hr index - miscellaneous technical

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24-hour clock, digital WB6AFT 44 Mar 77 +
Ac-line switching precautions (HN) W5PGG 69 Jul 81 +
Active bandpass filters WB6GRZ 49 Dec 77 +
Active bandpass filters Short circuit 94 Feb 79 +
Admittance, impedance and circuit analysis Anderson 76 Aug 77 +
Admittance, impedance and circuit analysis Short circuit 94 Feb 79 +
Air pressure, measuring across transmitting tubes (HN) W4PSJ 89 Jan 80 +
Alarm, wet basement (HN) W2EMF 68 Apr 72
ALC circuits, improving amplifier: part1 WA8AJN 40 Aug 84 +
ALC circuits, improving amplifier: part2 WA8AJN 38 Sep 84 +
Amateur anemometer W6GXN 52 Jun 68
Amateur anemometer Short circuit 34 Aug 68
Amateur FSK: A spectral analysis WA6NCX 42 Dec 86 +
Amateur Radio in Space - a bibliography W6OLO 60 Aug 68
Amateur Radio in Space - a bibliography Addenda 77 Oct 68
Amplifier for 220 MHz, stripline kilowatt W2GN 12 Apr 82 +
Amplitude compandored sideband WB6JNN 48 Dec 80 +
An Audio Patch Panel for The Multimode Station KB6IC 65 Dec 89 +
An Inexpensive VFO for the Yaesu FT-102 VE3RF 62 Nov 89 +
Analog-to-digital display converter for the visually handicapped KB7JW 44 Jan 81 +
Antenna masts, design for pipe W3MR 52 Sep 74 +
Antenna masts, design for pipe Added design notes (letter) 75 May 75 +
Antennas and capture area K6MIO 42 Nov 69 +
Audio to microwave amplifier, build your own Gruchalla, Michael 12 Mar 84 +
Bandpass filter design K4KJ 36 Dec 73 +
Bandpass filters for 50 and 144 MHz, etched W5KHT 6 Feb 71 +
Bandpass filters, single-pole W6HPH 51 Sep 69
Bandpass filters, top-coupled Anderson 34 Jun 77 +
Bandspreading techniques for resonant circuits Anderson 46 Feb 77 +
Bandspreading techniques for resonant circuits Short circuit 69 Dec 77 +
Basic electronic units W2DXH 18 Oct 68
Batteries, selecting for portable equipment WB0AIK 40 Aug 73 +
Battery charging (letter) Carlson 6 Nov 80 +
Bicycle-powered station W1BG 25 Dec 84 +
Bipolar-fet amplifiers W6HDM 16 Feb 76 +
Bipolar-fet amplifiers Comments, Worcester 76 Sep 76 +
Branch-line hybrid: part1 WA2EWT 107 Apr 84 +
Branch-line hybrid: part2 WA2EWT 93 May 84 +
Broadband amplifier uses mospower fet Oxner 32 Dec 76 +
Broadband amplifier, bipolar WB4KSS 58 Apr 75 +
Broadband amplifier, wide-range W6GXN 40 Apr 74 +
Broadband amplifier-attenuator W7SX 59 Jul 86 +
Build a 1-1000 MHz amplifier using MAR-4 MMICS WB6BIH 33 Jul 87 +
Build a QSO "beeper" KF6CU 38 Jan 88 +
Build your own supercharger K3OF 22 Mar 90 +
Build your own supercharger Short circuit 78 May 90 +
Buying topo maps Comments: K3SKE 9 Dec 86 +
Bypassing, rf, at uhf WB6BHI 50 Jan 72
Calculator, hand-held electronic, its function and use W4MB 18 Aug 76 +
Calculator, hand-held electronic, solving problems with it W4MB 34 Sep 76 +
Calculator-aided circuit analysis Anderson 38 Oct 77 +
Can I patent it? K2LZ 8 Mar 87 +
Capacitors, oil-filled (HN) W2OLU 66 Dec 72 +
