22.1,"Reciprocating detector as fm discriminator","73","03","W1SNN",18,"Mar 73"
22.1,"Reciprocating-detector converter","74","09","W1SNN",58,"Sep 74"
22.1,"Remote-site receivers and repeater operation","83","01","K9EID",36,"Jan 83"
22.1,"Resurrecting old receivers","76","12","K4IPV",52,"Dec 76"
22.1,"Rf amplifier, wideband","75","04","WB4KSS",58,"Apr 75"
22.1,"Rf amplifiers for communications receivers","74","09","Moors",42,"Sep 74"
22.1,"Rf amplifiers, isolating parallel currents in","77","02","G3IPV",40,"Feb 77"
22.1,"Rf-agc amplifier, high-performance","78","09","WA1FRJ",64,"Sep 78"
22.1,"Rotary dial and encoder for digital tuning","82","12","N3CA",30,"Dec 82"
22.1,"S-meter readings (HN)","68","06","W1DTY",56,"Jun 68"
22.1,"S-meter, a calibrated","86","01","W7SX",23,"Jan 86"
22.1,"S-meter, a calibrated","86","04","Short circuit",45,"Apr 86"
22.1,"S-meters, solid-state","75","03","K6SDX",20,"Mar 75"
22.1,"Selectivity and gain control, improved","77","11","VE3GFN",71,"Nov 77"
22.1,"Selectivity, receiver (letter)","74","01","K4ZZV",68,"Jan 74"
22.1,"Sensitivity, noise figure and dynamic range","75","10","W1DTY",8,"Oct 75"
22.1,"Signal-strength, measuring","80","08","W2YE",20,"Aug 80"
22.1,"Signals, how many does a receiver see?","77","06","DJ2LR",58,"Jun 77"
22.1,"Signals, how many does a receiver see?","77","09","Comments",101,"Sep 77"
22.1,"Spectrum analyzer, a handheld optical","84","04","WA4WDL",23,"Apr 84"
22.1,"Spectrum analyzer, four channel","72","10","W9IA",6,"Oct 72"
22.1,"Squelch, audio-actuated","72","04","K4MOG",52,"Apr 72"
22.1,"Ssb signals, monitoring","72","03","W6VFR",36,"Mar 72"
22.1,"Superhet tracking calculations","78","10","WA5SNZ",30,"Oct 78"
22.1,"Superregenerative detector, optimizing","72","07","Ring",32,"Jul 72"
22.1,"Superregenerative receiver, improved","70","12","JA1BHG",48,"Dec 70"
22.1,"Talking clock (letter)","80","02","N9KV",75,"Feb 80"
22.1,"Talking digital readout (letter)","80","05","N5AF",6,"May 80"
22.1,"Ten-Tec Argosy, Upgrade","86","11","WB3JZO",38,"Nov 86"
22.1,"Threshold-gate/limiter for CW reception","72","01","W2ELV",46,"Jan 72"
22.1,"Threshold-gate/limiter for CW reception","72","05","Added notes (letter) W2ELV",59,"May 72"
22.1,"Troubleshooting the dead receiver","76","06","K4IPV",56,"Jun 76"
22.1,"True frequency digital readout for the HW-101","87","01","NU4F",8,"Jan 87"
22.1,"True frequency digital readout for the HW-101","88","08","Short circuit",41,"Aug 88"
22.1,"TS-930S headset audio, increased undistorted (HN)","85","10","W6FR",128,"Oct 85"
22.1,"Two-Loop 10-Hz Step 40-70 MHz Synthesizer","89","01","PY1LL & C Mathias",24,"Jan 89"
22.1,"Vacuum-tube receivers, updating","78","12","W6HPH",62,"Dec 78"
22.1,"Vacuum-tube receivers, updating","79","12","Short circuit",73,"Dec 79"
22.1,"VHF/UHF world: broadband amplifiers in receiver design","86","11","W1JR",91,"Nov 86"
22.1,"VHF/UHF world: high dynamic range receivers","84","11","W1JR",97,"Nov 84"
22.1,"VHF/UHF world: high dynamic range receivers","85","01","Short circuit",103,"Jan 85"
22.1,"VHF/UHF world: low noise receiver update - part1","87","11","W1JR",77,"Nov 87"
22.1,"Vlf converter (HN)","76","07","W3CPU",69,"Jul 76"
22.1,"Weak signal reception in CW receivers","71","11","ZS6BT",44,"Nov 71"
22.1,"Wideband amplifier summary","79","11","DJ2LR",34,"Nov 79"
22.1,"WWV receiver, five-frequency","76","07","W6GXN",36,"Jul 76"
22.2,"1.9MHz receiver","69","12","W3TNO",6,"Dec 69"
22.2,"15-meter sideband transceiver","83","03","WA4ZXF",12,"Mar 83"
22.2,"15-meter sideband transceiver","83","07","Short circuit",80,"Jul 83"
22.2,"160-meter receiver, simple","70","11","W6FPO",44,"Nov 70"
22.2,"20-meter receiver with digital readout, part 1","77","10","K6SDX",48,"Oct 77"
22.2,"20-meter receiver with digital readout, part 2","77","11","K6SDX",56,"Nov 77"
22.2,"28-MHz superregen receiver","68","11","K2ZSQ",70,"Nov 68"
22.2,"432-MHz converter","79","04","N9KD",74,"Apr 79"
22.2,"455-kHz bfo, transistorized","68","07","W6BLZ, K5GXR",12,"Jul 68"
22.2,"7-MHz direct-conversion receiver","77","01","W0YBF",16,"Jan 77"
22.2,"7-MHz receiver","79","04","K6SDX",12,"Apr 79"
22.2,"7-MHz ssb receiver and transmitter, simple","74","03","VE3GSD",6,"Mar 74"
22.2,"7-MHz ssb receiver and transmitter, simple","74","12","Short circuit",62,"Dec 74"
22.2,"80-meter receiver for the experimenter","81","02","W6XM",24,"Feb 81"
22.2,"80-meter receiver for the experimenter","81","06","Comments",6,"Jun 81"
22.2,"80-meter receiver, simple","86","11","WB2EAV",25,"Nov 86"
22.2,"Bandpass filters for receiver preselectors","75","02","W7ZOI",18,"Feb 75"
22.2,"Bandpass tuning, electronic, in the Drake R-4C","73","10","Horner",58,"Oct 73"
22.2,"BC-1206 for 7 MHz, converted","70","10","W4FIN",30,"Oct 70"
22.2,"BC-1206 for 7 MHz, converted","71","04","Short circuit",72,"Apr 71"
22.2,"BC-603 tank receiver, updating the","68","05","WA6IAK",52,"May 68"
22.2,"Better frequency stability for the Drake TR7","87","08","HB9ABO",21,"Aug 87"
22.2,"Blanking the Woodpecker, part 2: a practical circuit","82","02","VK1DN",18,"Feb 82"
22.2,"Blanking the Woodpecker, part 2: a practical circuit","82","07","Comments, NP4B",8,"Jul 82"
22.2,"Blanking the Woodpecker, part 3: an audio blanker","82","03","VK1DN",22,"Mar 82"
22.2,"Blanking the Woodpecker: part 1","82","01","VK1DN",20,"Jan 82"
22.2,"Card File station for 40 Meters, The Weekender","89","09","W6XM",56,"Sep 89"
22.2,"CAT control system for the Yaesu FT-757GX","87","11","SM6CPI",26,"Nov 87"
22.2,"CB to 10 fm transceiver conversion","83","02","VE3FIT, VE3AQN",16,"Feb 83"
22.2,"Collins 75A-4 hints (HN)","72","04","W6VFR",68,"Apr 72"
22.2,"Collins 75A-4 modifications (HN)","71","01","W4SD",67,"Jan 71"
22.2,"Collins receivers (letter)","78","01","G3UFZ",90,"Jan 78"
22.2,"Collins receivers, 300-Hz crystal filter for","75","09","W1DTY",58,"Sep 75"
22.2,"Communications receiver for 80 meters, IC","71","07","VE3ELP",6,"Jul 71"
22.2,"Communications receiver, five band","72","06","K6SDX",6,"Jun 72"
22.2,"Communications receiver, micropower","73","06","WB9FHC",30,"Jun 73"
22.2,"Communications receiver, micropower","73","12","Short circuit",58,"Dec 73"
22.2,"Communications receiver, miniaturized","74","09","K4DHC",24,"Sep 74"
22.2,"Communications receiver, optimum design for","76","10","DJ2LR",10,"Oct 76"
22.2,"Communications receiver, solid-state","75","10","I5TDJ",32,"Oct 75"
22.2,"Communications receiver, solid-state","75","12","Correction",59,"Dec 75"
22.2,"Communications receivers for the year 2000: part 1","81","11","DJ2LR",12,"Nov 81"
22.2,"Communications receivers for the year 2000: part 2","81","12","DJ2LR",36,"Dec 81"
22.2,"Communications receivers, high frequency, recent developments in circuits and techniques f","80","04","DJ2LR",20,"Apr 80"
22.2,"Communications receivers, miniature design ideas for","76","04","K4DHC",18,"Apr 76"
22.2,"Compact 20-meter CW receiver, A","87","06","K1BQT",8,"Jun 87"
22.2,"Compact 20-meter CW receiver, A","87","07","Short circuit",6,"Jul 87"
22.2,"Compact 20-meter CW receiver, A","87","09","Short circuit",81,"Sep 87"
22.2,"Compact SSB receiver","83","11","K1BQT",10,"Nov 83"
22.2,"Compact SSB receiver","84","03","Comments KAOGPE",10,"Mar 84"
22.2,"Companion receiver, all-mode","73","03","W1SNN",18,"Mar 73"
22.2,"Converter Tunes 4 to 18 MHz with No Bandswitch","89","05","W5FG",26,"May 89"
22.2,"Converter, hf, solid-state","72","02","VE3GFN",32,"Feb 72"
22.2,"Converter, tuned very low-frequency","74","11","OH2KT",49,"Nov 74"
22.2,"Converter, very low frequency receiving","76","11","W2IMB",24,"Nov 76"
22.2,"Crystal-controlled phase-locked converter","77","12","W3VF",58,"Dec 77"
22.2,"CW regenerator for Amateur receivers","80","10","W3BYM",64,"Oct 80"
22.2,"Designing a modern receiver","83","11","WB3JZO",23,"Nov 83"
22.2,"Designing a state-of-the-art receiver","87","11","KA2WEU/DJ2LR",17,"Nov 87"
22.2,"Digital HF radio: a sampling of techniques","85","04","KA2WEU/DJ2LR",19,"Apr 85"
22.2,"Digital HF radio: a sampling of techniques","85","05","Short circuit",121,"May 85"
22.2,"Digitally programmable high-frequency communications receiver","78","10","WA9HUV",10,"Oct 78"
22.2,"Digitally programmable high-frequency communications receiver","79","04","Comments Foot, WA9HUV",6,"Apr 79"
22.2,"Direct-conversion receivers","71","11","W3FQJ",59,"Nov 71"
22.2,"Direct-conversion receivers","77","11","PA0SE",44,"Nov 77"
22.2,"Direct-conversion receivers, improved selectivity","72","04","K6BIJ",32,"Apr 72"
22.2,"Direct-conversion receivers, simple active filters for","74","04","W7ZOI",12,"Apr 74"
22.2,"Diversity receiver, high-frequency, from the 1930s","80","04","K4KJ",34,"Apr 80"
22.2,"Double-conversion hf receiver with mechanical frequency readout","76","10","Perolo",26,"Oct 76"
22.2,"Drake R-4C product detector, improving (HN)","80","03","W3CVS",84,"Mar 80"
22.2,"ESSA weather receiver","68","05","W6GXN",36,"May 68"
22.2,"Fet converter for 10 to 40 meters, second-generation","70","01","VE3GFN",28,"Jan 70"
22.2,"Fet converter for 10 to 40 meters, second-generation","70","06","Short circuit",79,"Jun 70"
22.2,"Fet converter, bandswitching, for 40, 20, 15 and 10","68","07","VE3GFN",6,"Jul 68"
22.2,"Fet converter, bandswitching, for 40, 20, 15 and 10","69","05","postscript",68,"May 69"
22.2,"Frequency calibration using 60 kHz WWVB","88","03","W4ZPS",45,"Mar 88"
22.2,"Frequency synthesized local-oscillator system","78","10","W7GHM",60,"Oct 78"
22.2,"Frequency synthesizer for the Drake R-4","72","08","W6NBI",6,"Aug 72"
22.2,"Frequency synthesizer for the Drake R-4","74","09","Modification (letter)",74,"Sep 74"
22.2,"General coverage communications receiver","77","11","W6URH",10,"Nov 77"
22.2,"Gonset converter, solid-state modification of","69","09","Schuler",58,"Sep 69"
22.2,"Hammarlund HQ215, adding 160-meter coverage","72","01","W2GHK",32,"Jan 72"
22.2,"Heath SB-650 frequency display, using with other receivers","73","06","K2BYM",40,"Jun 73"
22.2,"HF superhet, 20-meter","86","11","N3ECZ",65,"Nov 86"
22.2,"High dynamic range mixing with the Si8901","88","03","KB6QJ",11,"Mar 88"
22.2,"High dynamic range receiver input stages","75","10","DJ2LR",26,"Oct 75"
22.2,"High-frequency DX receiver","76","12","WB2ZVU",10,"Dec 76"
22.2,"High-frequency receiver performance","84","02","G4OBU",33,"Feb 84"
22.2,"Improved stability and dial calibration for the Heathkit HW-8 (HN)","83","11","W3HVK",103,"Nov 83"
22.2,"Incremental tuning to your transceiver, adding","71","02","VE3GFN",66,"Feb 71"
22.2,"Inexpensive CW filter (HN)","82","01","WB1AFQ",80,"Jan 82"
22.2,"Low-noise 30-MHz preamplifier","78","10","W1HR",38,"Oct 78"
22.2,"Low-noise 30-MHz preamplifier","79","02","Short circuit",94,"Feb 79"
22.2,"Monitoring oscillator","72","12","W2JIO",36,"Dec 72"
22.2,"Multiband high-frequency converter","76","10","K6SDX",32,"Oct 76"
22.2,"Outboard receiver with a transceiver","68","09","W1DTY",12,"Sep 68"
22.2,"Outboard receiver with the SB-100, using an (HN)","70","02","K4GMR",68,"Feb 70"
22.2,"Overload response in the Collins 75A-4 receiver, improving","70","04","W6ZO",42,"Apr 70"
22.2,"Overload response in the Collins 75A-4 receiver, improving","70","09","Short circuit",76,"Sep 70"
22.2,"Pepperdyne receiver","88","11","W6QIF",33,"Nov 88"
22.2,"Phasing-type ssb receiver","73","08","WA0JYK",6,"Aug 73"
22.2,"Phasing-type ssb receiver","73","12","Short circuit",58,"Dec 73"
22.2,"Phasing-type ssb receiver","74","06","Added note (letter)",63,"Jun 74"
22.2,"Preamplifier, emitter-tuned, 21 MHz","72","04","WA5SNZ",20,"Apr 72"
22.2,"Preamplifier, low-noise high-gain transistor","69","02","W2EEY",66,"Feb 69"
22.2,"Preselector, general-coverage (HN)","70","10","W5OZF",75,"Oct 70"
22.2,"Q5er, solid-state","69","08","W5TKP",20,"Aug 69"
22.2,"Radio Interference to shortwave receivers (HN)","81","07","W6XM",88,"Jul 81"
22.2,"Receiver incremental tuning for the Swan 350 (HN)","71","07","K1KXA",64,"Jul 71"
22.2,"Receiver sweep alignment system","84","11","WB6BIH",124,"Nov 84"
22.2,"Receiver, Pocket, portable SSB","86","11","WB6BIH",55,"Nov 86"
22.2,"Receiver, reciprocating detector","72","11","W1SNN",44,"Nov 72"
22.2,"Receiver, reciprocating detector","72","12","Correction (letter)",77,"Dec 72"
22.2,"Receiver, versatile solid-state","70","07","W1PLJ",10,"Jul 70"
22.2,"Receiving RTTY with Heath SB receivers (HN)","71","10","K9HVW",64,"Oct 71"
22.2,"Reciprocating detector","78","10","W1SNN",68,"Oct 78"
22.2,"Regenerative detectors and a wideband amplifier for experimenters","70","03","W8YFB",61,"Mar 70"
22.2,"Rf amplifiers, selective","72","02","K6BIJ",58,"Feb 72"
22.2,"RTTY monitor receiver","72","12","K4EEU",27,"Dec 72"
22.2,"RTTY receiver-demodulator for net operation","73","02","VE7BRK",42,"Feb 73"
22.2,"RTTY with SB-300","68","07","W2ARZ",76,"Jul 68"
22.2,"Shortwave converter, portable","81","04","PY2PE1C",64,"Apr 81"
22.2,"Shortwave receiver, portable","84","04","PY2PE1C",67,"Apr 84"
22.2,"Shortwave receiver, portable monoband, with electronic digital frequency readout","80","01","PY2PE1C",42,"Jan 80"
22.2,"Simple 40-meter receiver - Weekender","80","09","W6XM",64,"Sep 80"
22.2,"Simple direct conversion receiver","88","12","WA3ENK",9,"Dec 88"
22.2,"Simple receivers from complex ICs","88","11","W6VEH",10,"Nov 88"
22.2,"Simple shortwave broadcast receiver","83","11","W6XM",83,"Nov 83"
22.2,"Solid-state 75A-4 receiver","88","11","KF7M",67,"Nov 88"
22.2,"Superhet coilset, design with a microcomputer","84","11","Sterrenburg, F.A.S.",113,"Nov 84"
22.2,"SW receiver, a double conversion portable","84","11","PY2PE1C",48,"Nov 84"
22.2,"Swan 350 CW monitor (HN)","72","06","K1KXA",63,"Jun 72"
22.2,"Synthesizer, high resolution hf (letter)","79","01","DJ2LR",6,"Jan 79"
22.2,"Ten-Tec Omni-D, improved CW agc for (HN)","80","01","W6OA",88,"Jan 80"
22.2,"Thumbwheel frequency selector for the Yaesu FT-757GX","87","11","KA9SNF",33,"Nov 87"
22.2,"Tomorrow's receivers: what will the next 20 years bring?","87","11","W7SX",8,"Nov 87"
22.2,"Transceiver selectivity improved (HN)","70","10","VE3BWD",74,"Oct 70"
22.2,"Transceiver, 40-meter, for low-power operation","80","04","WB5DJE",12,"Apr 80"
22.2,"Transceivers, quasi-bilateral if for","84","12","K1ZJH",75,"Dec 84"
22.2,"Tuner overload, eliminating (HN)","73","01","VE3GFN",66,"Jan 73"
22.2,"Tuner overload, eliminating (HN)","74","01","Attenuators for (letter)",69,"Jan 74"