CATVI (letter) WB4NMA 10 Aug 83 +
Changing fundamental constants of science Comments: W4SXK 6 Oct 87 +
Circuit figure of merit (letter) W2JTP 6 Dec 80 +
Cleaning electronic hardware (HN) WA1FHB 57 Jun 90 +
Clock, 24-hour digital K4ALS 51 Apr 70
Clock, 24-hour digital Short circuit 76 Sep 70 +
Coil-winding data, vhf and uhf K3SVC 6 Apr 71
Communicating on 474,083 GHz (light wave communications) Comments, W6JTH 8 Jun 83 +
Communicating on 474,083 GHz (light wave communications) WA6EJO 10 Dec 86 +
Communications receivers, designing for strong-signal performance Moors 6 Feb 73 +
Commutating filters W6GXN 54 Sep 79 +
Computer for the blind (HN) W8MQW 69 Jun 82 +
Computer-aided circuit analysis K1ORV 30 Aug 70
Contact bounce eliminators (letters) W7IV 94 Nov 77 +
Control By Tones ZL2SX 42 Nov 89 +
Converting vacuum tube equipment to solid-state W2EEY 30 Aug 68
Converting wavelength to inches (HN) WA6SXC 56 Jun 68
Crystal filters, monolithic DK1AG 28 Nov 78 +
Crystal use locator WA6SWR 36 Nov 80 +
Current flow?, which way does W2DXH 34 Jul 68
CW identifier, versatile WB2BWJ 22 Oct 80 +
CW identifier, versatile Short circuit 70 Feb 82 +
CW identifier, versatile, an improved memory for WB2BWJ 24 Feb 82 +
CW station, updating (HN) KM5T 77 Oct 82 +
Data bandwidths compared W9JD/2 50 Dec 82 +
Decibel, defining the Gruchalla, Michael 51 Feb 88 +
Design curves for loudness-compensated volume controls Tseng Liao 30 May 90 +
Digital clock, low-cost WA6DYW 26 Feb 76 +
Digital mixer, introduction WB8IFM 42 Dec 73 +
Digital readout system, simplified W6OIS 42 Mar 74 +
Double-balanced mixers W1DTY 48 Mar 68
Double-balanced modulator, broadband WA6NCT 8 Mar 70 +
DSB generators, audio-driven (HN) W5TRS 68 Jul 80 +
Earth anchors for guyed towers W5QJR 60 May 80 +
Earth currents (HN) W7OUI 80 Apr 70
Effective noise temperature, part 1: introduction and background Michael Gruchalla 58 Feb 90 +
Effective noise temperature, part 2: equivalent noise temperature and NF Michael Gruchalla 33 Mar 90 +
Effective radiated power (HN) VE7CB 72 May 73 +
Eimac 5CX1500A power pentode, notes on K9XI 60 Aug 80 +
Electrical units: their derivation and history WB6EYV 30 Aug 76 +
Electrolytic capacitors (letter) WB8MKU 6 Jun 81 +
Electrolytic capacitors, re-forming the oxide layer (HN) K9MM 99 Jul 78 +
Electromagnetic interference and the digital era K3PUR 114 Sep 84 +
Eliminating the matrix KH6AP 60 May 72 +
Elmer's notebook: The mysterious "Q" W1SL 110 Sep 88 +
EMI/RFI shielding: new techniques part1 Martin, Vaughn D. 72 Jan 84 +
EMI/RFI shielding: new techniques part2 Martin, Vaughn D. 84 Feb 84 +
Ezy tune, HW-5400 (HN) AB4DP 70 Jan 90 +
Ferrite beads W5JJ 48 Oct 70
Ferrite beads, how to use K1ORV 34 Mar 73 +
Fet biasing W3FQJ 61 Nov 72
Field-strength meter and volt-ohmmeter WB6AFT 70 Feb 79 +
Filter design, graphic W6NRW 37 Apr 84 +
Filter design, graphic Short circuit 13 Jul 84 +
Filter preamplifiers for 50 and 144 MHz, etched W5KHT 6 Feb 71 +
Filters (letter) W6XM 8 Feb 83 +
Filters (letter) Comments, W3NQW 8 Apr 83 +
Filters, active for direct-conversion receivers W7ZOI 12 Apr 74 +
Filters, bridged W6MUR 51 Oct 82 +
Fire extinguishers (letter) W5PGG 68 Jul 71
Fire protection Darr 54 Jan 71 +
Fire protection (letter) K7QCM 62 Aug 71 +
Fm techniques W6SAI 8 Sep 69
Fm techniques Short circuit 79 Jun 70 +
Four-quadrant curve tracer/analyzer W1QXS 46 Feb 79 +
Freon danger (letter) WA5RTB 63 May 72 +
Frequency counter as a synthesizer DJ2LR 44 Sep 77 +
Frequency divider, diode W5TRS 54 Aug 80 +
Frequency multipliers W6GXN 6 Aug 71 +
Frequency multipliers, transistor W6AJF 49 Jun 70 +
Frequency synchronization for scatter-mode propagation K2OVS 26 Sep 71
Frequency synthesis WA5SKM 42 Dec 69 +
Frequency synthesizer sidebands, filter reduces (HN) K1PCT 80 Jun 77 +
Frequency synthesizer, high-frequency K2BLA 16 Oct 72
Frequency synthesizers, how to design DJ2LR 10 Jul 76 +
Frequency synthesizers, how to design Short circuit 85 Oct 76 +
Frequency-lock loop WA3ZKZ 17 Aug 78 +
Function Generator: circuits from your signal generator - part 1 K4IPV 67 Dec 86 +
Gamma-matching networks, how to design W7ITB 46 May 73 +
Glass semiconductors W1EZT 54 Jul 69 +
Graphical network solutions W1NCK,W2CTK 26 Dec 69 +
Gridded tubes, vhf-uhf effects in W6UOV 8 Jan 69 +
Ground plow W1EZT 64 May 70 +
Ground systems, notes on K6WX 26 May 80 +
Grounding and wiring W1EZT 44 Jun 69 +
Gyrator: a synthetic inductor WB9ATW 96 Jun 78 +
Ham radio techniques W6SAI 63 May 84 +
Ham radio techniques W6SAI 106 Oct 84 +
Ham radio techniques W6SAI 75 Jan 85 +
Ham radio techniques W6SAI 59 Feb 85 +
Ham radio techniques W6SAI 83 Mar 85 +
Ham radio techniques W6SAI 66 May 85 +
Ham radio techniques W6SAI 51 Jun 85 +
Ham radio techniques W6SAI 59 Jul 85 +
Ham radio techniques W6SAI 90 Aug 85 +
Ham radio techniques W6SAI 75 Oct 85 +
Ham radio techniques W6SAI 67 Nov 85 +
Ham radio techniques, fifty years ago W6SAI 58 Jun 84 +
Ham radio techniques: 9CXX revisited W6SAI 83 Dec 87 +
Ham Radio Techniques: Antennas, GFI, Capacitors and Fundamentals W6SAI 57 Dec 89 +
Ham radio techniques: electron-hole theory exposed as fraud W6SAI 67 Apr 85 +
Ham radio techniques: I have seen the future and it works W6SAI 91 Sep 85 +
Ham Radio techniques: line voltage and power tube life W6SAI 60 Jul 88 +
Ham radio techniques: radio-frequency interference W6SAI 34 Nov 81 +
Ham radio techniques: radio-frequency interference W6SAI 30 Dec 81 +
Ham Radio techniques: the joys of TVI or, were you on the air last night? W6SAI 70 Aug 88 +
Handy ante switch (Weekender) W4E1N 18 Feb 90 +
Harmonic generator, crystal-controlled W1KNI 66 Nov 77 +
Harmonic output, how to predict Utne 34 Nov 74 +
Harmonic product detector for QRP transceivers W5FG 44 Jun 83 +
Harmonics, Trapping stubborn N1RC 99 Jan 86 +