22.2,"Two-band novice superhet","68","08","Thorpe",66,"Aug 68"
22.2,"Two-band receiver, extending the modular","84","11","WA3TFS",57,"Nov 84"
22.2,"Two-band receiver, modular","83","07","WA3TFS",53,"Jul 83"
22.2,"Two-band receiver, modular","84","09","Comments, WA3TFS",8,"Sep 84"
22.2,"Understanding performance data of high-frequency receivers","81","11","K6FM",30,"Nov 81"
22.2,"Understanding performance data of high-frequency receivers","82","08","Comments KL7HT, K6FM",8,"Aug 82"
22.2,"Up-conversion receiver for the high-frequency bands: part 1","81","11","W2VJN",54,"Nov 81"
22.2,"Up-conversion receiver for the high-frequency bands: part 2","81","12","W2VJN",20,"Dec 81"
22.2,"Variable Gain 160-meter Preamp","89","10","KD9SV",46,"Oct 89"
22.2,"Weather receiver, low-frequency","68","10","W6GXN",36,"Oct 68"
22.2,"Woodpecker noise blanker","80","06","DJ2LR",18,"Jun 80"
22.2,"WWV receiver","77","02","Hudor, Jr.",28,"Feb 77"
22.2,"WWV receiver, fixed-tuned","69","11","W6GXN",24,"Nov 69"
22.2,"WWV receiver, regenerative","73","04","WA5SNZ",42,"Apr 73"
22.2,"WWV receiver, simple (HN)","70","07","WA3JBN",68,"Jul 70"
22.2,"WWV receiver, simple (HN)","70","12","Short circuit",72,"Dec 70"
22.2,"WWV receiver, simple (HN)","70","12","WA3JBN",55,"Dec 70"
22.2,"WWV-WWVH, amateur applications for","72","01","W3FQJ",53,"Jan 72"
22.3,"1296-MHz converter, solid-state","70","11","VK4ZT",6,"Nov 70"
22.3,"1296-MHz preamplifier","75","10","WA6UAM",42,"Oct 75"
22.3,"1296-MHz preamplifier, low-noise","71","06","WA2VTR",50,"Jun 71"
22.3,"1296-MHz preamplifier, low-noise","72","01","Added note (letter)",65,"Jan 72"
22.3,"1296-MHz, double-balanced mixers for","75","07","WA6UAM",8,"Jul 75"
22.3,"144-432 MHz GaAs fet preamp","79","11","JH1BRY",38,"Nov 79"
22.3,"144-MHz converter (HN)","70","08","K0VQY",71,"Aug 70"
22.3,"144-MHz converter (letter)","71","10","W0LER",71,"Oct 71"
22.3,"144-MHz converter, hot-carrier diode","69","10","K8CJU",6,"Oct 69"
22.3,"144-MHz converter, modular","70","10","W6UOV",64,"Oct 70"
22.3,"144-MHz converters, choosing fets for (HN)","69","08","K6JYO",70,"Aug 69"
22.3,"144-MHz preamp, low-noise","76","04","W1DTY",40,"Apr 76"
22.3,"144-MHz preamp, super (HN)","69","10","K6HCP",72,"Oct 69"
22.3,"144-MHz preamplifier, improved","72","03","WA2GCF",25,"Mar 72"
22.3,"144-MHz preamplifier, improved","72","07","Added notes",73,"Jul 72"
22.3,"2-Meter Converter with Q Multiplier","89","11","WA9HUV",33,"Nov 89"
22.3,"220-MHz mosfet converter","69","01","WB2EGZ",28,"Jan 69"
22.3,"220-MHz mosfet converter","69","07","Short circuit",76,"Jul 69"
22.3,"2304-MHz converter, solid-state","72","03","K2JNG, WA2LTM, WA2VTR",16,"Mar 72"
22.3,"2304-MHz preamplifier, solid-state","72","08","WA2VTR",20,"Aug 72"
22.3,"28-30 MHz preamplifier for satellite reception","75","10","W1JAA",48,"Oct 75"
22.3,"432 MHz preamp (HN)","69","08","W1DTY",66,"Aug 69"
22.3,"432 MHz preamplifier and converter","75","07","WA2GCF",40,"Jul 75"
22.3,"432-MHz converter, low-noise","70","10","K6JC",34,"Oct 70"
22.3,"432-MHz fet converter, low noise","68","05","WA6SXC",18,"May 68"
22.3,"50-MHz preamplifier, improved","73","01","WA2GCF",46,"Jan 73"
22.3,"Cavity bandpass filters","80","03","W4FXE",46,"Mar 80"
22.3,"Communications receivers for the year 2000: part 1","81","11","DJ2LR",12,"Nov 81"
22.3,"Communications receivers for the year 2000: part 2","81","12","DJ2LR",36,"Dec 81"
22.3,"Converters for six and two meters, mosfet","71","02","WB2EGZ",41,"Feb 71"
22.3,"Converters for six and two meters, mosfet","71","12","Short circuit",96,"Dec 71"
22.3,"Cooled preamplifier for vhf-uhf","72","07","WA0RDX",36,"Jul 72"
22.3,"Extending receive coverage for the IC-02 and IC-04","86","07","WB6GTM",77,"Jul 86"
22.3,"Fet converters for 50, 144, 220 and 432 MHz","68","03","W6AJF",20,"Mar 68"
22.3,"Filter-preamplifiers for 50 and 144 MHz, etched","71","02","W5KNT",6,"Feb 71"
22.3,"Fm channel scanner","71","08","W2FPP",29,"Aug 71"
22.3,"Fm communications receiver, modular","69","06","K8AUH",32,"Jun 69"
22.3,"Fm communications receiver, modular","70","01","Correction",71,"Jan 70"
22.3,"Fm receiver frequency control (letter)","71","04","W3AFN",65,"Apr 71"
22.3,"Fm receiver performance, comparison of","72","08","VE7ABK",68,"Aug 72"
22.3,"Fm receiver, multichannel for six and two","74","02","W1SNN",54,"Feb 74"
22.3,"Fm receiver, tunable vhf","71","11","K8AUH",34,"Nov 71"
22.3,"Fm receiver, uhf","72","11","WA2GCF",6,"Nov 72"
22.3,"Fm repeaters, receiving system degradation in","69","05","K5ZBA",36,"May 69"
22.3,"HW-17A, perking up (HN)","70","08","WB2EGZ",70,"Aug 70"
22.3,"Improving vhf/uhf receivers","76","03","W1JAA",44,"Mar 76"
22.3,"Interesting preamplifier for 144 MHz (HN)","81","11","WA2GFP",50,"Nov 81"
22.3,"Interference, scanning receiver (HN)","72","09","K2YAH",70,"Sep 72"
22.3,"K9LHA 2-meter synthesizer, extending the range of (HN)","81","12","K9LHA",52,"Dec 81"
22.3,"lnterdigital preamplifier and comb-line bandpass filter for vhf and uhf","70","08","W5KHT",6,"Aug 70"
22.3,"Modular transmit and receive converters for 902 MHz","87","03","N6JH",17,"Mar 87"
22.3,"Monitor receivers, two-meter fm","74","04","WB5EMI",34,"Apr 74"
22.3,"Optical fm receiver","83","11","Poon and Pieper",53,"Nov 83"
22.3,"Optical fm receiver","84","01","Short circuit",85,"Jan 84"
22.3,"Optical fm receiver","84","06","Comment, W6OAL",13,"Jun 84"
22.3,"Overload problems with vhf converters, solving","73","01","W1OOP",53,"Jan 73"
22.3,"Receiver alignment techniques, vhf fm","75","08","K4IPV",14,"Aug 75"
22.3,"Receiver, modular two-meter fm","72","02","WA2GFB",42,"Feb 72"
22.3,"Receiver, vhf fm","75","11","WA2GCF",8,"Nov 75"
22.3,"Receiving converter, vhf four-band","76","10","W3TQM",64,"Oct 76"
22.3,"Scanning receiver for vhf fm, improved","74","11","WA2GCF",26,"Nov 74"
22.3,"Scanning receiver modifications, vhf fm (HN)","74","02","WA5WOU",60,"Feb 74"
22.3,"Scanning receivers for two-meter fm","74","08","K4IPV",28,"Aug 74"
22.3,"Six-meter converter, improved","70","08","K1BQT",50,"Aug 70"
22.3,"Six-meter mosfet converter","68","06","WB2EGZ",22,"Jun 68"
22.3,"Six-meter mosfet converter","68","08","Short circuit",34,"Aug 68"
22.3,"Squelch-audio amplifier for fm receivers","74","09","WB4WSU",68,"Sep 74"
22.3,"Ssb mini-tuner","70","10","K1BQT",16,"Oct 70"
22.3,"Synthesized 2-meter mobile stations, automation for","80","06","W9CGI",20,"Jun 80"
22.3,"Terminator, 50-ohm for vhf converters","77","02","WA6UAM",26,"Feb 77"
22.3,"Two-meter converter, 1.5 dB NF","68","07","WA6SXC",14,"Jul 68"
22.3,"Two-meter mosfet converter","68","08","WB2EGZ",22,"Aug 68"
22.3,"Two-meter mosfet converter","68","10","neutralizing",77,"Oct 68"
22.3,"Two-meter preamp, MM5000","68","10","W4KAE",49,"Oct 68"
22.3,"Vhf converter performance, optimizing (HN)","68","07","K2FSQ",18,"Jul 68"
22.3,"Vhf fm receiver (letter)","73","05","W8IHQ",76,"May 73"
22.3,"Vhf receiver scanner","73","02","K2LZG",22,"Feb 73"
22.3,"Vhf superregenerative receiver, low-voltage","73","07","WA5SNZ",22,"Jul 73"
22.3,"Vhf superregenerative receiver, low-voltage","74","03","Short circuit",64,"Mar 74"
22.3,"VHF/UHF world: low noise receiver update - part1","87","11","W1JR",77,"Nov 87"
22.3,"VHF/UHF world: low noise receiver update - part2","87","12","W1JR",72,"Dec 87"
22.3,"VHF/UHF world: VHF/UHF receivers","84","03","W1JR",42,"Mar 84"
22.4,"Receiver alignment","68","06","Allen",64,"Jun 68"
22.4,"Rf and i-f amplifiers, troubleshooting","70","09","Allen",60,"Sep 70"
22.4,"Signal injection in ham receivers","68","05","Allen",72,"May 68"
22.4,"Signal tracing in ham receivers","68","04","Allen",52,"Apr 68"
22.4,"Weak-signal source, 144 and 432 MHz","70","03","K6JC",58,"Mar 70"
22.4,"Weak-signal source, variable-output","71","09","K6JYO",36,"Sep 71"
23,"Active bandpass filter for RTTY","79","04","W4AYV",46,"Apr 79"
23,"AFSK generator (HN)","76","07","F8KI",69,"Jul 76"
23,"AFSK generator and demodulator","77","09","WB9ATW",26,"Sep 77"
23,"AFSK generator, an accurate and practical","80","08","K0SFU",56,"Aug 80"
23,"AFSK generator, crystal-controlled","72","07","K7BVT",13,"Jul 72"
23,"AFSK generator, crystal-controlled","73","12","W6LLO",14,"Dec 73"
23,"AFSK generator, crystal-controlled","74","12","Sluggish oscillator (letter)",59,"Dec 74"
23,"AFSK oscillators, solid-state","68","10","WA4FGY",28,"Oct 68"
23,"AFSK, digital","77","03","WA4VOS",22,"Mar 77"
23,"AFSK, digital","77","05","Short circuit",94,"May 77"
23,"An RTTY Converter","89","06","W1UO",76,"Jun 89"
23,"Audio-frequency keyer, simple","75","08","W2LTJ",56,"Aug 75"
23,"Audio-frequency shift keyer","76","09","KH6FMT",45,"Sep 76"
23,"Audio-frequency shift keyer, simple (C&T)","76","04","W1DTY",43,"Apr 76"
23,"Audio-shift keyer, continuous-phase","73","10","VE3CTP",10,"Oct 73"
23,"Audio-shift keyer, continuous-phase","74","03","Short circuit",64,"Mar 74"
23,"Automatic frequency control for receiving RTTY","71","09","W5NPO",50,"Sep 71"
23,"Automatic frequency control for receiving RTTY","72","01","Added note (letter)",66,"Jan 72"
23,"Autostart monitor receiver","72","12","K4EEU",37,"Dec 72"
23,"Autostart, digital RTTY","73","06","K4EEU",6,"Jun 73"
23,"Baudot, a vote for (letter)","82","03","W6NRM",8,"Mar 82"
23,"Carriage return, adding to the automatic line-feed generator (HN)","74","09","K4EEU",71,"Sep 74"
23,"Cleaning teleprinters (HN)","78","05","W8CD",86,"May 78"
23,"Coherent frequency-shift keying, need for","74","06","K3WJQ",30,"Jun 74"
23,"Coherent frequency-shift keying, need for","74","11","Added notes (letter)",58,"Nov 74"
23,"CRT intensifier for RTTY","71","07","K4VFA",18,"Jul 71"
23,"Crystal test oscillator and signal generator","73","03","K4EEU",46,"Mar 73"
23,"CW and RTTY, digital audio filter for","83","08","W1OER",60,"Aug 83"
23,"CW memory for RTTY identification","74","01","W6LLO",6,"Jan 74"
23,"Digital reperf/TD","78","11","WB9ATW",58,"Nov 78"
23,"DT-500 demodulator","76","03","K9HVW, K4OAH, WB4KUR",24,"Mar 76"
23,"DT-500 demodulator","76","10","Short circuit",85,"Oct 76"
23,"DT-600 demodulator","76","02","K9HVW, K4OAH, WB4KUR",8,"Feb 76"
23,"DT-600 demodulator","76","09","Letter, K5GZR",78,"Sep 76"
23,"DT-600 demodulator","76","10","Short circuit",85,"Oct 76"
23,"Dual demodulator terminal unit","78","10","KB9AT",74,"Oct 78"
23,"Dual demodulator terminal unit","79","10","Comments WB6PMV, KB9AT",6,"Oct 79"
23,"Duplex audio-frequency generator with AFSK features","79","09","WB6AFT",66,"Sep 79"
23,"Electronic speed conversion for RTTY teleprinters","71","12","WA6JYJ",36,"Dec 71"
23,"Electronic speed conversion for RTTY teleprinters","72","10","Printed circuit for",54,"Oct 72"
23,"Electronic teleprinter keyboard","78","08","W0PHY",56,"Aug 78"
23,"Frequency-shift meter, RTTY","70","06","VK3ZNV",53,"Jun 70"
23,"Hellschreiber (letter)","80","03","K6KA",6,"Mar 80"
23,"Hellschreiber (letter)","80","03","W6DKZ",6,"Mar 80"
23,"Hellschreiber (letter)","80","09","Comment, G5XB",6,"Sep 80"
23,"LED tuning indicator for RTTY","80","03","WA0ELA",50,"Mar 80"
23,"Line feed, automatic for RTTY","73","01","K4EEU",20,"Jan 73"
23,"Line-end Indicator, IC","75","11","W2OKO",22,"Nov 75"
23,"Mainline ST-5 autostart and antispace","72","12","K2YAH",46,"Dec 72"
23,"Mainline ST-5 RTTY demodulator","70","09","W6FFC",14,"Sep 70"
23,"Mainline ST-5 RTTY demodulator","70","12","Short circuit",72,"Dec 70"
23,"Mainline ST-6 RTTY demodulator","71","01","W6FFC",6,"Jan 71"
23,"Mainline ST-6 RTTY demodulator","71","04","Short circuit",72,"Apr 71"
23,"Mainline ST-6 RTTY demodulator, more uses for (letter)","71","07","W6FFC",69,"Jul 71"
23,"Mainline ST-6 RTTY demodulator, troubleshooting","71","02","W6FFC",50,"Feb 71"
23,"Message generator, random access memory RTTY","75","01","K4EEU",8,"Jan 75"
23,"Message generator, RTTY","74","02","W6OXP,W8KCO",30,"Feb 74"
23,"Modulator-demodulator for vhf operation","78","09","W6LLO",34,"Sep 78"
23,"Monitor scope, phase-shift","72","08","W3CIX",36,"Aug 72"
23,"Monitor scope, RTTY, Heath HO-10 and SB-610 as (HN)","74","09","K9HVW",70,"Sep 74"
23,"Monitor scope, RTTY, solid-state","71","10","WB2MPZ",33,"Oct 71"
23,"New MSO for RTTY (letter)","84","07","N2EO",12,"Jul 84"
23,"Performance and signal-to-noise ratio of low-frequency shift RTTY","76","12","K8SR",62,"Dec 76"
23,"Phase-coherent RTTY modulator","79","02","K5PA",26,"Feb 79"
23,"Phase-locked loop AFSK generator","73","03","K7ZOF",27,"Mar 73"
23,"Phase-locked loop RTTY terminal unit","72","01","W4FQM",8,"Jan 72"
23,"Phase-locked loop RTTY terminal unit","72","05","Correction",60,"May 72"
23,"Phase-locked loop RTTY terminal unit","74","07","Power supply for",60,"Jul 74"
23,"Phase-locked loop RTTY terminal unit","75","09","Optimization",22,"Sep 75"
23,"Phase-locked loop RTTY terminal unit","76","08","Update, W4AYV",16,"Aug 76"
23,"Precise tuning with ssb gear","70","10","W0KD",40,"Oct 70"
23,"Printed circuit for RTTY speed converter","72","10","W7POG",54,"Oct 72"
23,"RAM RTTY message generator, increasing capacity of (HN)","77","10","F2ES",86,"Oct 77"
23,"Receiver-demodulator for RTTY net operation","73","02","VE7BRK",42,"Feb 73"
23,"Ribbon re-inkers","72","06","W6FFC",30,"Jun 72"
23,"RTTY and AtariTM computer","83","07","K5VUV",36,"Jul 83"
23,"RTTY and AtariTM computer","84","02","Short circuit",10,"Feb 84"
23,"RTTY converter, miniature IC","69","05","K9MRL",40,"May 69"
23,"RTTY converter, miniature IC","69","08","Short circuit",80,"Aug 69"
23,"RTTY distortion: causes and cures","72","09","WB6IMP",36,"Sep 72"
23,"RTTY for the blind (letter)","72","08","VE7BRK",76,"Aug 72"
23,"RTTY line-length indicator (HN)","73","11","W2UVF",62,"Nov 73"
23,"RTTY oscilloscope input using line transformers (HN)","84","09","W6XM",87,"Sep 84"
23,"RTTY reception with Heath SB receivers (HN)","71","10","K9HVW",64,"Oct 71"
23,"RTTY tuning indicator, a free (HN)","81","10","N1AW",74,"Oct 81"
23,"RTTY with the SB-300","68","07","W2ARZ",76,"Jul 68"
23,"RTTY zero-beat indicator (HN)","83","10","W2QLI",78,"Oct 83"
23,"RTTY, introduction to","69","06","K6JFP",38,"Jun 69"
23,"Run RTTY on your Timex","85","04","NU4V",110,"Apr 85"
23,"Run RTTY on your VIC-20","85","04","W5TRS",120,"Apr 85"
23,"Selcom","78","06","K9HVW, WB4KUR, K4EID",10,"Jun 78"
23,"Serial converter for 8-level teleprinters","77","08","VE3CTP",67,"Aug 77"
23,"Serial converter for 8-level teleprinters","77","12","Short circuit",68,"Dec 77"
23,"Signal Generator, RTTY","71","03","W7ZTC",23,"Mar 71"
23,"Signal Generator, RTTY","71","12","Short circuit",96,"Dec 71"
23,"Simple circuit replaces jack patch panel","76","04","K4STE",25,"Apr 76"
23,"Slow ASCII","81","06","W3FVC",6,"Jun 81"
23,"Speed control, electronic, for RTTY","74","08","W3VF",50,"Aug 74"
23,"SSB transmitters, FSK adapter for","81","07","WA3PLC",12,"Jul 81"
23,"SSB transmitters, FSK adapter for","82","03","Comments N1AL, WA3PLC",8,"Mar 82"
23,"SSB transmitters, FSK adapter for","82","10","Comments WB5DPZ, N1AL",8,"Oct 82"
23,"ST-5 keys polar relay (HN)","74","05","W0LPD",72,"May 74"
23,"Swan 350 and 400 equipment on RTTY (HN)","69","08","WB2MIC",67,"Aug 69"
23,"Synchrophase afsk oscillator","70","12","W6FOO",30,"Dec 70"
23,"Synchrophase RTTY reception","70","11","W6FOO",38,"Nov 70"
23,"Tape editor","77","06","W3EAG",32,"Jun 77"
23,"Teleprinters, new look in","70","07","W6JTT",38,"Jul 70"
23,"Terminal unit, phase-locked loop","72","01","W4FQM",8,"Jan 72"
23,"Terminal unit, phase-locked loop","72","05","Correction",60,"May 72"
23,"Terminal unit, phase-locked loop","75","02","W4AYV",36,"Feb 75"
23,"Terminal unit, variable-shift RTTY","73","11","W3VF",16,"Nov 73"
23,"Test generator, RTTY","78","01","WB9ATW",64,"Jan 78"
23,"Test generator, RTTY (HN)","73","01","W3EAG",67,"Jan 73"
23,"Test generator, RTTY (HN)","73","03","W3EAG",59,"Mar 73"
23,"Test-message generator, RTTY","76","11","K9GSC, K9PKQ",30,"Nov 76"
23,"Time/date printout","76","06","W0LZT",18,"Jun 76"
23,"Time/date printout","77","12","Short circuit",68,"Dec 77"
23,"Timex/Sinclair newsletter (letter)","84","07","AD1B",12,"Jul 84"
23,"TRS-80 color computer for RTTY","83","06","W1OER",62,"Jun 83"
23,"Tuning indicator for RTTY and packet radio","88","09","W0HZR",65,"Sep 88"
23,"VIC-20 printer (HN)","84","09","W2QLI",88,"Sep 84"
23,"VIC-20 printer (HN)","85","03","Short circuit",145,"Mar 85"
23,"Voltage supply, precision for phase-locked terminal unit (HN)","74","07","WA6TLA",60,"Jul 74"
23,"XK2C AFSK generator, the","80","11","W3HVK",58,"Nov 80"
24,"28-30 MHz preamplifier for satellite reception","75","10","W1JAA",48,"Oct 75"
24,"432-MHz OSCAR antenna (HN)","75","07","W1JAA",58,"Jul 75"
24,"Amsat-Oscar D","78","04","W3PK, G3ZCZ",16,"Apr 78"
24,"Antenna accuracy in satellite tracking systems","79","06","N5KR",24,"Jun 79"
24,"Antenna control, automatic azimuth/elevation for satellite communications","75","01","WA3HLT",26,"Jan 75"
24,"Antenna control, automatic azimuth/elevation for satellite communications","75","12","Correction",58,"Dec 75"
24,"Antenna, simple satellite (HN)","75","02","WA6PXY",59,"Feb 75"
24,"Antennas, simple, for satellite communications","74","05","K4GSX",24,"May 74"
24,"Az-el antenna mount for satellite communications","75","03","W2LX",34,"Mar 75"
24,"Calcu-puter, OSCAR","78","12","W9CGI",34,"Dec 78"
24,"Circularly-polarized ground-plane antenna for satellite communications","74","12","K4GSX",28,"Dec 74"
24,"Communications, first step to satellite","72","11","K1MTA",52,"Nov 72"
24,"Communications, first step to satellite","73","04","Added notes (letter)",73,"Apr 73"
24,"Demodulator, telemetry, PSK, for OSCAR 10","85","04","G3RUH",50,"Apr 85"
24,"Elevation indicator, inexpensive","85","06","W5JTL",67,"Jun 85"
24,"First HT-to-HT QSO via OSCAR 10","84","09","WA2LQQ",32,"Sep 84"
24,"Future of the amateur satellite service","77","08","K2UBC",32,"Aug 77"
24,"G.O.E.S. reception: a simple approach","84","01","WA4WDL",46,"Jan 84"
24,"Geostationary satellite bearings with the TI-58/59 programmable calculator (HN)","81","04","WA6BKC",87,"Apr 81"
24,"Geostationary satellites, locating","81","10","W2TQK",66,"Oct 81"
24,"Geostationary satellites, locating","82","01","Comments W1DHX",8,"Jan 82"
24,"Geostationary satellites, locating","82","01","Short circuit",89,"Jan 82"
24,"Geostationary satellites, locating","82","02","Comments W2TI",8,"Feb 82"
24,"Graphic azimuth and elevation calculator","83","01","WB0VGI",25,"Jan 83"
24,"Introducing satellite communications","86","04","G3ZCZ",10,"Apr 86"
24,"Locate orbiting satellites","83","09","W0ZWW",72,"Sep 83"
24,"Medical data relay via Oscar","77","04","K7RGE",67,"Apr 77"
24,"Moon-tracking by computer","84","03","K6WX",38,"Mar 84"
24,"Oscar 7, communications techniques for","74","04","G3ZCZ",6,"Apr 74"
24,"Oscar antenna (C&T)","76","06","W1DTY",50,"Jun 76"
24,"Oscar antenna, mobile (HN)","76","05","W6OAL",67,"May 76"
24,"Oscar az-el antenna system","78","05","WA1NXP",70,"May 78"
24,"Oscar tracking program, HP-65 calculator (letters)","76","01","WA3THD",71,"Jan 76"
24,"Packet radio PSK modem for JAS-1/FO-12","87","02","G3RUH",8,"Feb 87"
24,"Phase III spacecraft orbits, geometry of","80","10","W8MQW",68,"Oct 80"
24,"Programming for automated satellite communication","78","06","KP4MD",68,"Jun 78"
24,"Receiving preamplifier for OSCAR 8 Mode J","78","06","K1RX and Puglia",20,"Jun 78"
24,"Satellite communications on 10 meters (letter)","79","12","G3IOR",12,"Dec 79"
24,"Satellite tracker, digitally-controlled","85","09","KA8OBL",102,"Sep 85"
24,"Satellite tracking - pointing and range with a pocket calculator","78","02","Ball, John A.",40,"Feb 78"
24,"Signal polarization, satellite","72","12","KH6IJ",6,"Dec 72"
24,"Signals from space, receiving","84","11","K8UR",67,"Nov 84"
24,"The Guerri report: communication satellites","86","06","W6MGI",108,"Jun 86"
24,"The Guerri report: super speed semiconductors","86","10","W6MGI",109,"Oct 86"
24,"Tracking satellites in elliptical orbits","81","03","WA6VJR",46,"Mar 81"
24,"Tracking the OSCAR satellites","77","09","Harmon, WA6UAP",18,"Sep 77"
24,"Update on ACSSB level-one adapter, project OSCAR (Oct. 86)","86","11","Comments: WB6JNN",9,"Nov 86"
24,"Work OSCAR 10 with your HT","84","09","WA2LQQ",29,"Sep 84"
25,"Amplifiers, biasing Class-A bipolar transistor","82","08","KQ7B",32,"Aug 82"
25,"Antenna bearings for geostationary satellites, calculating","78","05","N6TX",67,"May 78"
25,"Antenna switch for meters, solid-state","69","05","K2ZSQ",48,"May 69"
25,"Avalanche transistor circuits","70","12","W4NVK",22,"Dec 70"
25,"Beta master, the","68","08","K8ERV",18,"Aug 68"
25,"Charge flow In semiconductors","71","04","WB6BIH",50,"Apr 71"
25,"Collector Matching Networks","89","01","KZ9J",34,"Jan 89"
25,"Converting a vacuum-tube receiver to solid-state","69","02","W1OOP",26,"Feb 69"
25,"Converting a vacuum-tube receiver to solid-state","69","07","Short circuit",76,"Jul 69"
25,"Converting vacuum tube equipment to solid-state","68","08","W2EEY",30,"Aug 68"
25,"Cooling semiconductors part 1: designing and using heatsinks","84","07","Martin, Vaughn D.",33,"Jul 84"
25,"Cooling semiconductors part 2: blowers and fans","84","08","Martin, Vaughn D.",52,"Aug 84"
25,"Curve master, the","68","03","K8ERV",40,"Mar 68"
25,"Diodes, evaluating","71","12","W5JJ",52,"Dec 71"
25,"Dynamic transistor tester (HN)","71","10","VE7ABK",65,"Oct 71"
25,"Elmer's Notebook: FETS-The Other Transistors","89","02","W1SL",104,"Feb 89"
25,"Elmer's Notebook: Visual Aids- Light Emitting Diodes","89","07","W1SL",56,"Jul 89"
25,"Elmer's Notebook: Visual Aids- Liquid Crystal Displays","89","08","W1SL",81,"Aug 89"
25,"European semiconductor numbering system (C&T)","76","04","W1DTY",42,"Apr 76"
25,"Fet bias problems simplified","74","03","WA5SNZ",50,"Mar 74"
25,"Fet biasing","72","11","W3FQJ",61,"Nov 72"
25,"Fetrons, solid-state replacements for tubes","72","08","W1DTY",4,"Aug 72"
25,"Fetrons, solid-state replacements for tubes","73","10","Added notes",66,"Oct 73"
25,"Fetrons, solid-state replacements for tubes","74","06","Added notes",62,"Jun 74"
25,"Frequency multipliers","71","08","W6GXN",6,"Aug 71"
25,"Frequency multipliers, transistor","70","06","W6AJF",49,"Jun 70"
25,"GaAs FET performance and preamplifier application","83","03","K8UR",38,"Mar 83"
25,"GaAs FET performance and preamplifier application","83","07","Comments, KC0W",12,"Jul 83"
25,"GaAs field-effect transistors, introduction","78","01","WA2ZZF",74,"Jan 78"
25,"Glass semiconductors","69","07","W1EZT",54,"Jul 69"
25,"Grid-dip oscillator, solid-state conversion of","70","06","W6AJZ",20,"Jun 70"
25,"Heatsink problems, how to solve transistor","74","01","WA5SNZ",46,"Jan 74"
25,"High dynamic range mixing with the Si8901","88","03","KB6QJ",11,"Mar 88"
25,"Impulse generator, snap diode","72","10","Siegal, Turner",29,"Oct 72"
25,"Injection lasers (letter)","71","04","Mims",64,"Apr 71"
25,"Injection lasers, high power","71","09","Mims",28,"Sep 71"
25,"Linear power amplifier, high power solid-state","74","08","Chambers",6,"Aug 74"
25,"Linear transistor amplifier","71","09","W3FQJ",59,"Sep 71"
25,"Long-tail transistor biasing","68","04","W2DXH",64,"Apr 68"
25,"Matching techniques, broadband, for transistor rf amplifiers","77","01","WA7WHZ",30,"Jan 77"
25,"Microwave amplifier design, solid state","76","10","WA6UAM",40,"Oct 76"
25,"Mobile converter, solid-state modification of","69","09","Schuler",58,"Sep 69"
25,"Mosfet circuits","75","02","W3FQJ",50,"Feb 75"
25,"Mosfet power amplifier, 160 - 6 meters","78","11","WA1WLW",12,"Nov 78"
25,"Mosfet transistors (HN)","69","08","WB2EGZ",72,"Aug 69"
25,"Mospower fet (letter)","78","03","W3QQM",110,"Mar 78"
25,"Motorola fets (letter)","71","04","W1CER",64,"Apr 71"
25,"Motorola MPS transistors (HN)","68","04","W2DXH",42,"Apr 68"
25,"Neutralizing small-signal amplifiers","70","09","WA4WDK",40,"Sep 70"
25,"Noise, zener-diode (HN)","75","06","VE7ABK",59,"Jun 75"
25,"Parasitic oscillations in high-power transistor rf amplifiers","70","09","W0KGI",54,"Sep 70"
25,"Pentode replacement (HN)","70","02","W1DTY",70,"Feb 70"
25,"Power dissipation ratings of transistors","71","06","WN9CGW",56,"Jun 71"
25,"Power fets","71","04","W3FQJ",34,"Apr 71"
25,"Power transistors, parallelling (HN)","72","01","WA5EKA",62,"Jan 72"
25,"Practically speaking: non-ideal linear IC amplifiers typical problems","88","07","K4IPV",72,"Jul 88"
25,"Practically speaking: solid state rectifiers","86","08","K4IPV",51,"Aug 86"
25,"Practically speaking: substituting transistors - part1","86","09","K4IPV",92,"Sep 86"
25,"Practically speaking: substituting transistors - part2","86","10","K4IPV",66,"Oct 86"
25,"Predicting close encounters: OSCAR 7 and OSCAR 8","79","07","K2UBC",62,"Jul 79"
25,"Protecting solid-state devices from voltage transients","78","06","WB5DEP",74,"Jun 78"
25,"Relay, transistor replaces (HN)","70","01","W3NK",72,"Jan 70"
25,"Replace the unijunction transistor","68","04","K9VXL",58,"Apr 68"
25,"Rf power detecting devices","70","06","K6JYO",28,"Jun 70"
25,"Rf power transistors, how to use","70","01","WA7KRE",8,"Jan 70"
25,"Simple Infrared Detector, A (HN)","89","06","K1ZJH",27,"Jun 89"
25,"Snap diode impulse generator","72","10","Siegal, Turner",29,"Oct 72"
25,"Solid-state replacements","83","04","AK7N",46,"Apr 83"
25,"Solid-state Switching The Midland 13-509, The Weekender:","89","06","VE2HOT",17,"Jun 89"
25,"Surplus transistors, identifying","70","12","W2FPP",38,"Dec 70"
25,"Switching Inductive loads with solid-state devices (HN)","78","06","WA6ROC",99,"Jun 78"
25,"The Guerri report: super speed semiconductors","86","10","W6MGI",109,"Oct 86"
25,"Thyristors, introduction to","70","10","WA7KRE",54,"Oct 70"
25,"Transconductance tester for field-effect transistors","71","09","W6NBI",44,"Sep 71"
25,"Transistor amplifiers, tabulated characteristics of","71","03","W5JJ",30,"Mar 71"
25,"Transistor and diode tester","70","11","ZL2AMJ",65,"Nov 70"
25,"Transistor biasing, back to basics","84","12","WD4C",91,"Dec 84"
25,"Transistor breakdown voltages","75","02","WA5EKA",44,"Feb 75"
25,"Transistor lead identification With a DVM","89","10","K0GSS",62,"Oct 89"
25,"Transistor storage (HN)","68","06","K8ERV",58,"Jun 68"
25,"Transistor tester","68","07","WA6NIL",48,"Jul 68"
25,"Transistor tester for leakage and gain","68","05","W4BRS",68,"May 68"
25,"Transistor testing","70","07","Allen",62,"Jul 70"
25,"Transistor-tube talk (HN)","68","06","WA4NED",25,"Jun 68"
25,"Transistors for vhf transmitters (HN)","69","09","W1OOP",74,"Sep 69"
25,"Trapatt diodes (letter)","72","04","WA7NLA",72,"Apr 72"
25,"Troubleshooting around fets","68","10","Allen",42,"Oct 68"
25,"Troubleshooting transistor ham gear","68","07","Allen",64,"Jul 68"
25,"Understanding and Using 723 Voltage Regulators","89","03","K3OF",42,"Mar 89"
25,"Varactor diodes from rectifiers","90","06","W6WTU",40,"Jun 90"
25,"Versatile Transistor/Diode Tester","89","08","W5JE and W2YM",30,"Aug 89"
25,"Vfo transistors (HN)","69","11","W1OOP",74,"Nov 69"
25,"VHF/UHF world: the ubiquitous diode","87","02","W1JR",51,"Feb 87"
25,"VHF/UHF world: the ubiquitous diode, part 2","87","03","W1JR",55,"Mar 87"
25,"Y parameters in rf design, using","72","07","WA0TCU",46,"Jul 72"
25,"Zener diodes (HN)","68","08","K3DPJ",79,"Aug 68"
25,"Zener tester, low voltage (HN)","69","11","K3DPJ",72,"Nov 69"
26,"1296-MHz ssb transceiver","74","09","WA6UAM",8,"Sep 74"
26,"144-MHz linear, 2 kW","70","04","W6UOV, W6ZO, K6DC",26,"Apr 70"
26,"144-MHz low-drive kilowatt linear","70","07","W6HHN",26,"Jul 70"
26,"144-MHz transverter, the TR-144","72","02","K1RAK",24,"Feb 72"
26,"3-500Z in amateur service, the","68","03","W6SAI",56,"Mar 68"
26,"432 MHz rf power amplifier","70","04","K6JC",40,"Apr 70"
26,"432-MHz ssb converter","70","01","K6JC",48,"Jan 70"
26,"432-MHz ssb converter","70","06","Short circuit",79,"Jun 70"
26,"432-MHz ssb, practical approach to","71","06","WA2FSQ",6,"Jun 71"
26,"ACSSB: a level-one adapter","86","10","WB6JNN",10,"Oct 86"
26,"Adjusting SSB amplifiers","85","09","AG6K",33,"Sep 85"
26,"Balanced modulator, integrated-circuit","70","09","K7QWR",6,"Sep 70"
26,"Balanced modulators, dual fet","71","10","W3FQJ",63,"Oct 71"
26,"Better sounding SSB","84","02","AG6K",58,"Feb 84"
26,"Better sounding SSB","84","06","Comments W2OZH",13,"Jun 84"
26,"Communications receiver, phasing-type","73","08","WA0JYK",6,"Aug 73"
26,"Converting a-m power amplifiers to ssb service","68","09","WA4GNW",55,"Sep 68"
26,"Converting the Swan 120 to two meters","68","05","K6RIL",8,"May 68"
26,"Detector, ssb, IC (HN)","72","12","K4ODS",67,"Dec 72"
26,"Detector, ssb, IC (HN)","73","04","Correction",72,"Apr 73"
26,"Detectors, ssb","68","11","Belt",22,"Nov 68"
26,"Development of Amateur SSB: a brief history","84","09","K4KJ",12,"Sep 84"