Heatsink problems, how to solve WA5SNZ 46 Jan 74 +
Hf synthesizer, higher resolution for N4ES 34 Aug 78 +
Hybrids and couplers, hf W2CTK 57 Jul 70
Hybrids and couplers, hf Short circuit 72 Dec 70
Hydroelectric station, amateur K6WX 50 Sep 77 +
Hyperbolic navigation (letter) Burhans, Ralph W. 6 Feb 81 +
Identifying Kerchunkers and Other Interference K9GDF 74 Dec 89 +
Impedance bridge measurement errors and corrections K4KJ 22 May 79 +
Impedance matching: a brief review WD4C 49 Jun 84 +
Impedance measurements using an SWR meter K4QF 80 Apr 79 +
Impedance-matching systems, designing W7CSD 58 Jul 73 +
Inductance or capacitance, a method for measuring (HN) W2CHO 68 Jul 80 +
Infrared communications (letter) K2OAW 65 Jan 72
Injection lasers (letter) Mims 64 Apr 71
Injection lasers, high power Mims 28 Sep 71
Instant balun (letter) W8MQW 6 Aug 81 +
Integrated circuits, part I W3FQJ 40 Jun 71
Integrated circuits, part II W3FQJ 58 Jul 71
Integrated circuits, part III W3FQJ 50 Aug 71 +
Interference problems, how to solve ON4UN 93 Jul 78 +
Interference, hi-fi (HN) K6KA 63 Mar 75 +
Interference, rf W1DTY 12 Dec 70
Interference, rf WA3NFW 30 Mar 73 +
Interference, rf (letter) G3LLL 65 Nov 75 +
Interference, rf, coaxial connectors can generate W1DTY 48 Jun 76 +
Interference, rf, its cause and cure G3LLL 26 Jun 75 +
Intermittent reception due to lightning (HN) W2YW 39 Sep 88 +
Intermittent voice operation of power tubes W6SAI 24 Jan 71 +
Introduction to Waveform Generators- pt 2 K4IPV 82 Dec 89 +
Isotropic source and practical antennas K6FD 32 May 70 +
KWM 380 external control circuit (HN) WA2RUD 96 Dec 83 +
L-networks, how to design W7LR 26 Feb 74 +
L-networks, how to design Short circuit 62 Dec 74 +
Laser communications W4KAE 28 Nov 70
LC circuit calculations W2OUX 68 Feb 77 +
LED experiments W4KAE 6 Jun 70 +
Light-emitting diodes: theory and application WB6AFT 12 Aug 80 +
Lighthouse tubes for uhf W6UOV 27 Jun 69 +
Lightning location and detection VY1CW 25 Sep 87 +
Lightning protection for the amateur station K9MM 18 Dec 78 +
Lightning protection for the amateur station Comments, W6RTK, WB2FBL 6 Jul 79 +
Linear amplifier, 3CX800A7 K8RA 17 Aug 84 +
Linear tuning, a fresh look at (HN) W2OLU 74 Aug 80 +
Linear-amplifier cost efficiency W8MFL 60 Jul 80 +
lnductors, how to use ferrite and powdered-iron for W6GXN 15 Apr 71
lnductors, how to use ferrite and powdered-iron for Correction 63 May 72 +
Local-oscillator waveform effects on spurious mixer responses Robinson, Smith 44 Jun 74 +
Low cost linear design and construction W4MB 12 Dec 82 +
Low-pass filter, integrated circuit WB2KTG 59 Jan 85 +
Lowpass filters for solid-state linear amplifiers WA0JYK 38 Mar 74 +
Lowpass filters for solid-state linear amplifiers Short circuit 62 Dec 74 +
Lunar-path nomograph WA6NCT 28 Oct 70
Marine installations, amateur, on small boats W3MR 44 Aug 74 +
Matching networks, how to design Anderson, Leonard H. 44 Apr 78 +