26,"Development of Amateur SSB: a brief history","84","12","Comments, AG4R",8,"Dec 84"
26,"Double-balanced mixers","68","03","W1DTY",48,"Mar 68"
26,"Double-balanced modulator, broadband","70","03","WA6NCT",8,"Mar 70"
26,"Early single-sideband transmitter (ham radio techniques)","81","12","W6SAI",30,"Dec 81"
26,"Electronic bias switching for linear amplifiers","75","03","W6VFR",50,"Mar 75"
26,"Elmer's notebook: power measurements","88","01","W1SL",100,"Jan 88"
26,"Elmer's notebook: SSB basics- generating the signal","88","11","W1SL",117,"Nov 88"
26,"Elmer's notebook: SSB basics- receiving the signal","88","12","W1SL",117,"Dec 88"
26,"Filters, single-sideband","68","08","Belt",40,"Aug 68"
26,"Filters, ssb (HN)","73","11","K6KA",63,"Nov 73"
26,"Frequency dividers for ssb","71","12","W7BZ",24,"Dec 71"
26,"Frequency translation in ssb transmitters","68","09","Belt",22,"Sep 68"
26,"Generating ssb signals with suppressed carriers","68","05","Belt",24,"May 68"
26,"Guide to single sideband, a beginner's","68","03","Belt",66,"Mar 68"
26,"Ham radio techniques","84","10","W6SAI",106,"Oct 84"
26,"Hang agc circuit for sob and CW","72","09","W1ERJ",50,"Sep 72"
26,"Inexpensive SSB for 10 meters","90","06","AD5X",30,"Jun 90"
26,"Intermittent voice operation of power tubes","71","01","W6SAI",24,"Jan 71"
26,"Linear amplifier design: Part 1","79","06","W6SAI",12,"Jun 79"
26,"Linear amplifier design: Part 2","79","07","W6SAI",34,"Jul 79"
26,"Linear amplifier design: Part 3","79","08","W6SAI",58,"Aug 79"
26,"Linear amplifier performance, improving","71","10","W4PSJ",68,"Oct 71"
26,"Linear amplifier, 100-watt","75","12","W6WR",28,"Dec 75"
26,"Linear amplifier, five-band conduction-cooled","72","07","W9KIT",6,"Jul 72"
26,"Linear amplifier, five-band kilowatt","74","01","W4OQ",14,"Jan 74"
26,"Linear amplifier, five-band kilowatt","74","12","lmproved operation (letter)",59,"Dec 74"
26,"Linear amplifier, HF solid-state kilowatt, mobile","85","02","WA7SPR",67,"Feb 85"
26,"Linear amplifier, homebrew five-band","70","03","W7IV",30,"Mar 70"
26,"Linear amplifier, modular, for the high-frequency Amateur bands","81","01","K8RA",12,"Jan 81"
26,"Linear amplifier, modular, for the high-frequency Amateur bands","81","03","Comments K1THP",6,"Mar 81"
26,"Linear for 80-10 meters, high-power","71","04","W6HHN",56,"Apr 71"
26,"Linear for 80-10 meters, high-power","71","12","Short circuit",96,"Dec 71"
26,"Linear power amplifiers","68","04","Belt",16,"Apr 68"
26,"Linear, five-band hf","72","03","W7DI",6,"Mar 72"
26,"Linearity meter for ssb amplifiers","76","06","W4MB",40,"Jun 76"
26,"Linears, three bands with two (HN)","69","11","W4NJF",70,"Nov 69"
26,"lntermodulation-distortion measurements on ssb transmitters","74","09","W6VFR",34,"Sep 74"
26,"Minituner, ssb","70","10","K1BQT",16,"Oct 70"
26,"Modifying the Heath SB-200 amplifier for the new 8873 zero-bias triode","71","01","W6UOV",32,"Jan 71"
26,"Oscillators, ssb","68","06","Belt",26,"Jun 68"
26,"Peak envelope power, how to measure","74","11","W5JJ",32,"Nov 74"
26,"Phase-shift networks, design criteria for","70","06","G3NRW",34,"Jun 70"
26,"Phase-shift ssb generators","68","07","Belt",20,"Jul 68"
26,"Phasing networks (letter)","78","11","W2ESH",6,"Nov 78"
26,"Power supplies for single sideband","69","02","Belt",38,"Feb 69"
26,"Pre-emphasis for asb transmitters","72","02","OH2CD",38,"Feb 72"
26,"Precise tuning with ssb gear","70","10","W0KD",40,"Oct 70"
26,"Rating tubes for linear amplifier service","71","03","W6UOV, W6SAI",50,"Mar 71"
26,"Rf clipper for the Collins S-line","71","08","K6JYO",18,"Aug 71"
26,"Rf clipper for the Collins S-line","71","12","Letter",68,"Dec 71"
26,"Rf speech Processor, sob","73","09","W2MB",18,"Sep 73"
26,"Sideband location (HN)","73","08","K6KA",62,"Aug 73"
26,"Six-meter transverter","68","12","K8DOC, K8TVP",44,"Dec 68"
26,"Solid-state circuits for ssb","69","01","Belt",18,"Jan 69"
26,"Solid-state transmitting converter for 144-MHz ssb","74","02","W6NBI",6,"Feb 74"
26,"Solid-state transmitting converter for 144-MHz ssb","74","12","Short circuit",62,"Dec 74"
26,"Speech clipper, IC","73","02","K6HTM",18,"Feb 73"
26,"Speech clipper, IC","73","10","Added notes (letter)",64,"Oct 73"
26,"Speech clipper, rf, construction","72","12","G6XN",12,"Dec 72"
26,"Speech clippers, rf, performance of","72","11","G6XN",26,"Nov 72"
26,"Speech clippers, rf, performance of","73","08","Added notes",58,"Aug 73"
26,"Speech clippers, rf, performance of","74","09","Added notes",72,"Sep 74"
26,"Speech clipping","69","04","K6KA",24,"Apr 69"
26,"Speech clipping in single-sideband equipment","71","02","K1YZW",22,"Feb 71"
26,"Speech process, logarithmic","70","01","WA3FIY",38,"Jan 70"
26,"Speech processing","68","06","W1DTY",60,"Jun 68"
26,"Speech processing, principles of","75","02","ZL1BN",28,"Feb 75"
26,"Speech processing, principles of","75","05","Added notes",75,"May 75"
26,"Speech processing, principles of","75","11","Added notes",64,"Nov 75"
26,"Speech processor for ssb","70","04","K6PHT",22,"Apr 70"
26,"Speech processor, split-band","79","09","N7WS",12,"Sep 79"
26,"Speech Processor, ssb","71","12","VK9GN",31,"Dec 71"
26,"Speech splatter on single sideband","75","09","W4MB",28,"Sep 75"
26,"Ssb exciter, 5-band","68","03","K1UKX",10,"Mar 68"
26,"Ssb generator, 9-MHz","70","12","W9KIT",6,"Dec 70"
26,"Ssb generator, phasing-type","73","04","W7CMJ",22,"Apr 73"
26,"Ssb generator, phasing-type","73","11","Added comments (letter)",65,"Nov 73"
26,"Ssb phasing techniques, review","78","01","VK2ZTB",52,"Jan 78"
26,"Ssb phasing techniques, review","79","02","Short circuit",94,"Feb 79"
26,"Ssb phasing techniques, review (letter)","78","08","WB9YEM",82,"Aug 78"
26,"Ssb transceiver, IC, for 80 meters","76","04","VE3GSD",48,"Apr 76"
26,"Switching and linear amplification","71","10","W3FQJ",61,"Oct 71"
26,"Syllabic vox system for Drake equipment","76","08","W6RM",24,"Aug 76"
26,"Transceiver, 3.5-MHz ssb","73","03","VE6ABX",6,"Mar 73"
26,"Transceiver, high-frequency with digital readout","78","03","DJ2LR",12,"Mar 78"
26,"Transceiver, miniature 7-MHz","74","07","W7BBX",16,"Jul 74"
26,"Transceiver, single-band ssb","69","06","W1DTY",8,"Jun 69"
26,"Transceiver, ssb, IC","74","08","G3ZVC",34,"Aug 74"
26,"Transceiver, ssb, IC","75","09","Circuit change (letter)",62,"Sep 75"
26,"Transceiver, ssb, using LM373 IC","73","11","W5BAA",32,"Nov 73"
26,"Transmitter alignment","69","10","Allen",62,"Oct 69"
26,"Transmitter and receiver for 40 meters, ssb","74","03","VE3GSD",6,"Mar 74"
26,"Transmitter and receiver for 40 meters, ssb","74","12","Short circuit",62,"Dec 74"
26,"Transmitter, phasing-type ssb","75","06","WA0JYK",8,"Jun 75"
26,"Transmitting mixers, 6 and 2 meters","69","04","K2ISP",8,"Apr 69"
26,"Transverter, low-power, high-frequency","78","12","W0RBR",12,"Dec 78"
26,"Trapezoidal monitor scope","69","12","VE3CUS",22,"Dec 69"
26,"TTL ICs, using in ssb equipment","75","11","G4ADJ",18,"Nov 75"
26,"Tuning up ssb transmitters","69","11","Allen",62,"Nov 69"
26,"TV sweep tubes in linear service, full-blast operation of","68","04","W6SAI, W6UOV",9,"Apr 68"
26,"Two-tone oscillator for ssb testing","72","04","W6GXN",11,"Apr 72"
26,"Vacuum tubes, using odd-ball types in linear amplifier service","72","09","W5JJ",58,"Sep 72"
26,"Vhf, uhf transverter, input source for (HN)","70","09","F8MK",69,"Sep 70"
26,"Vox and mox systems for ssb","68","10","Belt",24,"Oct 68"
26,"Vox, versatile","71","07","W9KIT",50,"Jul 71"
26,"Vox, versatile","71","12","Short circuit",96,"Dec 71"
26,"Weaver modulation, 2-meter transmitter","85","07","N1COX",12,"Jul 85"
27,"Artificial Intelligence Application in Amateur Radio","89","10","NULN",30,"Oct 89"
27,"BASIC program analyzes simple ladder networks","87","08","W3NQN",32,"Aug 87"
27,"BASIC program analyzes simple ladder networks","87","10","Short circuit",97,"Oct 87"
27,"Design a no-tune amplifier with your personal computer","87","09","W7DHD",8,"Sep 87"
27,"Design program for the grounded-grid 3-500Z","88","06","W7DHD",8,"Jun 88"
27,"EME link calculator program","86","02","KE6ZE",70,"Feb 86"
27,"EME link calculator program","86","04","Comments, KC8OH",9,"Apr 86"
27,"Get on SSTV - with the C-64","86","10","I2CAB, I2AED, ed. K9EI",43,"Oct 86"
27,"Great circle computations using LOTUS 1-2-3","88","09","AD1B",31,"Sep 88"
27,"Ham Radio Techniques: The MN analysis program, (that was then, this is now)","90","02","W6SAI",34,"Feb 90"
27,"L-band ground wave propagation program","86","01","WA9GRF and Joseph R. Hennel",103,"Jan 86"
27,"Morse code teaching tools for the C-64 and 128","88","01","KB8CS",35,"Jan 88"
27,"Pathfinder-part 2","88","10","K3FR",47,"Oct 88"
27,"Pathfinder: improved MINIMUF program","88","05","K3FR",26,"May 88"
27,"PV-4 on Your Commodore","89","10","WA3EKL",64,"Oct 89"
27,"PV-4 on Your Commodore","90","01","Short circuit",64,"Jan 90"
27,"T158/TI59 (HN)","82","03","K3VGX",65,"Mar 82"
27,"Using macros with packet","88","10","AD1B",82,"Oct 88"
27,"Using spreadsheet programs for amateur radio projects","86","12","AD1B",95,"Dec 86"
28,"50 years of television","76","02","W1DTY, K4TWJ",36,"Feb 76"
28,"50 years of television","76","09","Letter, WA6JFP",77,"Sep 76"
28,"A tour through an NTSC TV station - part 1 (historical aspects)","87","12","KL7AJ",57,"Dec 87"
28,"Broadcast quality television camera","78","01","WA8RMC",10,"Jan 78"
28,"Callsign generator","77","02","WB2CPA",34,"Feb 77"
28,"Camera and monitor, sstv","69","04","VE3EGO, Watson",38,"Apr 69"
28,"Caption device for SSTV","77","07","G3LTZ",61,"Jul 77"
28,"Clean ATV the Modern Way","89","01","WA1IAO",32,"Jan 89"
28,"Color tv, slow-scan","69","12","W4UMF, WB8DQT",59,"Dec 69"
28,"Computer, processing, sstv pictures","70","07","W4UMF",30,"Jul 70"
28,"Console, video, for ATV","80","01","WB8LGA",12,"Jan 80"
28,"CRT character enhancer","82","08","W9CGI",66,"Aug 82"
28,"Display SSTV pictures on a fast-scan TV","79","07","K6AEP",12,"Jul 79"
28,"Fast- to slow-scan conversion, tv","71","07","W3EFG, W3YZC",32,"Jul 71"
28,"Fast-scan camera converter for sstv","74","07","WA9UHV",22,"Jul 74"
28,"Frequency-selective and sensitivity-controlled sstv preamp","75","11","DK1BF",36,"Nov 75"
28,"Get on SSTV - with the C-64","86","10","K9EI",43,"Oct 86"
28,"Get on SSTV - with the C-64","87","10","Short circuit",97,"Oct 87"
28,"Helium Balloon ATV Launched Over Indiana","89","06","WB8ELK",72,"Jun 89"
28,"Interlaced sync generator for ATV camera control","77","09","WA8RMC",10,"Sep 77"
28,"Medium-scan television","81","12","W9NTP",54,"Dec 81"
28,"Remarks on television series (comment)","88","05","KB9F0",6,"May 88"
28,"Slow-scan television","69","12","WA2EMC",52,"Dec 69"
28,"Slow-to-fast-scan television converters, an introduction","76","08","K4TWJ",44,"Aug 76"
28,"SSTV, applying microcomputers to","82","06","G3ZCZ/4X",20,"Jun 82"
28,"Sync generator for black-and-white 525-line TV","77","07","K4EEU",79,"Jul 77"
28,"Sync generator, IC, for ATV","75","07","W0KGI",34,"Jul 75"
28,"Sync generator, sstv (letter)","73","04","W1IA",73,"Apr 73"
28,"Technology of commercial television- part 2: hardware","88","01","KL7AJ",54,"Jan 88"
28,"Television DX","73","08","WA9RAQ",30,"Aug 73"
28,"Test generator, sstv","73","07","K4EEU",6,"Jul 73"
28,"Vestigial sideband microtransmitter for amateur television","76","02","WA6UAM",20,"Feb 76"
28,"Vestigial sideband microtransmitter for amateur television","77","05","Short circuit",94,"May 77"
29.1,"40-meter transmitter-receiver","82","12","W6XM",43,"Dec 82"
29.1,"5CX1500 screen protection (HN)","83","03","VE3AIA",58,"Mar 83"
29.1,"6-meter amplifier","83","04","W2GN",72,"Apr 83"
29.1,"6-meter amplifier","83","08","Short circuit",97,"Aug 83"
29.1,"A-M/fm converter for facsimile transmission, an","81","12","SM6FJB",12,"Dec 81"
29.1,"Adjusting SSB amplifiers","85","09","AG6K",33,"Sep 85"
29.1,"Amplitude modulation, a different approach","70","02","WA5SNZ",50,"Feb 70"
29.1,"Aural vco provides relative metering","87","01","K1ZJH",97,"Jan 87"
29.1,"Batteries, how to select for portable equipment","73","08","WA0AIK",40,"Aug 73"
29.1,"Blower maintenance (HN)","71","02","W6NIF",71,"Feb 71"
29.1,"Blower-to-chassis adapter (HN)","71","02","K6JYO",73,"Feb 71"
29.1,"Collector Matching Networks","89","01","KZJ",34,"Jan 89"
29.1,"Converting a-m power amplifiers to ssb service","68","09","WA4GNW",55,"Sep 68"
29.1,"CQer, automatic, for RTTY","80","11","W4AYV",18,"Nov 80"
29.1,"Design a no-tune amplifier with your personal computer","87","09","W7DHD",8,"Sep 87"
29.1,"Digital readout, universal","78","12","WB8IFM",34,"Dec 78"
29.1,"Digital vfo basics","78","11","Earnshaw",18,"Nov 78"
29.1,"Efficiency of linear power amplifiers, how to compare","73","07","W5JJ",64,"Jul 73"
29.1,"Eimac 5CX1500A power pentode, notes on","80","08","K9XI",60,"Aug 80"
29.1,"Electronic bias switching for linear amplifiers","75","03","W6VFR",50,"Mar 75"
29.1,"Fail-safe timer, transmitter (HN)","74","10","K9HVW",72,"Oct 74"
29.1,"Filter converter, an up/down","77","12","W5DA",20,"Dec 77"
29.1,"Filters, ssb (HN)","73","11","K6KA",63,"Nov 73"
29.1,"Frequency multipliers","71","08","W6GXN",6,"Aug 71"
29.1,"Frequency translation in ssb transmitters","68","09","Belt",22,"Sep 68"
29.1,"Grid-current measurement in grounded-grid amplifiers","68","08","W6SAI",64,"Aug 68"
29.1,"Grounded-grid amplifier parasitics","86","04","AG6K",31,"Apr 86"
29.1,"Grounded-grid amplifier parasitics","86","07","Comment, NJ0G",9,"Jul 86"
29.1,"Grounded-grid amplifier parasitics","86","07","Comment, W2YW",6,"Jul 86"
29.1,"Ham radio techniques: "white noise" revisited","87","10","W6SAI",79,"Oct 87"
29.1,"Ham radio techniques: "white noise" technology bites back","87","01","W6SAI",55,"Jan 87"
29.1,"Ham radio techniques: super cathode driven amplifier","86","11","W6SAI",73,"Nov 86"
29.1,"High-voltage fuses in linear amplifiers (HN)","78","02","K9MM",76,"Feb 78"
29.1,"Homebrew Neutralizing Capacitor","89","05","N4LC",38,"May 89"
29.1,"Intermittent voice operation of power tubes","71","01","W6SAI",24,"Jan 71"
29.1,"Key and vox clicks (HN)","72","08","K6KA",74,"Aug 72"
29.1,"Linear power amplifiers","68","04","Belt",16,"Apr 68"
29.1,"Linear power amplifiers (letter)","79","12","KB5EY, W6SAI",6,"Dec 79"
29.1,"Linear Tuning with a War Surplus Capacitor","89","06","N2DCH",40,"Jun 89"
29.1,"Lowpass filters for solid-state linear amplifiers","74","03","WA0JYK",38,"Mar 74"
29.1,"Lowpass filters for solid-state linear amplifiers","74","12","Short circuit",62,"Dec 74"
29.1,"Lowpass filters, elliptic, for transistor amplifiers","81","01","W3NQN",20,"Jan 81"
29.1,"Matching techniques, broadband, for transistor rf amplifiers","77","01","WA7WHZ",30,"Jan 77"
29.1,"MC1496, improved carrier suppression (HN)","85","04","K1ZJH",78,"Apr 85"
29.1,"MC1496, improved carrier suppression (HN)","85","07","Short circuit",74,"Jul 85"
29.1,"MMIC multiplier chains for the 902 MHz band","87","02","N6JH",72,"Feb 87"
29.1,"MMIC multiplier chains for the 902 MHz band","87","05","Short circuit",64,"May 87"
29.1,"Multiple tubes in parallel grounding grid (HN)","71","08","W7CSD",60,"Aug 71"
29.1,"National NCX-500 modification for 15 meters (HN)","77","10","WA1KYO",87,"Oct 77"
29.1,"Networks, transmitter matching","73","01","W6FFC",6,"Jan 73"
29.1,"Neutralizing tip (HN)","72","12","ZE6JP",69,"Dec 72"
29.1,"Parasitic oscillations in high-power transistor rf amplifiers","70","09","W0KGI",54,"Sep 70"
29.1,"Parasitic suppressor (HN)","70","04","WA9JMY",80,"Apr 70"
29.1,"Pi and pi-L networks","68","11","W6SAI",36,"Nov 68"
29.1,"Pi network design","78","03","Anderson, Leonard H.",36,"Mar 78"
29.1,"Pi network design","79","04","Comments",6,"Apr 79"
29.1,"Pi network design aid","74","05","W6NIF",62,"May 74"
29.1,"Pi network design aid","74","12","Correction (letter)",58,"Dec 74"
29.1,"Pi networks (letter)","78","10","W6NIF",6,"Oct 78"
29.1,"Pi networks, series tuned","71","10","W2EGH",42,"Oct 71"
29.1,"Pi-network design, high-frequency power amplifier","72","09","W6FFC",6,"Sep 72"
29.1,"Pi-network inductors (letter)","72","12","W7IV",78,"Dec 72"
29.1,"Pi-network rf choke (HN)","78","06","W6KNE",98,"Jun 78"
29.1,"Power attenuator, all-band 10-dB","70","04","K1CCL",68,"Apr 70"
29.1,"Power fets","71","04","W3FQJ",34,"Apr 71"
29.1,"Power tube open filament pins (HN)","75","04","W9KNI",69,"Apr 75"
29.1,"Practically speaking: noise, signals and amplifiers","88","02","K4IPV",77,"Feb 88"
29.1,"Practically Speaking: Parts for Antenna Tuners and Linears Plus a Correction","89","01","K4IPV",83,"Jan 89"
29.1,"Pre-emphasis for ssb transmitters","72","02","OH2CD",38,"Feb 72"
29.1,"QSK Modification for the Trio-Kenwood TL-922 Amplifier","89","03","AG6K",35,"Mar 89"
29.1,"Quartz crystals (letter)","79","12","WB2EGV",12,"Dec 79"
29.1,"Relay activator (HN)","71","09","K6KA",62,"Sep 71"
29.1,"Rf leakage from your transmitter, preventing","78","06","K9MM",44,"Jun 78"
29.1,"Rf power amplifiers, high-efficiency","74","10","WB8LQK",8,"Oct 74"
29.1,"Rf power transistors, how to use","70","01","WA7KRE",8,"Jan 70"
29.1,"RF switching, high power with pin diodes","85","01","KN8Z",82,"Jan 85"
29.1,"Screen clamp, solid-state","68","09","W0LRW",44,"Sep 68"
29.1,"Single-conversion transceivers, digital frequency display for","81","03","K6YHK",28,"Mar 81"
29.1,"Sstv reporting system","76","09","WB6ZYE",78,"Sep 76"
29.1,"Step-start circuit, high-voltage (HN)","71","09","W6VFR",64,"Sep 71"
29.1,"Swr alarm circuits","70","04","W2EEY",73,"Apr 70"
29.1,"Talking clock (letter)","80","02","N9KV",75,"Feb 80"
29.1,"Talking digital readout (letter)","80","05","N5AF",6,"May 80"
29.1,"Temperature alarms for high-power amplifiers","70","07","W2EEY",48,"Jul 70"
29.1,"Three-tube 4CX250B linear amplifier","87","04","YU1AW",63,"Apr 87"
29.1,"Transmitter power levels, some observations regarding","71","04","WA5SNZ",62,"Apr 71"
29.1,"Transmitter switching, solid-state","68","06","W2EEY",44,"Jun 68"
29.1,"Transmitter, remote keying (HN)","69","10","WA3HDU",74,"Oct 69"
29.1,"Transmitter-tuning unit for the blind","71","06","W9NTP",60,"Jun 71"
29.1,"True frequency digital readout for the HW-101","87","01","NU4F",8,"Jan 87"
29.1,"True frequency digital readout for the HW-101","87","08","Short circuit",41,"Aug 87"
29.1,"TV sweep tubes in linear service, full-blast operation of","68","04","W6SAI, W6UOV",9,"Apr 68"
29.1,"Two-Loop 10-Hz Step 40-70 MHz Synthesizer","89","01","PY1LL & C Mathias",24,"Jan 89"
29.1,"Vacuum tubes, using odd-ball types in linear amplifiers","72","09","W5JJ",58,"Sep 72"
29.1,"Vfo, digital readout","73","01","WB8IFM",14,"Jan 73"
29.1,"VMOS on 1750 meters","83","10","K1RGO",71,"Oct 83"
29.1,"XK2C AFSK generator, the","80","11","W3HVK",58,"Nov 80"
29.2,"14-MHz vfo transmitter, solid-state","73","11","W3QBO",6,"Nov 73"
29.2,"15-meter sideband transceiver","83","03","WA4ZXF",12,"Mar 83"
29.2,"15-meter sideband transceiver","83","07","Short circuit",80,"Jul 83"
29.2,"15-meter sideband transceiver","86","01","Short circuit",66,"Jan 86"
29.2,"160-meters, 500-watt power amplifier","75","08","W2BP",8,"Aug 75"
29.2,"28-MHz transmitter, solid-state","68","07","K2ZSQ",10,"Jul 68"
29.2,"3-400Z, 3-500Z filament circuits, notes on","76","04","K9WEH",66,"Apr 76"
29.2,"3-500Z in amateur service, the","68","03","W6SAI",56,"Mar 68"
29.2,"40-meters, transistor rig for","68","07","W6BLZ, K5GXR",44,"Jul 68"
29.2,"7-MHz QRP CW transmitter","76","12","WA4MTH",26,"Dec 76"
29.2,"80/40-meter junkbox rig revisited (HN)","90","01","W3RMD",70,"Jan 90"
29.2,"Air pressure, measuring across transmitting tubes (HN)","80","01","W4PSJ",89,"Jan 80"
29.2,"ALC circuits, an analysis of","81","08","K4JW",19,"Aug 81"
29.2,"Amplifier, 3CX1200A7 10 to 80 meter","85","08","K8RA",75,"Aug 85"
29.2,"An NE602-based QRP Transceiver for 20-meter CW","89","01","K1BQT",9,"Jan 89"
29.2,"ART-13, Modifying for noiseless CW (HN)","69","08","K5GKN",68,"Aug 69"
29.2,"Better frequency stability for the Drake TR7","87","08","HB9ABO",21,"Aug 87"
29.2,"Card File Station for 40 Meters, The Weekender","89","09","W6XM",56,"Sep 89"
29.2,"CAT control system for the Yaesu FT-757GX","87","11","SM6CPI",26,"Nov 87"
29.2,"CB to 10 fm transceiver conversion","83","02","VE3FIT, VE3AQN",16,"Feb 83"
29.2,"Compact 75-meter monoband transceiver","85","11","K1BQT",13,"Nov 85"
29.2,"Convert a $25 CB HT for 6 meters","87","08","K1ZJH",79,"Aug 87"
29.2,"CW transceiver for 40 and 80 meters","69","07","W3NNL, K3OIO",14,"Jul 69"
29.2,"CW transceiver for 40 and 80 meters, improved","77","07","W3NNL",18,"Jul 77"
29.2,"CW transceiver, low-power 20-meter","74","11","W7ZOI",8,"Nov 74"
29.2,"CW transmitter, half-watt","69","11","K0VQY",69,"Nov 69"
29.2,"Design an amplifier around the 3CX1200A7","87","12","W7DHD",33,"Dec 87"
29.2,"Driver and final for 40 and 80 meters, solid-state","72","02","W3QBO",20,"Feb 72"
29.2,"Electronic bias switch for negatively-biased power amplifiers","76","11","WA5KPG",27,"Nov 76"
29.2,"Field-effect transistor transmitters","71","02","K2BLA",30,"Feb 71"
29.2,"Filters, low-pass for 10 and 15 meters","72","01","W2EEY",42,"Jan 72"
29.2,"Five-band Junkbox Transmitter","89","12","W3RMD",42,"Dec 89"
29.2,"Five-band transmitter, hf, solid-state","77","04","I5TDJ",24,"Apr 77"
29.2,"Frequency synthesizer, high frequency","72","10","K2BLA",16,"Oct 72"
29.2,"Grounded-grid 2 kW PEP amplifier, high frequency","69","02","W6SAI",6,"Feb 69"
29.2,"Ham notebook: curing FT-1012D key clicks","88","02","N5RM",74,"Feb 88"
29.2,"Ham radio techniques: 160-meter equipment","87","03","W6SAI",77,"Mar 87"
29.2,"Heath HW-101 transceiver, using with a separate receiver (HN)","73","10","WA1MKP",63,"Oct 73"
29.2,"High dynamic range mixing with the Si8901","88","03","KB7QJ",11,"Mar 88"
29.2,"Improved stability and dial calibration for the Heathkit HW-8 (HN)","83","11","W3HVK",103,"Nov 83"
29.2,"Kilowatt mobile for DX","80","12","K5DUT",43,"Dec 80"
29.2,"Linear amplifier design: Part 1","79","06","W6SAI",12,"Jun 79"
29.2,"Linear amplifier design: Part 2","79","07","W6SAI",34,"Jul 79"
29.2,"Linear amplifier design: Part 3","79","08","W6SAI",58,"Aug 79"
29.2,"Linear amplifier performance, improving","71","10","W4PSJ",68,"Oct 71"
29.2,"Linear amplifier, 100-watt","75","12","W6WR",28,"Dec 75"
29.2,"Linear amplifier, five-band","70","03","W7IV",30,"Mar 70"
29.2,"Linear amplifier, five-band conduction-cooled","72","07","W9KIT",6,"Jul 72"
29.2,"Linear amplifier, HF solid-state kilowatt, mobile","85","02","WA7SPR",67,"Feb 85"
29.2,"Linear amplifier, modular, for the high-frequency Amateur bands","81","01","K8RA",12,"Jan 81"
29.2,"Linear amplifier, modular, for the high-frequency Amateur bands","81","03","Comments K1THP",6,"Mar 81"
29.2,"Linear amplifiers, modifying for full break-in operation","78","04","K4XU",38,"Apr 78"
29.2,"Linear for 80-10 meters, high-power","71","04","W6HHN",56,"Apr 71"
29.2,"Linear for 80-10 meters, high-power","71","12","Short circuit",96,"Dec 71"
29.2,"Linear power amplifier, high-power solid-state","74","08","Chambers",6,"Aug 74"
29.2,"Linear, five-band hf","72","03","W7DI",6,"Mar 72"
29.2,"Linear, five-band kilowatt","74","01","W4OQ",14,"Jan 74"
29.2,"Linear, five-band kilowatt","74","12","Improved operation (letter)",59,"Dec 74"
29.2,"Linear-amplifier cost efficiency","80","07","W8MFL",60,"Jul 80"
29.2,"Linears, three bands with two (HN)","69","11","W4NJF",70,"Nov 69"
29.2,"Low-frequency transmitter, solid-state","68","11","W4KAE",16,"Nov 68"
29.2,"Lowpass filter, high-frequency","75","03","W2OLU",24,"Mar 75"
29.2,"Lowpass filter, high-frequency","75","06","Short circuit",59,"Jun 75"
29.2,"Lowpass filters, elliptic, for transistor amplifiers","81","01","W3NQN",20,"Jan 81"
29.2,"Modifying the Heath SB-200 amplifier for the new 8873 zero-bias triode","71","01","W6UOV",32,"Jan 71"
29.2,"Mosfet power amplifier, for 160 - 6 meters","78","11","WA1WLW",12,"Nov 78"
29.2,"Phase-locked loop, 28 MHz","73","01","W1KNI",40,"Jan 73"
29.2,"QRP fet transmitter, 80-meter","75","08","W3FQJ",50,"Aug 75"
29.2,"Remote control hf operation","83","04","K5QY",32,"Apr 83"
29.2,"Remote control hf operation","83","08","Short circuit",97,"Aug 83"
29.2,"Ssb exciter, 5-band","68","03","K1UKX",10,"Mar 68"
29.2,"Ssb transceiver using LM373 IC","73","11","W5BAA",32,"Nov 73"
29.2,"Ssb transceiver, 9-MHz, IC","74","08","G3ZVC",34,"Aug 74"
29.2,"Ssb transceiver, 9-MHz, IC","75","09","Circuit change (letter)",62,"Sep 75"
29.2,"Ssb transceiver, miniature 7-MHz","74","07","W7BBX",16,"Jul 74"
29.2,"Ssb transmitter and receiver, 40 meters","74","03","VE3GSD",6,"Mar 74"
29.2,"Ssb transmitter and receiver, 40 meters","74","12","Short circuit",62,"Dec 74"
29.2,"Ssb transmitter, phasing type","75","06","WA0JYK",8,"Jun 75"
29.2,"Tank circuit, inductively-tuned high-frequency","70","07","W6SAI",6,"Jul 70"
29.2,"Thumbwheel frequency selector for the Yaesu FT-757GX","87","11","KA9SNF",33,"Nov 87"
29.2,"Transceiver, 3.5-MHz ssb","73","03","VE6ABX",6,"Mar 73"
29.2,"Transceiver, high-frequency with digital readout","78","03","DJ2LR",12,"Mar 78"
29.2,"Transceiver, single-band ssb","69","06","W1DTY",8,"Jun 69"
29.2,"Transmitter, five-band, CW and ssb","77","01","WN3WTG",34,"Jan 77"
29.2,"Transmitter, low-power","70","12","W6NIF",26,"Dec 70"
29.2,"Transmitter, universal flea-power","69","04","K2ZSQ",58,"Apr 69"
29.2,"Transmitters, QRP","68","12","W7OE",36,"Dec 68"
29.2,"Transverter, high-level hf","68","07","K4ERO",68,"Jul 68"
29.2,"Transverter, low-power, high-frequency","78","12","WA0RBR",12,"Dec 78"
29.2,"TS-440 interface for keying linears with high voltage biasing (HN)","88","11","W6VVTU",98,"Nov 88"
29.2,"Vacuum tube amplifier, design a toroidal tank circuit for","85","08","W6YUY",29,"Aug 85"
29.2,"Wideband linear amplifier, 4 watt","76","01","VE5FP",42,"Jan 76"
29.3,"10-GHz transceiver for amateur microwave communications","78","08","DJ7OO",10,"Aug 78"
29.3,"1296-MHz frequency tripler","69","09","K4SUM, W4API",40,"Sep 69"
29.3,"1296-MHz power amplifier","70","03","W2COH, W2CCY, W2OJ, W1MU",43,"Mar 70"
29.3,"1296-MHz transverter","77","07","K6ZMW",10,"Jul 77"
29.3,"144-and 432- stripling amplifieritripler","70","02","K2RIW",6,"Feb 70"
29.3,"144-MHz fm transmitter","72","04","W9SEK",6,"Apr 72"
29.3,"144-MHz fm transmitter, solid-state","71","07","W6AJF",14,"Jul 71"
29.3,"144-MHz fm transmitter, Sonobaby","71","10","WA0UZO",8,"Oct 71"
29.3,"144-MHz fm transmitter, Sonobaby","71","12","Short circuit",96,"Dec 71"
29.3,"144-MHz fm transmitter, Sonobaby","72","10","Crystal deck for",26,"Oct 72"
29.3,"144-MHz low-drive kilowatt linear","70","07","W6HHN",26,"Jul 70"
29.3,"144-MHz low-power solid-state transmitter","70","03","K0VQY",52,"Mar 70"
29.3,"144-MHz phase-modulated transmitter","70","02","W6AJF",18,"Feb 70"
29.3,"144-MHz power amplifier, 10-watt solid-state","74","01","W1DTY",67,"Jan 74"
29.3,"144-MHz power amplifier, high-performance","71","08","W6UOV",22,"Aug 71"
29.3,"144-MHz power amplifiers, solid state","73","04","W4CGC",6,"Apr 73"
29.3,"144-MHz transceiver, a-m","71","12","K1AOB",55,"Dec 71"
29.3,"144-MHz transmitting converter, solid-state ssb","74","02","W6NBI",6,"Feb 74"
29.3,"144-MHz transmitting converter, solid-state ssb","74","12","Short circuit",62,"Dec 74"
29.3,"144-MHz two-kilowatt linear","70","04","W6OUV, W6ZO, K6DC",26,"Apr 70"
29.3,"220-MHz exciter","71","11","WB6DJV",50,"Nov 71"
29.3,"220-MHz kilowatt linear","80","06","W6PO",12,"Jun 80"
29.3,"220-MHz power amplifier","71","12","W6UOV",44,"Dec 71"
29.3,"220-MHz rf power amplifier, vhf fm","73","09","K7JUE",6,"Sep 73"
29.3,"220-MHz, rf power amplifier for","71","01","WB6DJV",44,"Jan 71"
29.3,"2304-MHz power amplifier","75","02","WA9HUV",8,"Feb 75"
29.3,"30-MHz preamplifier, low-noise","78","10","W1HR",38,"Oct 78"
29.3,"432-MHz 100-watt solid-state power amplifier","75","09","WA7CNP",36,"Sep 75"
29.3,"432-MHz amplifier, 2-kW","68","09","W6DAI, W6NLZ",6,"Sep 68"
29.3,"432-MHz exciter, solid-state","69","10","W1OOP",38,"Oct 69"
29.3,"432-MHz rf power amplifier","70","04","K6JC",40,"Apr 70"
29.3,"432-MHz solid-state linear amplifier","75","08","WB6QXF",30,"Aug 75"
29.3,"432-MHz ssb converter","70","01","K6JC",48,"Jan 70"
29.3,"432-MHz ssb converter","70","06","Short circuit",79,"Jun 70"
29.3,"50-MHz kilowatt, inductively tuned","75","09","K1DPP",8,"Sep 75"
29.3,"50-MHz linear amplifier","71","11","K1RAK",38,"Nov 71"
29.3,"50-MHz linear amplifier, 2-kW","71","02","W6UOV",16,"Feb 71"
29.3,"50-MHz linear, inductively tuned","70","07","W6SAI",6,"Jul 70"
29.3,"50-MHz transmitter, solid-state","68","10","WB2EGZ",6,"Oct 68"
29.3,"50-MHz transverter","71","03","K1RAK",12,"Mar 71"
29.3,"50/144-MHz multimode transmitter","70","09","K2ISP",28,"Sep 70"
29.3,"Converter, dc-dc, increases Gunnplexer frequency swing (HN)","80","04","W1XZ",70,"Apr 80"