Matching techniques, broadband, for transistor rf amplifiers WA7WHZ 30 Jan 77 +
Microprocessors, introduction to WB4HYJ, Rony, Titus 32 Dec 75 +
Microwave rf generators, solid-state W1HR 10 Apr 77 +
Microwaves, getting started in Roubal 53 Jun 72 +
Microwaves, Introduction W1CBY 20 Jan 72
Mini-mobile K9UQN 58 Aug 71 +
Mismatched transmitter loads, affect of W5JJ 60 Sep 69
Mnemonics W6NIF 69 Dec 69 +
Mobile theft deterrent: The Weekender W6WTU 81 Feb 87 +
Modifying the Trio-Kenwood TS930S WB9BXT 67 Apr 86 +
Monolithic RF amplifiers N6JH 22 Mar 86 +
More electronic units W1EZT 56 Nov 68
Multi-function integrated circuits W3FQJ 46 Oct 72
Multiplexing, the how and why of KH6N 60 Sep 81 +
Mysterious spur on 160 N3BEK 73 May 83 +
Mysterious spur on 160 Comments, K0KL, N3BEJ 95 Nov 83 +
Navigational aid for small-boat operators W5TRS 46 Sep 80 +
NE5205 wideband RF amplifier Gruchalla, Michael 30 Sep 86 +
NE5205 wideband RF amplifier Short circuit 72 Jan 87 +
Network, the ladder W2CHO 48 Dec 76 +
Networks, transmitter matching W6FFC 6 Jan 73 +
Neutralizing 572B final at 1500 watts output (HN) W2YW 63 Jun 84 +
Neutralizing small-signal amplifiers WA4WDK 40 Sep 70 +
New uses for old tuners W6WTU 25 Jan 88 +
Ni-cad battery charging (letter) W6NRM 6 Jul 80 +
Noise bridge for impedance measurements YA1GJM 62 Jan 73 +
Noise bridge for impedance measurements Comments, W6BXI 6 May 79 +
Noise cancellation circuit K1RGO 75 Mar 84 +
Noise figure, meaning of K6MIO 26 Mar 69
Operation upgrade: part 1 W6BNB 12 Sep 81 +
Operation upgrade: part 2 W6BNB 28 Oct 81 +
Operational amplifiers WB2EGZ 6 Nov 69 +
Optimum pi-network design DL9LX 50 Sep 80 +
Passive lumped constant 90-degree phase-difference networks K6ZV 70 Mar 79 +
PCB "threat" (letter) VE5UK 66 Sep 80 +
Peaked lowpass: a look at the ultraspherical filter W7ZOI 96 Jun 84 +
Personal message center AA4NX 44 Feb 90 +
Phase detector, harmonic W5TRS 40 Aug 74 +
Phase modulator, PLL (HN) VE3FHM 117 Jun 85 +
Phase-locked loops WB6FOC 54 Jul 78 +
Phase-locked loops, IC W3FQJ 54 Sep 71
Phase-locked loops, IC, experiments with W3FQJ 58 Oct 71 +
Phase-shift network, 90-degree, offers 2:1 bandwidth K6ZV 66 Feb 80 +
Phase-shift networks, design criteria for G3NRW 34 Jun 70 +
Photovoltaic cells: a progress report WD8AHO 52 Dec 83 +
Photovoltaic cells: a progress report Comments: K6KVX, WD8AHO, etal 10 Feb 84 +
Pi and pi-L networks W6SAI 36 Nov 68
Pi network design W6FFC 6 Sep 72
Pi network design Anderson, Leonard H. 36 Mar 78 +
Pi network design Comments Anderson, Leonard H. 6 Apr 79 +
Pi network design and analysis W2HB 30 Sep 77 +
Pi network design and analysis Short circuit 68 Dec 77 +
Pi network inductors (letter) W7IV 78 Dec 72 +
Pi networks, series-tuned W2EGH 42 Oct 71 +
Plasma-diode experiments Stockman, Harry 62 Feb 80 +
Polymer film transforms mechanical energy to electrical energy WA4KFZ 55 Dec 84 +