29.3,"Converting the Swan 120 to two meters","68","05","K6RIL",8,"May 68"
29.3,"Fm repeater transmitter, improving","69","10","W6GDO",24,"Oct 69"
29.3,"Linear for 1296 MHz, high-power","68","08","WB6IOM",8,"Aug 68"
29.3,"Linear for 2 meters","69","01","W4KAE",47,"Jan 69"
29.3,"Phase-locked loop, 50 MHz","73","01","W1KNI",40,"Jan 73"
29.3,"Synthesized 2-meter mobile stations, automation for","80","06","W9CGI",20,"Jun 80"
29.3,"Transistors for vhf transmitters (HN)","69","09","W1OOP",74,"Sep 69"
29.3,"Transmitter, flea power","68","12","K2ZSQ",80,"Dec 68"
29.3,"Transmitter, flea power","69","04","K2ZSQ",58,"Apr 69"
29.3,"Transmitting mixers for 6 and 2 meters","69","04","K2ISP",8,"Apr 69"
29.3,"Transverter for 6 meters","69","07","WA9IGU",44,"Jul 69"
29.3,"Tunnel diode phone rig, 6-meter (HN)","68","07","K2ZSQ",74,"Jul 68"
29.3,"Vhf linear, 2kW, design data for","69","03","W6UOV",6,"Mar 69"
29.4,"Aligning vhf transmitters","68","09","Allen",58,"Sep 68"
29.4,"Six-meter transverter","68","12","K8DOC, K8TVP",44,"Dec 68"
29.4,"Ssb transmitter alignment","69","10","Allen",62,"Oct 69"
29.4,"Tuning up ssb transmitters","69","11","Allen",62,"Nov 69"
30,"Analyzing wrong dc voitages","69","02","Allen",54,"Feb 69"
30,"Audio distortion, curing in speech amplifiers","70","08","Allen",42,"Aug 70"
30,"Basic troubleshooting","76","01","James",54,"Jan 76"
30,"Dc-dc converters, curing trouble in","70","06","Allen",56,"Jun 70"
30,"GLA-1000 amplifier, stop blowing finals","85","08","G4CFY, G3ROG",59,"Aug 85"
30,"Grounded-grid amplifier parasitics","86","04","AG6K",31,"Apr 86"
30,"Grounded-grid amplifier parasitics","86","07","Comment, NJ0G",9,"Jul 86"
30,"Grounded-grid amplifier parasitics","86","07","Comment, W2YW",6,"Jul 86"
30,"I-f transformers, problems and cures - Weekender","79","03","K4IPV",56,"Mar 79"
30,"Logic circuits, troubleshooting","77","02","W8GRG",56,"Feb 77"
30,"Mobile power supplies, troubleshooting","70","06","Allen",56,"Jun 70"
30,"Ohmmeter troubleshooting","69","01","Allen",52,"Jan 69"
30,"Oscillator troubleshooting (repair bench)","77","03","K4IPV",54,"Mar 77"
30,"Oscillators, repairing","70","03","Allen",69,"Mar 70"
30,"Oscilloscope, putting to work","69","09","Allen",64,"Sep 69"
30,"Oscilloscope, troubleshooting amateur gear with","69","08","Allen",52,"Aug 69"
30,"Power supply, troubleshooting","77","09","K4IPV",78,"Sep 77"
30,"Practically speaking","86","01","K4IPV",59,"Jan 86"
30,"Practically speaking","86","02","K4IPV",35,"Feb 86"
30,"Practically speaking: coax velocity factor","86","11","K4IPV",78,"Nov 86"
30,"Practically speaking: using the multimeter","86","07","K4IPV",43,"Jul 86"
30,"Practically speaking: using the right multimeter","86","06","K4IPV",95,"Jun 86"
30,"Receiver alignment techniques, vhf fm","75","08","K4IPV",14,"Aug 75"
30,"Receivers, troubleshooting the dead","76","06","K4IPV",56,"Jun 76"
30,"Resistance measurement, troubleshooting by","76","04","James",58,"Apr 76"
30,"Rf and i-f amplifiers, troubleshooting","70","09","Allen",60,"Sep 70"
30,"Speech amplifiers, curing distortion","70","08","Allen",42,"Aug 70"
30,"Ssb transmitter alignment","69","10","Allen",62,"Oct 69"
30,"Sweep generator, how to use","70","04","Allen",60,"Apr 70"
30,"Transistor circuits, troubleshooting","76","09","K4IPV",60,"Sep 76"
30,"Transistor testing","70","07","Allen",62,"Jul 70"
30,"Tuning up ssb transmitters","69","11","Allen",62,"Nov 69"
30,"TVI problem, solving a difficult (HN)","85","09","W2YW",152,"Sep 85"
30,"Voltage troubleshooting","76","02","James",64,"Feb 76"
31.1,"10-GHz cross-guide coupler","79","10","WB2ZKW",66,"Oct 79"
31.1,"10-GHz Gunnplexer transceivers, construction and practice","79","01","Feature",26,"Jan 79"
31.1,"10-GHz Gunnplexer transceivers, construction and practice","79","09","Comments, W6OAL",6,"Sep 79"
31.1,"10-GHz oscillator, ultra stable","83","06","K8UR",57,"Jun 83"
31.1,"1296-MHz double-stub tuner","78","12","K6LK",70,"Dec 78"
31.1,"1296-MHz microstrip filter, improved grounding for","78","08","N6TX",60,"Aug 78"
31.1,"1296-MHz microstripline bandpass filters","75","12","WA6UAM",46,"Dec 75"
31.1,"144-MHz fm frequency meter","71","01","W4JAZ",40,"Jan 71"
31.1,"144-MHz fm frequency meter","71","04","Short circuit",72,"Apr 71"
31.1,"144-MHz frequency synthesizer","73","07","WB4FPK",34,"Jul 73"
31.1,"144-MHz frequency synthesizer, CMOS","80","04","Short circuit",81,"Apr 80"
31.1,"144-MHz frequency-synthesizer, one-crystal","73","09","W0KMV",30,"Sep 73"
31.1,"2.3GHz prescaler","87","01","N6JH",21,"Jan 87"
31.1,"220-MHz frequency synthesizer","74","12","W6GXN",8,"Dec 74"
31.1,"2304-MHz stripline bandpass filter","77","04","WA4WDL, WB4LJM",50,"Apr 77"
31.1,"40-GHz record","68","12","K7PMY",70,"Dec 68"
31.1,"40-meter transmitter-receiver","82","12","W6XM",43,"Dec 82"
31.1,"432-MHz ssb, practical approach to","71","06","WA2FSQ",6,"Jun 71"
31.1,"440-MHz bandpass filter","79","11","WA8YBT",62,"Nov 79"
31.1,"50-MHz bandpass filter","76","08","W4EKO",70,"Aug 76"
31.1,"50-MHz frequency synthesizer","74","03","W1KNI",26,"Mar 74"
31.1,"50-MHz RF Bridge","89","07","G8CJM",53,"Jul 89"
31.1,"A-m modulation monitor (HN)","71","07","K7UNL",67,"Jul 71"
31.1,"AF transmission cable, microwave applications","85","05","K3HW",106,"May 85"
31.1,"Amateur vhf fm operation","68","06","W6AYZ",36,"Jun 68"
31.1,"APX-6 transponder, notes on","68","04","W6OSA",32,"Apr 68"
31.1,"Artificial radio aurora, vhf scattering characteristics","74","11","WB6KAP",18,"Nov 74"
31.1,"ATV power amplifier, fast-scan","85","03","WB0ZJP",67,"Mar 85"
31.1,"Audio to microwave amplifier, build your own","84","03","Gruchalla, Michael",12,"Mar 84"
31.1,"Band change from six to two meters, quick","70","02","K0YQY",64,"Feb 70"
31.1,"Bandpass filter design, interdigital, computer-aided","85","01","N6JH, Monemzadeh",12,"Jan 85"
31.1,"Bandpass filter design, interdigital, computer-aided","85","06","Short circuit",117,"Jun 85"
31.1,"Bandpass filters, 25 to 2500 MHz","69","09","K6RIL",46,"Sep 69"
31.1,"Bandpass filters, single-pole","69","09","W6HPH",51,"Sep 69"
31.1,"Battery-voltage monitor for HTs (weekender)","82","09","K2MWU",78,"Sep 82"
31.1,"Bicycle mobile","88","09","NH6N",38,"Sep 88"
31.1,"Bypassing, rf, at vhf","72","01","WB6BHI",50,"Jan 72"
31.1,"Cavity filter, 144-MHz","73","12","W1SNN",22,"Dec 73"
31.1,"Cavity filter, 144-MHz","74","03","Short circuit",64,"Mar 74"
31.1,"Cavity filters, surplus, how to modify for 144 MHz","80","02","W4FXE",42,"Feb 80"
31.1,"Coaxial filter, vhf","71","08","W6SAI",36,"Aug 71"
31.1,"Coaxial-line resonators (HN)","70","04","WA7KRE",82,"Apr 70"
31.1,"Coil-winding data, practical vhf and uhf","71","04","K3SVC",6,"Apr 71"
31.1,"Converting mobile microphones for handheld VHF transceivers","86","03","KD8KZ and WB3JCC",79,"Mar 86"
31.1,"Crystal mount, untuned","68","06","W1DTY",68,"Jun 68"
31.1,"Designing a microwave amplifier","87","09","Domanski, S.",30,"Sep 87"
31.1,"Diplexer mods (HN)","83","04","K5PFE",89,"Apr 83"
31.1,"Dual wattmeter, 50-500 MHz","85","07","WB4EHS",67,"Jul 85"
31.1,"Duplexer, six cavity, home-brewed","85","02","K9EYY",12,"Feb 85"
31.1,"Earth-moon-earth (ham radio techniques)","81","02","W6SAI",40,"Feb 81"
31.1,"Effective radiated power (HN)","73","05","VE7CB",72,"May 73"
31.1,"Efficient matching","83","09","VE7BS",83,"Sep 83"
31.1,"EI2W six-meter report (letter)","80","07","EI2W",12,"Jul 80"
31.1,"Elevation indicator, inexpensive","85","06","W5JTL",67,"Jun 85"
31.1,"Elmer's notebook: 1200 MHz band","87","12","W1SL",113,"Dec 87"
31.1,"Elmer's notebook: 220 MHz","87","08","W1SL",91,"Aug 87"
31.1,"EME link calculator program","86","02","KE6ZE",70,"Feb 86"
31.1,"F-237/GRC surplus cavity filter, conversion versatility using the","80","12","W4FXE",22,"Dec 80"
31.1,"Frequency multipliers","71","08","W6GXN",6,"Aug 71"
31.1,"Frequency multipliers, transistor","70","06","W6AJF",49,"Jun 70"
31.1,"Frequency scaler, 500-MHz","75","06","W6URH",32,"Jun 75"
31.1,"Frequency scalers, 1200-MHz","75","02","WB9KEY",38,"Feb 75"
31.1,"Frequency synchronization for scatter-mode propagation","71","09","K2OVS",26,"Sep 71"
31.1,"Frequency synthesizer (letter)","80","07","WA3AXS",12,"Jul 80"
31.1,"Frequency synthesizer, 220 MHz","74","12","W6GXN",8,"Dec 74"
31.1,"G.O.E.S. reception: a simple approach","84","01","WA4WDL",46,"Jan 84"
31.1,"GaAs field-effect transistors, introduction","78","01","WA2ZZF",74,"Jan 78"
31.1,"Get on 6 meters the inexpensive way","85","03","KB1KJ",91,"Mar 85"
31.1,"Gridded tubes, vhf/uhf effects in","69","01","W6UOV",8,"Jan 69"
31.1,"Gunn oscillator design for the 10-GHz band","80","09","WB2ZKW",6,"Sep 80"
31.1,"Handheld transceiver mount (a 2-way ashtray for your car) (weekender)","81","07","KB2XM",64,"Jul 81"
31.1,"Harmonic generator (HN)","70","10","W5GDQ",76,"Oct 70"
31.1,"Helical antenna matching","83","05","Belliveau, John",73,"May 83"
31.1,"Homebrew Diplexer (HN)","89","09","G8MWR",30,"Sep 89"
31.1,"Impedance bridge (HN)","70","02","W6KZK",67,"Feb 70"
31.1,"Improving vhf/uhf receivers","76","03","W1JAA",44,"Mar 76"
31.1,"Indicator, sensitive rf","73","04","WB9DNI",38,"Apr 73"
31.1,"Instant balun (letter)","81","08","W8MQW",6,"Aug 81"
31.1,"K9LHA 2-meter synthesizer, extending the range of (HN)","81","12","K9LHA",52,"Dec 81"
31.1,"Klystron cooler, waveguide (HN)","74","10","WA4WDL",74,"Oct 74"
31.1,"L-band ground wave propagation program","86","01","WA9GFR and Joseph R. Hennel",103,"Jan 86"
31.1,"L-band local oscillators","79","12","N6TX",40,"Dec 79"
31.1,"Local oscillators, high stability for microwave receivers and other applications","85","11","WB3JZO",29,"Nov 85"
31.1,"Low Cost Battery Pack for Your Kenwood TH-25AT Handheld","89","11","KE6WF",40,"Nov 89"
31.1,"Lunar-path nomograph","70","10","WA6NCT",28,"Oct 70"
31.1,"Measuring noise figure","84","01","K2BLA",26,"Jan 84"
31.1,"Micros and VHF beacons transmit messages automatically","85","07","K9EI",51,"Jul 85"
31.1,"Microstrip impedance program","84","12","K8UR",84,"Dec 84"
31.1,"Microstrip impedance, simple formula for","77","12","W1HR",72,"Dec 77"
31.1,"Microstrip transmission line","78","01","W1HR",28,"Jan 78"
31.1,"Microwave bibliography","78","01","W6HDO",68,"Jan 78"
31.1,"Microwave communications, amateur standards for","69","09","K6HIJ",54,"Sep 69"
31.1,"Microwave frequency doubler","76","03","WA4WDL",69,"Mar 76"
31.1,"Microwave hybrids and couplers for amateur use","70","07","W2CTK",57,"Jul 70"
31.1,"Microwave hybrids and couplers for amateur use","70","12","Short circuit",72,"Dec 70"
31.1,"Microwave marker generator, 3cm band (HN)","76","06","WA4WDL",69,"Jun 76"
31.1,"Microwave network for multimode communications","82","08","K4TWJ",36,"Aug 82"
31.1,"Microwave path evaluation","78","01","N7DH",40,"Jan 78"
31.1,"Microwave rf generators, solid-state","77","04","W1HR",10,"Apr 77"
31.1,"Microwave solid-state amplifier design","76","10","WA6UAM",40,"Oct 76"
31.1,"Microwave solid-state amplifier design","77","09","Comment, VK3TK, WA6UAM",98,"Sep 77"
31.1,"Microwave systems, first building blocks for","80","12","WA2GFP",52,"Dec 80"
31.1,"Microwave-frequency converter for vhf counters","80","07","KA9BYI",40,"Jul 80"
31.1,"Microwaves, getting started in","72","06","Roubal",53,"Jun 72"
31.1,"Microwaves, introduction to","72","01","W1CBY",20,"Jan 72"
31.1,"MMIC multiplier chains for the 902 MHz band","87","02","N6JH",72,"Feb 87"
31.1,"MMIC multiplier chains for the 902 MHz band","87","05","Short circuit",64,"May 87"
31.1,"Modular transmit and receive converters for 902 MHz","87","03","N6JH",17,"Mar 87"
31.1,"Monitor, tone alert","80","08","W4KRT",24,"Aug 80"
31.1,"Monolithic RF amplifiers","86","03","N6JH",22,"Mar 86"
31.1,"Moon coordinates, determining basic","85","01","W2WD",38,"Jan 85"
31.1,"Moon-tracking by computer","84","03","K6WX",38,"Mar 84"
31.1,"Moonbounce to Australia","68","04","W1DTY",85,"Apr 68"
31.1,"More about moonbounce (ham radio techniques)","81","03","W6SAI",34,"Mar 81"
31.1,"Multipurpose uhf oscillator, simplifying the","81","09","WA9HYV",28,"Sep 81"
31.1,"Noise figure measurements, vhf","72","06","WB6NMT",36,"Jun 72"
31.1,"Noise figure measurements, vhf noise generators, using (HN)","68","08","K2ZSQ",79,"Aug 68"
31.1,"Noise figure, meaning of","69","03","K6MIO",26,"Mar 69"
31.1,"Novice enhancement and the 220 MHz band, Reflections:","87","04","W9JUV",4,"Apr 87"
31.1,"Outstanding 144-MHz EME achievement","90","04","K8BZW",79,"Apr 90"
31.1,"Phase-locked loop, tunable 50 MHz","73","01","W1KNI",40,"Jan 73"
31.1,"Plasma-diode experiments","80","02","Stockman, Harry",62,"Feb 80"
31.1,"Polaplexer design","77","03","K6MBL",40,"Mar 77"
31.1,"Power dividers and hybrids","72","08","W1DAX",30,"Aug 72"
31.1,"Power dividers, extended/expanded","84","10","W5JTL",73,"Oct 84"
31.1,"Power FETS: trend for VHF amplifiers","84","01","W7PUA and Peters, D.",12,"Jan 84"
31.1,"Power supply, amplifier","83","09","WA2GFP",32,"Sep 83"
31.1,"Practically speaking: parametric amplifiers","88","03","K4IPV",65,"Mar 88"
31.1,"Preamp at work, Quiet!","84","11","N6TX",14,"Nov 84"
31.1,"Proportional temperature control for crystal ovens","70","01","VE5FP",44,"Jan 70"
31.1,"Radio observatory, vhf","74","07","Ham",44,"Jul 74"
31.1,"Radio telescope antenna requirement","83","03","Landecker, Tom",44,"Mar 83"
31.1,"Reflex klystrons, pogo stick for (HN)","73","07","W6BPK",71,"Jul 73"
31.1,"Remote base/simplex phone patch controller","88","08","AA4NX & KK4LA",54,"Aug 88"
31.1,"Repeater security","81","02","WA5FRF",52,"Feb 81"
31.1,"Rf power-detecting devices","70","06","K6JYO",28,"Jun 70"
31.1,"Satellite communications","72","11","K1TMA",52,"Nov 72"
31.1,"Satellite communications","73","04","Added notes (letter)",73,"Apr 73"
31.1,"Satellite signal polarization","72","12","KH6IJ",6,"Dec 72"
31.1,"Silverplating, safe, sensible","85","02","K9EYY",29,"Feb 85"
31.1,"Simple VHF/UHF multiple quarter-wave filters","87","09","WA3EWT",37,"Sep 87"
31.1,"Solar cycle 20, vhfer's view of","74","12","WA5IYX",46,"Dec 74"
31.1,"Solid-state Switching The Midland 13-509, The Weekender","89","06","VE2HOT",17,"Jun 89"
31.1,"Spectrum analyzer microwave","78","07","N6TX",34,"Jul 78"
31.1,"Spectrum analyzer, microwave","77","08","WA6UAM",54,"Aug 77"
31.1,"Sporadic E and 50-MHz transatlantic propagation during 1987","88","07","G3NAQ",10,"Jul 88"
31.1,"Super beep circuit for repeaters","81","07","KP4AQI",48,"Jul 81"