Power amplifiers, high-efficiency rf WB8LQK 8 Oct 74 +
Power dividers and hybrids W1DAX 30 Aug 72
Power FETS: trend for VHF amplifiers Peters, Daniel and W7PUA 12 Jan 84 +
Power speaker enhances mobile operation (weekender) K1ZJH 83 Jan 88 +
Power supplies, survey of solid-state W6GXN 25 Feb 70
Power, voltage and impedance nomograph W2TQK 32 Apr 71
Practically speaking: battery problems, pt1 K4IPV 62 Jul 87 +
Practically speaking: feedback K4IPV 60 May 88 +
Practically speaking: intermittents, pt.1 K4IPV 75 Nov 85 +
Practically speaking: intermittents, pt.2 K4IPV 79 Dec 85 +
Practically speaking: Overview of op amps- part 1 K4IPV 100 Nov 88 +
Practically speaking: overview of op amps- part 2 K4IPV 83 Dec 88 +
Practically Speaking: potpourri K4IPV 71 May 90 +
Practically speaking: repairing flood damage K4IPV 95 Oct 85 +
Prerecorded messages help the hearing impaired (HN) W2QLI 87 Sep 84 +
Printed-circuit boards, photofabrication of Hutchinson 6 Sep 71
Programmable calculator simplifies antenna design (HN) W3DVO 70 May 74 +
Programmable calculators, using W3DVO 40 Mar 75 +
Proportional temperature control for crystal ovens VE5FP 44 Jan 70 +
Pulse-duration modulation W3FQJ 65 Nov 72
Q factor, understanding W5JJ 16 Dec 74 +
Q systems W1IUZ 6 Nov 80 +
QRP operation W7OE 36 Dec 68
Quartz crystal resonators Boddaert, Peter 85 Feb 86 +
Quartz crystals WB2EGZ 37 Feb 79 +
Radiation hazard, rf W1DTY 4 Sep 75 +
Radiation hazard, rf Correction 59 Dec 75 +
Radio communications links W1EZT 44 Oct 69 +
Radio observatory, vhf Ham 44 Jul 74 +
Radio sounding system KL7GLK 42 Jul 78 +
Radio-frequency interference WA3NFW 30 Mar 73 +
Radiotelegraph translator and transcriber W7CUU, K7KFA 8 Nov 71 +
Ramp generators W6GXN 56 Dec 68
Rating tubes for linear amplifier service W6UOV, W6SAI 50 Mar 71
RC active filters using op amps W4YIB 54 Oct 76 +
RC active filters using op amps Comments, W6NRM 102 Jun 78 +
RC active filters using op amps Short circuit 94 Feb 79 +
Reactance problems, nomograph for W6NIF 51 Sep 70 +
Relay, inexpensive automatic send/receive W0PBV 40 May 82 +
Remedy for RFI (comment) K6WX 9 Jul 88 +
Repeater controller, microprocessor-band KB0CY 12 Mar 82 +
Resistor performance at high frequencies K1ORV 36 Oct 71 +
Resistors, frequency sensitive (HN) W8YFB 54 Dec 70
Resistors, frequency sensitive (letter) W5UHV 68 Jul 71
Resonant circuits WD4C 12 Apr 84 +
Rf amplifier, wideband WB4KSS 58 Apr 75 +
Rf autotransformers, wideband K4KJ 10 Nov 76 +
Rf chokes, performance above and below resonance WA5SNZ 40 Jun 78 +
Rf exposure WA2UMY 26 Sep 79 +
RF filters, Build narrowband WB4EHS 10 Mar 86 +
RF filters, Build narrowband Short circuit 36 Jun 86 +
Rf interference, suppression in telephones K6LDZ 79 Mar 77 +
Rf power distributor, the W3BYM 48 Dec 81 +
Rf power transistors, how to use WA7KRE 8 Jan 70 +
Rf power-detecting devices K6JYO 28 Jun 70 +
Rf radiation, environmental aspects of K6YB 24 Dec 79 +