31.1,"Synthesized time identifier for your repeater","82","11","WA4GUA",42,"Nov 82"
31.1,"Tank circuits, design of vhf","70","11","K7UNL",56,"Nov 70"
31.1,"The Guerri report: fiber optics","83","02","Comment, WD9EIA",8,"Feb 83"
31.1,"The Guerri report: fiber optics","83","02","Comments, K2MWU",8,"Feb 83"
31.1,"The Guerri report: fiber optics","86","05","W6MGI",141,"May 86"
31.1,"The Guerri report: mm waves, part1","86","02","W6MGI",109,"Feb 86"
31.1,"The Guerri report: mm waves, part2","86","03","W6MGI",117,"Mar 86"
31.1,"The Guerri report: signal processing","84","12","W6MGI",156,"Dec 84"
31.1,"Tone decoder, the ultimate","82","09","WD9EIA, WB9HGZ",32,"Sep 82"
31.1,"Touchtone auto-dialer, portable","82","08","K2MWU",12,"Aug 82"
31.1,"Trade off power for antenna gain at VHF?","85","07","WA9GFR, Hennel",32,"Jul 85"
31.1,"Trade off power for antenna gain at VHF?","86","04","Comment, WA9GFR",9,"Apr 86"
31.1,"Two-meter autopatches, tone-encoder for","80","06","WB0VSZ",51,"Jun 80"
31.1,"UHF antenna tower, low-cost","84","10","KA6GVY",30,"Oct 84"
31.1,"Uhf dummy load, 150-watt","76","09","WB6QXF",30,"Sep 76"
31.1,"Uhf hardware (HN)","70","10","W6CMQ",76,"Oct 70"
31.1,"Varactor tuning tips (HN)","80","12","N3GN",69,"Dec 80"
31.1,"Vfo, high-stability vhf","72","01","OH2CD",27,"Jan 72"
31.1,"VHF amplifiers, carrier-operated relay","85","04","WB3JCC, KD8KZ",45,"Apr 85"
31.1,"Vhf beacons","69","10","K6EDX",52,"Oct 69"
31.1,"Vhf beacons","71","12","W3FQJ",66,"Dec 71"
31.1,"Vhf circuits, eliminating parallel currents (HN)","77","05","G3IPV",91,"May 77"
31.1,"VHF meteor scatter communications","84","02","AI7J",69,"Feb 84"
31.1,"VHF noise bridge","86","07","OE2APM/AA3K",10,"Jul 86"
31.1,"VHF signal generation, harmonic mixer","85","03","K1ZJH",40,"Mar 85"
31.1,"VHF signal generation, harmonic mixer","85","05","Short circuit",121,"May 85"
31.1,"VHF techniques","80","07","W6NBI",62,"Jul 80"
31.1,"VHF transceivers, regulated power supply for","80","09","WA8RXU",58,"Sep 80"
31.1,"VHF/UHF world","84","09","W1JR",45,"Sep 84"
31.1,"VHF/UHF world","84","10","W1JR",55,"Oct 84"
31.1,"VHF/UHF world","85","11","W1JR",54,"Nov 85"
31.1,"VHF/UHF world","85","12","W1JR",85,"Dec 85"
31.1,"VHF/UHF world: 33 cm - our newest band","86","04","W1JR",83,"Apr 86"
31.1,"VHF/UHF world: 33 cm - our newest band","86","08","Short circuit (p. 87, July 86)",9,"Aug 86"
31.1,"VHF/UHF world: 33 cm update","87","04","W1JR",74,"Apr 87"
31.1,"VHF/UHF world: 33 cm update","87","09","Short circuit",81,"Sep 87"
31.1,"VHF/UHF world: designing and building loop Yagis","85","09","W1JR",56,"Sep 85"
31.1,"VHF/UHF World: DX Records on 50 MHz and Above","89","01","W1JR",48,"Jan 89"
31.1,"VHF/UHF World: DX Records on 50 MHz and Above- pt 2","89","02","W1JR",42,"Feb 89"
31.1,"VHF/UHF world: high power amplifiers: part1","85","01","W1JR",97,"Jan 85"
31.1,"VHF/UHF world: high power amplifiers: part2","85","02","W1JR",38,"Feb 85"
31.1,"VHF/UHF world: IMD and splatter","88","10","W1JR",71,"Oct 88"
31.1,"VHF/UHF world: impedance matching techniques","87","10","W1JR",27,"Oct 87"
31.1,"VHF/UHF world: improving meteor scatter communications","84","06","W1JR",82,"Jun 84"
31.1,"VHF/UHF world: keeping VHF/UHFers up-to-date","85","03","W1JR",126,"Mar 85"
31.1,"VHF/UHF world: loose ends","88","02","W1JR",82,"Feb 88"
31.1,"VHF/UHF world: low-noise GaAs FET technology","84","12","W1JR",99,"Dec 84"
31.1,"VHF/UHF world: meteor scatter communications","86","06","W1JR",68,"Jun 86"
31.1,"VHF/UHF world: meteor scatter communications","86","07","Short circuit",87,"Jul 86"
31.1,"VHF/UHF world: microwave and millimeter-wave update","87","01","W1JR",63,"Jan 87"
31.1,"VHF/UHF world: microwave bands","86","01","W1JR",44,"Jan 86"
31.1,"VHF/UHF world: microwave portable operation","87","06","W1JR",75,"Jun 87"
31.1,"VHF/UHF world: microwave portable operation","87","09","Short circuit",81,"Sep 87"
31.1,"VHF/UHF world: minimum requirements for 2-meter EME - part1","87","08","W1JR",39,"Aug 87"
31.1,"VHF/UHF world: minimum requirements for 2-meter EME - part1","87","12","Comments, W7WRO",9,"Dec 87"
31.1,"VHF/UHF world: minimum requirements for 2-meter EME - part2","87","09","W1JR",65,"Sep 87"
31.1,"VHF/UHF world: operating a VHF/UHF microwave station","87","07","W1JR",38,"Jul 87"
31.1,"VHF/UHF world: operating a VHF/UHF microwave station","87","09","Short circuit",81,"Sep 87"
31.1,"VHF/UHF world: operating a VHF/UHF microwave station","87","10","Short circuit",97,"Oct 87"
31.1,"VHF/UHF world: power splitters and summers","88","05","W1JR",80,"May 88"
31.1,"VHF/UHF world: propagation update","85","07","W1JR",86,"Jul 85"
31.1,"VHF/UHF world: protecting equipment","85","06","W1JR",83,"Jun 85"
31.1,"VHF/UHF world: rf connectors, part1","86","09","W1JR",77,"Sep 86"
31.1,"VHF/UHF world: rf connectors, part2","86","10","W1JR",59,"Oct 86"
31.1,"VHF/UHF world: the VHF/UHF challenge","84","01","W1JR",42,"Jan 84"
31.1,"VHF/UHF world: the VHF/UHF primer, an introduction to filters","84","08","W1JR",112,"Aug 84"
31.1,"VHF/UHF world: the VHF/UHF primer, an introduction to propagation","84","07","W1JR",14,"Jul 84"
31.1,"VHF/UHF world: transmission lines","85","10","W1JR",83,"Oct 85"
31.1,"VHF/UHF world: transmission lines","86","04","Comment, W9ICZ",9,"Apr 86"
31.1,"VHF/UHF world: uW and mm-wave propagation, part2","86","08","W1JR",69,"Aug 86"
31.1,"Voltage-tuned UHF oscillator, multipurpose","80","12","WA9HUV",12,"Dec 80"
31.1,"Weak-signal communications","78","03","W4LTU",26,"Mar 78"
31.1,"Weather radar, 10-GHz","83","09","K4TWJ",61,"Sep 83"
31.1,"Wireless 220-MHz to 2-meter converter (weekender)","82","01","W3RW",36,"Jan 82"
31.1,"X-band calibrator","81","04","WA6EJO",44,"Apr 81"
31.1,"X-band mixer, low noise","83","01","N5AX",22,"Jan 83"
31.2,"10 GHz dielectric antenna (HN)","75","05","WA4WDL",80,"May 75"
31.2,"10 GHz, broadband antenna","77","05","WA4WDL, WB4LJM",40,"May 77"
31.2,"10 GHz, broadband antenna","79","02","Short circuit",94,"Feb 79"
31.2,"1296-MHZ antenna, high-gain","78","05","W3AED",74,"May 78"
31.2,"1296-MHz Yagi","72","05","W2CQH",24,"May 72"
31.2,"1296-MHz Yagi array","75","05","W3AED",40,"May 75"
31.2,"144-MHz antenna switch, solid-state","69","05","K2ZSQ",48,"May 69"
31.2,"144-MHz antenna, 5/8 wave vertical","74","07","K6KLO",40,"Jul 74"
31.2,"144-MHz antenna, 5/8-wave vertical, build from CB mobile whips","74","06","WB4WSU",67,"Jun 74"
31.2,"144-MHz antennas, simple","73","05","WA3NFW",30,"May 73"
31.2,"144-MHz collinear antenna","72","05","W6RJO",12,"May 72"
31.2,"144-MHz collinear uses PVC pipe mast (HN)","76","05","K8LLZ",66,"May 76"
31.2,"144-MHz four-element collinear array","71","05","WB6KGF",6,"May 71"
31.2,"144-MHz ground plane antenna, 0.7 wavelength","69","03","W3WZA",40,"Mar 69"
31.2,"144-MHz moonbounce antenna","70","05","K6HCP",52,"May 70"
31.2,"144-MHz whip, 5/8-wave (HN)","73","04","VE3DDD",70,"Apr 73"
31.2,"2-meter beam, portable","85","10","KB5QJ",113,"Oct 85"
31.2,"432- and 1296-MHz quad-yagi arrays","73","05","W3AED",20,"May 73"
31.2,"432- and 1296-MHz quad-yagi arrays","73","12","Short circuit",58,"Dec 73"
31.2,"432-MHz corner reflector antenna","71","11","WA2FSQ",24,"Nov 71"
31.2,"432-MHz high-gain Yagi","76","01","K6HCP",46,"Jan 76"
31.2,"432-MHz high-gain Yagi","76","05","Comments, W0PW",63,"May 76"
31.2,"432-MHz OSCAR antenna (HN)","75","07","W1JAA",58,"Jul 75"
31.2,"440-MHz collinear antenna, four-element","73","05","WA6HTP",38,"May 73"
31.2,"50-MHz antenna coupler","71","07","K1RAK",44,"Jul 71"
31.2,"50-MHz collinear beam","69","11","K4ERO",59,"Nov 69"
31.2,"50-MHz cubical quad, economy","69","04","W6DOR",50,"Apr 69"
31.2,"50-MHz mobile antenna (HN)","70","10","W4PSJ",77,"Oct 70"
31.2,"6-meter kilowatt amplifier","88","07","KX0O",50,"Jul 88"
31.2,"Antenna insulators, PTFE VHF","85","10","W5JTL",98,"Oct 85"
31.2,"Antenna-performance measurements using celestial sources","79","05","W5CQ/W4RXY",75,"May 79"
31.2,"Cheap and dirty 6-meter beam","88","07","W5UOJ",56,"Jul 88"
31.2,"Circularly-polarized ground-plane antenna for satellite communications","74","12","K4GSX",28,"Dec 74"
31.2,"Colagi antenna, The","86","05","VE3BFM",61,"May 86"
31.2,"Computer-aided design of long VHF Yagi antennas","86","05","VK4ZF",28,"May 86"
31.2,"Convert an inexpensive CB mag-mount antenna into a superb 2-meter whip","86","10","K7DBA",52,"Oct 86"
31.2,"Cylindrical feedhorns revisited","86","02","WA9HUV",20,"Feb 86"
31.2,"Cylindrical feedhorns, second-generation","82","05","WA9HUV",31,"May 82"
31.2,"Direction-finding tool, the fox box","85","10","K1ZJH",25,"Oct 85"
31.2,"Feed horn, cylindrical, for parabolic reflectors","76","05","WA9HUV",16,"May 76"
31.2,"Feeding and matching techniques for vhfluhf antennas","76","05","W1JAA",54,"May 76"
31.2,"Fresnel-zone plate for 10.4 GHz","82","05","WB6YVK",44,"May 82"
31.2,"Fresnel-zone plate for 10.4 GHz","82","11","Comments, KB9O, WB6YVK",8,"Nov 82"
31.2,"Ground plane, portable vhf (HN)","73","05","K9DHD",71,"May 73"
31.2,"Ham notebook: a 2-meter halo antenna","87","05","NR5A",63,"May 87"
31.2,"High-performance Yagis for 432 MHZ","87","07","K1FO",8,"Jul 87"
31.2,"High-performance Yagis for 432 MHZ","87","09","Comments: KLM balun, Scott, W.",6,"Sep 87"
31.2,"High-performance Yagis for 432 MHZ","87","10","Short circuit",97,"Oct 87"
31.2,"Inexpensive five-eighth wave groundplane (HN)","81","03","W7CSD",84,"Mar 81"
31.2,"Log-periodic yagi beam antenna","69","07","K6RIL, W6SAI",8,"Jul 69"
31.2,"Log-periodic yagi beam antenna","70","02","Correction",68,"Feb 70"
31.2,"Long 2-meter collinears - a simple way to achieve gain (HN)","86","05","WB3AYW",95,"May 86"
31.2,"Matching 432-MHz helical antennas","83","03","W8NWU",44,"Mar 83"
31.2,"Matching techniques for vhf/uhf antennas","76","07","W1JAA",50,"Jul 76"
31.2,"Microstrip swr bridge, vhf and uhf","72","12","W4CGC",22,"Dec 72"
31.2,"Microwave antenna, low-cost","69","11","K6HIJ",52,"Nov 69"
31.2,"Open-wire line for 2-meters","87","01","N4UH",94,"Jan 87"
31.2,"Oscar az-el antenna system","78","05","WA1NXP",70,"May 78"
31.2,"Parabolic reflector antennas","74","05","VK3ATN",12,"May 74"
31.2,"Parabolic reflector element spacing","75","05","WA9HUV",28,"May 75"
31.2,"Parabolic reflector gain","75","07","W2TQK",50,"Jul 75"
31.2,"Parabolic reflector, 16-foot homebrew","69","08","WB6IOM",8,"Aug 69"
31.2,"Parabolic reflectors, finding focal length of (HN)","74","03","WA4WDL",57,"Mar 74"
31.2,"Re-entrant cavity antenna for the vhf bands","81","05","W4FXE",12,"May 81"
31.2,"Six-meter J-pole antenna","68","08","K4SDY",48,"Aug 68"
31.2,"Swr meter","70","10","W6VSV",6,"Oct 70"
31.2,"Transmission lines, uhf","71","05","WA2VTR",36,"May 71"
31.2,"True north, how to determine for antenna orientation","80","10","K4DE",38,"Oct 80"
31.2,"True north, how to determine for antenna orientation","81","03","Comments, N6QX, K4DE",7,"Mar 81"
31.2,"Two-meter antenna, simple (HN)","68","08","W6BLZ",78,"Aug 68"
31.2,"Two-meter mobile antennas","68","05","W6BLZ",76,"May 68"
31.2,"Using a 2-meter quarter-wave whip on 450 MHz (HN)","81","05","K1ZJH",92,"May 81"
31.2,"Vhf antenna switching without relays (HN)","68","09","K2ZSQ",77,"Sep 68"
31.2,"VHF Yagi CAD on the C-64","86","09","W4PFZ",70,"Sep 86"
31.2,"VHF/UHF world","85","12","W1JR",85,"Dec 85"
31.2,"VHF/UHF world: optimized 2- and 6-meter Yagis","87","05","W1JR",92,"May 87"
31.2,"VHF/UHF world: optimized 2- and 6-meter Yagis","87","06","Short circuit",26,"Jun 87"
31.2,"VHF/UHF world: optimized 2- and 6-meter Yagis","87","07","Short circuit",49,"Jul 87"
31.2,"VHF/UHF world: optimized 2- and 6-meter Yagis","87","08","Short circuit",41,"Aug 87"
31.2,"VHF/UHF world: optimized 2- and 6-meter Yagis","87","09","Short circuit",81,"Sep 87"
31.2,"VHF/UHF world: reflector antennas, part1","86","02","W1JR",51,"Feb 86"
31.2,"VHF/UHF world: reflector antennas, part1","86","04","Short circuit",45,"Apr 86"
31.2,"VHF/UHF world: reflector antennas, part2","86","03","W1JR",68,"Mar 86"
31.2,"VHF/UHF world: stacking antennas, part1","85","04","W1JR",129,"Apr 85"
31.2,"VHF/UHF world: stacking antennas, part2","85","05","W1JR",95,"May 85"
31.2,"VHF/UHF world: VHF/UHF antennas and antenna systems","84","02","W1JR",46,"Feb 84"
31.2,"VHF/UHF world: VHF/UHF antennas and antenna systems","86","01","Short circuit",54,"Jan 86"
31.2,"VHF/UHF world: Yagi facts and fallacies","86","05","W1JR",103,"May 86"
31.2,"Weathering the elements at 10.4 GHz","82","08","WB6YVK",74,"Aug 82"
31.2,"Yagi trigon reflector, Optimizing","86","01","WB3BGU",84,"Jan 86"
31.2,"Yagi, a high-gain 70-cm","86","12","W1JR",75,"Dec 86"
31.2,"Yagi, a high-gain 70-cm","87","02","Short circuit",68,"Feb 87"
31.3,"10 GHz hybrid-tee mixer","77","10","G3NRT",34,"Oct 77"
31.3,"10-60MHz preamp, low-noise, low-cost","81","05","WA2GFP",65,"May 81"
31.3,"1296 MHz, double-balanced mixers for","75","07","WA6UAM",8,"Jul 75"
31.3,"1296-MHz converter, solid state","70","11","VK4ZT",6,"Nov 70"
31.3,"1296-MHz local-oscillator chain","78","10","WA2ZZF",42,"Oct 78"
31.3,"1296-MHz low noise amplifier (Weekender)","88","11","WA9HUV",60,"Nov 88"
31.3,"1296-MHz noise generator","73","08","W3BSV",46,"Aug 73"
31.3,"1296-MHz preamplifier","75","10","WA6UAM",42,"Oct 75"
31.3,"1296-MHz preamplifier, low-noise transistor","71","06","WA2VTR",50,"Jun 71"
31.3,"1296-MHz preamplifier, low-noise transistor","72","01","Added note (letter)",65,"Jan 72"
31.3,"1296-MHz preamplifiers, microstripline","75","04","WA6UAM",12,"Apr 75"
31.3,"1296-MHz preamplifiers, microstripline","76","01","Comments, W2DU",68,"Jan 76"
31.3,"1296-MHz rat-race balanced mixer","77","07","WA6UAM",33,"Jul 77"
31.3,"1296-MHz ssb transceiver","74","09","WA6UAM",8,"Sep 74"
31.3,"144-432 MHz GaAs fet preamp","79","11","JH1BRY",38,"Nov 79"
31.3,"144-MHz converter (HN)","70","08","K0VQY",71,"Aug 70"
31.3,"144-MHz converter, high dynamic range","77","07","DJ2LR",55,"Jul 77"
31.3,"144-MHz converters, choosing fats (HN)","69","08","K6JYO",70,"Aug 69"
31.3,"144-MHz deluxe mosfet converter","71","02","WB2EGZ",41,"Feb 71"
31.3,"144-MHz deluxe mosfet converter","71","10","Letter, W0LER",71,"Oct 71"
31.3,"144-MHz deluxe mosfet converter","71","12","Short circuit",96,"Dec 71"
31.3,"144-MHz etched-inductance bandpass filters and filter-preamplifiers","71","02","W5KHT",6,"Feb 71"
31.3,"144-MHz fm receiver","70","09","W9SEK",22,"Sep 70"
31.3,"144-MHz fm receiver","72","02","WA2GBF",42,"Feb 72"
31.3,"144-MHz fm receiver","72","07","Added notes",73,"Jul 72"
31.3,"144-MHz fm receiver","72","11","WA2GCF",6,"Nov 72"
31.3,"144-MHz preamp, low-noise","76","04","W1DTY",40,"Apr 76"
31.3,"144-MHz preamp, super (HN)","69","10","K6HCP",72,"Oct 69"
31.3,"144-MHz preamplifier, improved","72","03","WA2GCF",25,"Mar 72"
31.3,"144-MHz preamplifier, low noise","74","06","W8BBB",36,"Jun 74"
31.3,"144-MHz transverter using power fets","76","09","WB0BPI",10,"Sep 76"
31.3,"2-Meter Converter with Q Multiplier","89","11","WA9HUV",33,"Nov 89"
31.3,"2-meter monitor","88","07","WA3ENK",64,"Jul 88"
31.3,"2-meter synthesizer, frequency modulator for","81","04","K9LHA",68,"Apr 81"
31.3,"2-meter transverter","82","01","W6HPH",24,"Jan 82"
31.3,"2-meter weather converter","83","12","WA3EEC",87,"Dec 83"
31.3,"220-MHz 9600-Baud Data Radio System for Packet","89","02","W2DUC",67,"Feb 89"
31.3,"220-MHz mosfet converter","69","01","WB2EGZ",28,"Jan 69"
31.3,"220-MHz mosfet converter","69","07","Short circuit",76,"Jul 69"
31.3,"220-mhz receiving adapter (Weekender)","90","04","K1ZJH",20,"Apr 90"
31.3,"2304-MHz balanced mixer","75","10","WA2ZZF",58,"Oct 75"
31.3,"2304-MHz converter, solid-state","72","03","K2JNG, WA2LTM, WA2VTR",16,"Mar 72"
31.3,"2304-MHz preamplifier, low-noise","83","02","WA2GFP",12,"Feb 83"
31.3,"2304-MHz preamplifier, solid-state","72","08","WA2VTR",20,"Aug 72"
31.3,"2304-MHz preamplifiers, narrow-band solid-state","74","07","WA9HUV",6,"Jul 74"
31.3,"28-30 MHz low-noise preamp","75","10","W1JAA",48,"Oct 75"
31.3,"30-MHz preamplifier, low-noise","78","10","W1HR",38,"Oct 78"
31.3,"30-MHz preamplifier, low-noise","79","02","Short circuit",94,"Feb 79"
31.3,"3456-MHz Linear Transverter","89","01","WA3JUF",68,"Jan 89"
31.3,"432 MHz preamplifier and converter","75","07","WA2GCF",40,"Jul 75"
31.3,"432- and 1296-MHz signalsource","68","09","K6RIL",20,"Sep 68"
31.3,"432-MHz converter","79","04","N9KD",74,"Apr 79"
31.3,"432-MHz converter, low-noise","70","10","K6JC",34,"Oct 70"
31.3,"432-MHz fet converter, low-noise","68","05","WA6SXC",18,"May 68"
31.3,"432-MHz fet preamp (HN)","69","08","W1DTY",66,"Aug 69"
31.3,"432-MHz GaAs preamp","78","04","JH1BRY",22,"Apr 78"
31.3,"432-MHz preamplifier, low-noise","78","10","WB5LUA",26,"Oct 78"
31.3,"432-MHz preamplifier, ultra low-noise","75","03","W1JAA",8,"Mar 75"
31.3,"435-MHz Low-noise GaAsFET Preamplifier","89","07","WA2FTK and K1JUL",9,"Jul 89"
31.3,"50-MHz deluxe mosfet converter","71","02","WB2EGZ",41,"Feb 71"
31.3,"50-MHz etched-inductance bandpass filters and filter-preamplifiers","71","02","W5KHT",6,"Feb 71"
31.3,"50-MHz preamplifier, Improved","73","01","WA2GCF",46,"Jan 73"
31.3,"Add fm to your receiver (weekender)","81","03","K3NXU",74,"Mar 81"
31.3,"Audio filter, tunable, for weak-signal communications","75","11","K6HCP",28,"Nov 75"
31.3,"Calculating preamplifier gain from noise figure measurements","77","11","N6TX",30,"Nov 77"
31.3,"Cavity filters, surplus, how to modify for 144 MHz","80","02","W4FXE",42,"Feb 80"
31.3,"Cooled preamplifier for vhf-uhf reception","72","07","WA0RDX",36,"Jul 72"
31.3,"Crystal-controlled vhf receivers, tuning aid for (HN)","80","07","WA1FHB",69,"Jul 80"
31.3,"Double-balanced mixers, circuit packaging for","77","09","WA6UAM",41,"Sep 77"
31.3,"Easy Monitor Receiver for 2 Meters","89","04","WASSNZ",28,"Apr 89"
31.3,"Fet converters for 50, 144, 220 and 432 MHz","68","03","W6AJF",20,"Mar 68"
31.3,"Fm transceiver, remote synthesized for 2 meters","80","01","WB4UPC",28,"Jan 80"
31.3,"GaAs FET performance and preamplifier application","83","03","K8UR",38,"Mar 83"
31.3,"GaAs FET performance and preamplifier application","83","07","Comments, KC0W",12,"Jul 83"
31.3,"High Performance 2-Meter Transverter","89","07","W84EHS",68,"Jul 89"
31.3,"Kenscan 74","81","01","WB7QYB",50,"Jan 81"
31.3,"Kenscan 74","82","01","Short circuit",89,"Jan 82"
31.3,"lnterdigital preamplifier and comb-line bandpass filter for vhf and uhf","70","08","W6KHT",6,"Aug 70"
31.3,"Local oscillators, high stability for microwave receivers and other applications","85","11","WB3JZO",29,"Nov 85"
31.3,"Microwave amplifier design, solid state","76","10","WA6UAM",40,"Oct 76"
31.3,"Microwave mixer, new","78","10","WA0RDX",84,"Oct 78"
31.3,"Modification of K9LHA 2-meter synthesizer for 144-148 MHz coverage (HN)","81","05","K9LHA",93,"May 81"
31.3,"Noise figure, sensitivity and dynamic range","75","10","W1DTY",8,"Oct 75"
31.3,"Noise figure, vhf, estimating","75","06","WA9HUV",42,"Jun 75"
31.3,"Overload problems with vhf converters, solving","73","01","W1OOP",53,"Jan 73"
31.3,"Preamplifier design, UHF, computer-aided","82","10","KB0O",28,"Oct 82"
31.3,"Preamplifiers, vhf low-noise","79","12","WA2GFP",50,"Dec 79"
31.3,"Receiver scanner, vhf","73","02","K2LZG",22,"Feb 73"
31.3,"Receiver, superregenerative, for vhf","73","07","WA5SNZ",22,"Jul 73"
31.3,"Signal detection and communication in the presence of white noise","69","02","WB6IOM",16,"Feb 69"
31.3,"Signal generator for two and six meters","69","11","WA8OIK",54,"Nov 69"
31.3,"Single-frequency conversion, vhf/uhf","75","04","W3FQJ",62,"Apr 75"
31.3,"Six-meter mosfet converter","68","06","WB2EGZ",22,"Jun 68"
31.3,"Six-meter mosfet converter","68","08","Short circuit",34,"Aug 68"
31.3,"Synthesizer, genesis of a","81","03","VE3FIT",38,"Mar 81"
31.3,"TR-2500/2600 2-channel programming (HN)","85","10","K9MLD",128,"Oct 85"
31.3,"Two-meter converter, 1.5-dB NF","68","07","WA6SXC",14,"Jul 68"
31.3,"Two-meter preamp, MM5000","68","10","W4KAE",49,"Oct 68"
31.3,"UHF GaAsFET Doubler, The Weekender:","89","04","WA9HUV",65,"Apr 89"
31.3,"UHF local-oscillator chain","79","07","N6TX",27,"Jul 79"
31.3,"Vhf converter performance, optimizing (HN)","68","07","K2ZSQ",18,"Jul 68"
31.3,"Vhf receiver, general-purpose","78","07","K1ZJH",16,"Jul 78"
31.3,"Vhf/uhf preamplifier burnout (HN)","78","11","W1JR",43,"Nov 78"
31.3,"VHF/UHF world","85","11","W1JA",54,"Nov 85"
31.3,"VHF/UHF world: low noise receiver update - part2","87","12","W1JR",72,"Dec 87"
31.3,"VHF/UHF world: low-noise GaAs FET technology","84","12","W1JR",99,"Dec 84"
31.3,"VHF/UHF world: VHF/UHF receivers","84","03","W1JR",42,"Mar 84"
31.3,"Weak-signal source, 144 and 432 MHz","70","03","K6JC",58,"Mar 70"
31.3,"Weak-signal source, stable, variable output","71","09","K6JYO",36,"Sep 71"
31.3,"Yaesu's latest VHF/UHF receiver, add general coverage","85","10","W6MGI",67,"Oct 85"
31.3,"Yaesu's latest VHF/UHF receiver, add general coverage","87","10","Short circuit",97,"Oct 87"
31.4,"1152- to 2304-MHz power doubler","75","12","WA9HUV",40,"Dec 75"
31.4,"1270-MHz video-modulated power amplifier","77","06","W9ZIH",67,"Jun 77"
31.4,"1296-MHz frequency tripler","69","09","K4SUM, W4API",40,"Sep 69"
31.4,"1296-MHz linear, high-power","68","08","WB6IOM",6,"Aug 68"
31.4,"1296-MHz linear, high-power","68","11","Short circuit",54,"Nov 68"
31.4,"1296-MHz power amplifier","70","03","W2COH, W2CCY, W2OJ, W1IMU",43,"Mar 70"
31.4,"1296-MHz ssb transceiver","74","09","WA6UAM",8,"Sep 74"
31.4,"1296-MHz transverter","77","07","K6ZMW",10,"Jul 77"
31.4,"144-and 432-MHz stripline amplifier/tripler","70","02","K2RIW",6,"Feb 70"
31.4,"144-MHz 10/80-watt amplifier","79","02","WB9RMA",12,"Feb 79"
31.4,"144-MHz fm transceiver, compact","74","01","W6AOI",36,"Jan 74"
31.4,"144-MHz fm transmitter","71","07","W6AJF",14,"Jul 71"
31.4,"144-MHz fm transmitter","72","04","W9SEK",6,"Apr 72"
31.4,"144-MHz fm transmitter, Sonobaby","71","10","WA0UZO",8,"Oct 71"
31.4,"144-MHz fm transmitter, Sonobaby","72","10","Crystal deck for Sonobaby",26,"Oct 72"
31.4,"144-MHz heterodyne transmitting mixers","69","04","K2ISP",8,"Apr 69"
31.4,"144-MHz heterodyne transmitting mixers","70","09","Correction",76,"Sep 70"
31.4,"144-MHz linear","69","01","W4KAE",47,"Jan 69"
31.4,"144-MHz linear, 2kW, design data for","69","03","W6UOV",7,"Mar 69"
31.4,"144-MHz low-drive kilowatt linear","70","07","W6HHN",26,"Jul 70"
31.4,"144-MHz multimode transmitter","70","09","K2ISP",28,"Sep 70"
31.4,"144-MHz phase-modulated transmitter","70","02","W6AJF",18,"Feb 70"
31.4,"144-MHz power amplifier, 10-watt solid-state (HN)","74","01","W1DTY",67,"Jan 74"
31.4,"144-MHz power amplifier, 80-watt, solid-state","73","12","Hatchett",6,"Dec 73"
31.4,"144-MHz power amplifier, high performance","71","08","W6UOV",22,"Aug 71"
31.4,"144-MHz power amplifiers, fm","73","04","W4CGC",6,"Apr 73"
31.4,"144-MHz stripline kilowatt","77","10","W2GN",10,"Oct 77"
31.4,"144-MHz transceiver, a-m","71","12","K1AOB",55,"Dec 71"
31.4,"144-MHz transmitting converter, solid-state ssb","74","02","W6NBI",6,"Feb 74"
31.4,"144-MHz transmitting converter, solid-state ssb","74","12","Short circuit",62,"Dec 74"
31.4,"144-MHz transverter","72","02","K1RAK",24,"Feb 72"
31.4,"144-MHz two-kilowatt linear","70","04","W6UOV, W6ZO, K6DC",26,"Apr 70"
31.4,"2-meter synthesizer, frequency modulator for","81","04","K9LHA",68,"Apr 81"
31.4,"220-MHz exciter","71","11","WB6DJV",50,"Nov 71"
31.4,"220-MHz power amplifier","71","12","W6UOV",44,"Dec 71"
31.4,"220-MHz rf power amplifier","71","01","WB6DJV",44,"Jan 71"
31.4,"220-MHz rf power amplifier, fm","73","09","K7JUE",6,"Sep 73"
31.4,"2304-MHz power amplifier","75","02","WA9HUV",8,"Feb 75"
31.4,"2C39, water cooling","69","06","K6MYC",30,"Jun 69"
31.4,"432-MHz 100-watt solid-state power amplifier","75","09","WA7CNP",36,"Sep 75"
31.4,"432-MHz amplifier, 2-kW","68","09","W6SAI, W6NLZ",6,"Sep 68"
31.4,"432-MHz exciter, solid-state","69","10","W1OOP",38,"Oct 69"
31.4,"432-MHz power amplifier using stripiine techniques","77","06","W3HMU",10,"Jun 77"
31.4,"432-MHz rf power amplifier","70","04","K6JC",40,"Apr 70"
31.4,"432-MHz solid-state linear amplifier","75","08","WB6QXF",30,"Aug 75"
31.4,"432-MHz ssb converter","70","01","K6JC",48,"Jan 70"
31.4,"432-MHz ssb converter","70","06","Short circuit",79,"Jun 70"
31.4,"432-MHz ssb, practical approach","71","06","WA2FSQ",6,"Jun 71"
31.4,"432-MHz stripline tripler","70","02","K2RIW",6,"Feb 70"
31.4,"50-MHz 2 kW linear afnplifier","71","02","W6UOV",16,"Feb 71"
31.4,"50-MHz customized transverter","71","03","K1RAK",12,"Mar 71"
31.4,"50-MHz heterodyne transmitting mixer","69","04","K2ISP",8,"Apr 69"
31.4,"50-MHz heterodyne transmitting mixer","70","09","Correction",76,"Sep 70"
31.4,"50-MHz kilowatt, inductively-tuned","75","09","K1DPP",8,"Sep 75"
31.4,"50-MHz linear amplifier","71","11","K1RAK",38,"Nov 71"
31.4,"50-MHz multimode transmitter","70","09","K2ISP",28,"Sep 70"
31.4,"50-MHz SSB exciter","79","10","K1LOG",12,"Oct 79"
31.4,"50-MHz transverter","69","07","WA9IGU",44,"Jul 69"
31.4,"6-meter amplifier","83","04","W2GN",72,"Apr 83"
31.4,"6-meter amplifier","83","08","Short circuit",97,"Aug 83"
31.4,"Aligning vhf transmitters","68","09","Allen",58,"Sep 68"
31.4,"Amplifier, 2 meter, 40 watt","83","10","WB4GCS",50,"Oct 83"
31.4,"Amplifier, 432-MHz, 1500-watt","85","07","W2GN",40,"Jul 85"
31.4,"AN/UPX-6 cavities, converting surplus","81","03","W6NBI",12,"Mar 81"
31.4,"CMOS 2-meter synthesizer","82","01","Short circuit",89,"Jan 82"
31.4,"Converting the Swan 120 to two meters","68","05","K6RIL",8,"May 68"
31.4,"External anode tetrodes","69","06","W6SAI",23,"Jun 69"
31.4,"Fm transceiver, remote synthesized for 2 meters","80","01","WB4UPC",28,"Jan 80"
31.4,"Heathkit Seneca As A 2-meter FM Amplifier","89","03","W3NNL",8,"Mar 89"
31.4,"Inductively-tuned tank circuit","70","07","W6SAI",6,"Jul 70"
31.4,"Lighthouse tubes for uhf","69","06","W6UOV",27,"Jun 69"
31.4,"Linear amplifiers, solid-state vhf","80","01","AF8Z",48,"Jan 80"
31.4,"Low-noise phase-locked UHF VCO part 1: the noise problem","86","07","WA9HUV",33,"Jul 86"
31.4,"Low-noise phase-locked UHF VCO part 1: the noise problem","86","12","Short circuit",9,"Dec 86"
31.4,"Low-noise phase-locked UHF VCO part 2: construction and testing","86","08","WA9HUV",25,"Aug 86"
31.4,"Modification of K9LHA 2-meter synthesizer for 144-148 MHz coverage (HN)","81","05","K9LHA",93,"May 81"
31.4,"Pi networks, series-tuned","71","10","W2EGH",42,"Oct 71"
31.4,"Signal Source for 903 MHz, The weekender:","89","01","N6JH",88,"Jan 89"
31.4,"Six-meter transmitter, solid-state","68","10","WB2EGZ",6,"Oct 68"
31.4,"Six-meter transverter","68","12","K8DOC, K8TVP",44,"Dec 68"
31.4,"Six-meter tunnel diode phone rig (HN)","68","07","K2ZSQ",74,"Jul 68"
31.4,"Solid-state power for 1296 MHz","81","02","N6JH",30,"Feb 81"
31.4,"Ssb input source for vhf, uhf transverters (HN)","70","09","F8MK",69,"Sep 70"
31.4,"Synthesizer, genesis of a","81","03","VE3FIT",38,"Mar 81"
31.4,"Temperature control, automatic","85","06","WB5IRI",75,"Jun 85"
31.4,"TR-2500/2600 2-channel programming (HN)","85","10","K9MLD",128,"Oct 85"
31.4,"Transistors for vhf transmitters (HN)","69","09","W1OOP",74,"Sep 69"
31.4,"VCO, 1800-2600 MHz","85","07","W0DTV",21,"Jul 85"
31.4,"Vhf linear, 2 kW, design data for","69","03","W6UOV",7,"Mar 69"
31.4,"VHF/UHF world: medium power amplifiers","85","08","W1JR",39,"Aug 85"
31.4,"VHF/UHF world: VHF/UHF exciters","84","04","W1JR",84,"Apr 84"
31.4,"VHF/UHF world: VHF/UHF exciters","84","10","Short circuit",60,"Oct 84"
31.4,"Water-cooled 2C39 (HN)","77","09","WA9RPB",94,"Sep 77"
31.4,"Weaver modulation, 2-meter transmitter","85","07","N1COX",12,"Jul 85"
31.4,"X-band beacons","87","01","WA6EJO",29,"Jan 87"
31.5,"Designing a station for the microwave bands: part 1","88","02","N6GN",41,"Feb 88"
31.5,"Designing a station for the microwave bands: part 2","88","06","N6GN",19,"Jun 88"
31.5,"Designing a station for the microwave bands: part 2","88","10","Short circuit:",35,"Oct 88"
31.5,"Designing a station for the microwave bands: part 3","88","10","N6GN",17,"Oct 88"
31.5,"Inexpensive Multi-megabaud Microwave Data Link","89","12","N6GN",9,"Dec 89"
31.5,"Microwaves","90","02","KA1GT",20,"Feb 90"
31.5,"Microwaves: feedback","90","05","KA1GT",18,"May 90"
31.5,"Microwaves: laser communication systems","90","03","KA1GT",18,"Mar 90"
31.5,"Microwaves: microwave basics","90","06","KA1GT",22,"Jun 90"
31.5,"Microwaves: optical receiver","90","04","KA1GT",14,"Apr 90"
31.5,"Radial line stub design","88","02","N1BEP",65,"Feb 88"
31.5,"VHF/UHF world: microwave components and terminology- part 1","88","03","W1JR",71,"Mar 88"
31.5,"VHF/UHF world: microwave components and terminology- part 2","88","04","W1JR",67,"Apr 88"
31.5,"Waveguide Flange Drilling Guide","89","07","WA4WDL",53,"Jul 89"