Rfi cures: avoiding side effects WB9TQG 52 Sep 81 +
Rfi cures: avoiding side effects Comments WB7SYB, WB9TQG, VE2QO 6 Dec 81 +
RFI, solving the problems of W2YW 124 Sep 84 +
Rotary-dial mechanism for digitally tuned transceivers K3CU 14 Jul 80 +
Russian Woodpecker, the: a continuing nuisance KR7L 37 Nov 84 +
Safety circuit, pushbutton switch (HN) K3AFF, WA1FHB 73 Feb 77 +
Safety in the ham shack Darr, James 44 Mar 69
Satellite communications, first step to K1MTA 52 Nov 72
Satellite communications, first step to Added notes (letter) 73 Apr 73 +
Satellite picture transmission, recording W6CCN 6 Nov 68
Satellite signal polarization KH6IJ 6 Dec 72 +
Semiconductor curve tracing simplified W6HPH 34 Aug 80 +
Signal detection and communication in the presence of white noise WB6IOM 16 Feb 69 +
Signal-strength, measuring W2YE 20 Aug 80 +
Silver/silicone grease (HN) W6DDB 63 May 71 +
Simple circuit prevents amplifier control relay failure (HN) NO7G 30 Feb 90 +
Simple eeprom programmer WA2IHE 40 Jan 90 +
Simple formula for microstrip impedance (HN) W1HR 72 Dec 77 +
Single-tuned interstage networks, designing K6ZGQ 59 Oct 68
Smith chart, how to use W1DTY 16 Nov 70
Smith chart, how to use Correction 76 Dec 71 +
Solar activity, aspects of K3CHP 21 Jun 68
Solar energy W3FQJ 54 Jul 74 +
Solar power for your ham station NH6N 14 Dec 84 +
Solar power for your ham station Short circuit 145 Mar 85 +
Solid-state amplifier switching (HN) WB2HTH 75 Aug 80 +
Sorting and inventory of standard resistor values, computer program for WA6SWR 66 Jun 81 +
Speech clippers, rf, performance of G6XN 26 Nov 72
Speed of light (letter) WB2AOT 6 Apr 80 +
Speed of light (letter) W4MLM 6 Aug 80 +
Speed of light (letter) KL6WU 67 Sep 80 +
Speed of light, observations on, through the metric system W7ITB 62 Jan 80 +
Square roots, finding (HN) K9DHD 67 Sep 73 +
Square roots, finding (HN) Increased accuracy (letter) 55 Mar 74 +
Staircase generator (C&T) W1DTY 52 Jun 76 +
Standing-wave ratios, importance of W2HB 26 Jul 73 +
Standing-wave ratios, importance of Correction (letter) 67 May 74 +
Stress analysis of antenna systems W2FZJ 23 Oct 71 +
Super beep circuit for repeaters KP4AQI 48 Jul 81 +
Switchable bandwidth crystal filter N2DCH 22 Feb 90 +
Synthesizer design (letters) WB2CPA 94 Nov 77 +
Synthesizer system, simple (HN) AA7M 78 Jul 79 +
T coupler, the (HN) K3NXU 78 Nov 80 +
Talking clock (letter) N9KV 75 Feb 80 +
Talking digital readout (letter) N5AF 6 May 80 +
Talking digital readout for amateur transceivers N9KV 58 Jun 79 +
Temperature sensor, remote (HN) WA1NJG 72 Feb 77 +
Tetrodes, external-anode W6SAI 23 Jun 69 +
The Guerri report W6MGI 124 Jan 85 +
The Guerri report W6MGI 158 Mar 85 +
The Guerri report W6MGI 157 Apr 85 +
The Guerri report W6MGI 124 Jul 85 +
The Guerri report W6MGI 124 Aug 85 +
The Guerri report W6MGI 140 Nov 85 +
The Guerri report: a busy signal from space W6MGI 165 May 85 +
The Guerri report: computer technology W6MGI 54 Nov 84 +
The Guerri report: computer technology Short circuit 8 Dec 84 +
The Guerri report: predicting equipment failure W6MGI 125 Jun 85 +
The Guerri report: RF effects the good and the bad W6MGI 142 Oct 85 +
The Guerri report: RF power supplies achieve high efficiency W6MGI 157 Sep 85 +
The Guerri report: superchips come of age W6MGI 126 Feb 85 +
Thermoelectric power supplies K1AJE 48 Sep 68
Thermometer, electronic VK3ZNV 30 Apr 70
Three-phase motors (HN) W6HPH 79 Aug 68
Thyristors, introduction to WA7KRE 54 Oct 70
Timer, electronic (HN) W9EBT 65 Mar 82 +
Toroid coils, 88-mH (HN) WA1NJG 70 Jun 76 +
Toroidal coil inductance (HN) W3WLX 26 Sep 75 +
Toroids, calculating inductance of WB9FHC 50 Feb 72
Torolds, plug-in (HN) K8EEG 60 Jan 72
Transistor amplifiers, tabulated characteristics of W5JJ 30 Mar 71
Trig functions on a pocket calculator (HN) W9ZTK 60 Nov 75 +
Tube shields (HN) W9KNI 69 Jul 76 +
Tubes, surplus (letter) W2JTP 6 Aug 80 +
Tubes, surplus (letter) Sellati 66 Sep 80 +
Tuning, Current-controlled K2ZSQ 38 Jan 69 +
TV sweep tubes in linear service, full-blast operation of W6SAI, W6UOV 9 Apr 68
TVI locator W6BD 23 Aug 78 +
Two-tone signal generator YB9ATA/WA7AQN 25 Feb 86 +
Two-tone signal generator Short circuit 45 Apr 86 +
Two-tone signal generator Short circuit 36 Jun 86 +
Understanding computer-generated RFI NU1N 75 Mar 90 +
Understanding over-the-horizon radar NU1N 9 Feb 90 +
Understanding over-the-horizon radar Comments, AG4R 6 Apr 90 +
Understanding over-the-horizon radar Comments, AD1G 9 May 90 +
Using CAD to rewind transformers W6WTU 83 Dec 86 +
Using ICOM IC-32AT As a Crossband Mini-Repeater KW5O 41 Dec 89 +
Using spreadsheet programs for amateur radio projects AD1B 95 Dec 86 +
Using the Spectrum Monitor Comments: KI6DW 9 Nov 86 +
Vacuum-tube amplifiers, tabulated characteristics of W5JJ 30 Mar 71
Varactor tuning tips (HN) N3GN 67 Feb 81 +
Variable-inductance variable frequency oscillators W0YBF 50 Jul 80 +
Very sensitive LF or HF field-strength meter K1RGO 67 Sep 86 +
VHF noise bridge OE2APM/AA3K 10 Jul 86 +
VHF/UHF world: the VHF/UHF primer, an introduction to filters W1JR 112 Aug 84 +
VLF dip meter, no-adjust bias for (HN) WB3IDJ 69 Jul 80 +
VMOS on 1750 meters K1RGO 71 Oct 83 +
VSWR bridges K2LB 37 Mar 86 +
Warning lights, increasing reliability of W3NK 40 Feb 70
White noise diodes, selecting (HN) W6DOB 65 Apr 76 +
Wide-range RF power meter KA8OBL 24 Apr 86 +
Wideband amplifier summary DJ2LR 34 Nov 79 +
Wilkinson hybrids WA2EWT 12 Jan 82 +
Wind direction indicator, digital W6GXN 14 Sep 68
Wind generators W3FQJ 24 Jul 76 +
Wind loading on towers and antenna structures, how to calculate K4KJ 16 Aug 74 +
Wind loading on towers and antenna structures, how to calculate Added note 56 Jul 75 +
Y parameters, using in rf amplifier design WA0TCU 46 Jul 72


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