Motorola Minitor pager

(not Minitor II) on 46.18 MHz, no PL, no tones, comes with standard charger and batteries. Great for SKYWARN spotters or anyone else who wants to monitor that frequency all the time without monitoring hundreds of others. Excellent condition. $20 + shipping.

RARE ITEM: Motorola Minitor pager

(not Minitor II) on 52.525 MHz, no PL. Allows you to monitor the national simplex calling frequency for sporadic E openings on the 6 meter ham radio band wherever you are, or just listen for your ham pals to call you. Comes with batteries and charger. Refurb condition. $30 + shipping

weather pager

This is a Motorola Minitor (not Minitor II) pager on 162.400 MHz. Makes a great SKYWARN pager. It monitors the National Weather Service transmitter in your area all day long without making a sound until it hears the severe weather alert tone. Then it pages you and then lets the bulletin come through automatically for you to hear. Hit the reset button and you're back to silent monitoring. Press and hold reset button anytime to hear audio temporarily. Worked great last time it was tested, but I am no longer able to test these units since the pager batteries went bad. There are generic batteries available at these locations:

batterysupplier.com

Amazon.com

You could also contact the following companies and ask if they have the needed batteries:

G and G Communications

PW Service

Comes with charger/audio amplifier. $40 + shp.

Same as unit described above, except on 162.525 MHz, originally assembled to receive transmissions from the Norwich, NY NWR transmitter. $40 + shp.

Click here if you don't know which frequency is in use in your area.

Motorola Minitor pager UHF receiver boards

These are for the Minitor...not Minitor II, board model # NRE6114AB, crystalled on 462.975 MHz (med 10), quantity 6, worked when taken out of service, $5 each.

Motorola Minitor standard chargers

These are single unit chargers for Minitor I pagers (not Minitor II), color white, work fully, 7 available, $10 ea.

computer book set

This is a set of beginner-level softcover books--a textbook and a workbook--entitled PROBLEM SOLVING WITH COMPUTERS by Greg W. Scragg. The books are all about solving problems with language-independent design tools. "Problem Solving with Computers represents a unique introduction to computer science. Although it was written for students who may take a single service course, this book focuses on the central topics of computer science as problem-solving tools. Computer applications are introduced as specific tools that support this problem-solving process." Books are in very good condition and the workbook is unused, ISBN 0-86720-495-8 for the text, and 0-7637-0352-4 for the lab manual. U.S. List prices are $59.95 and $33.95 (total $93.90), paid $81.50 new, my price $15 + $3 for book rate shipping, lower 48 states only, please pay by USPS Postal Money Order.

used college electronics textbook TITLE     Digital Fundamentals EDITION     7th AUTHOR     Tom Floyd PUBLISHER     Prentice-Hall, Inc. COPYRIGHT     2000 ISBN     0-13-080850-4

This is a hardcover book. It is in excellent condition--there is no writing and no highlighting in it. "Digital Fundamentals, with its unparalleled coverage of applications and troubleshooting, has taught students how to become successful electronics technicians and technologists for two decades. Now in a new edition, this longtime best seller by Tom Floyd offers today's students complete hands-on coverage of digital circuits, including extensive coverage of Programmable Logic Devices." Topics include: binary, hexidecimal, octal numbers; binary coded decimal (BCD); parity; logic gates; Boolean algebra; combinational logic; programmable logic devices (PLD arrays, PALs, GALs); flip-flops; latches; edge-trigger devices; counters; shift registers (serial/parallel inputs and outputs); memory; DACs/ADCs; CMOS + TTL circuits. Book has about 828 pages and FREE CD never used. Amazon new price $115.00, my price $30.00 + book rate shipping at 4.7 lbs., lower 48 states only, please pay by US Postal Money Order only.

used college math textbook TITLE     Elementary Linear Algebra EDITION     4th AUTHORS     Ron Larson & Bruce Edwards PUBLISHER     Houghton Mifflin Company COPYRIGHT     2000 ISBN     0-395-96717-1

This is a hardcover book. It is in very good condition--there is no writing and no highlighting in it. Main topics include: matrices, determinants, vector spaces, inner product spaces, linear transformations, eigenvalues, and eigenvectors. Paid $100.50 new in fall 2001, my price $10.00 + book rate shipping on 2.25 lbs., lower 48 states only, please pay by US Postal Money Order only.

Radio Shack mobile scanner antenna

model 20-032, magnetic base for easy removal, in storage for years, VG condition. This is the popular 3-section whip antenna. I replaced the top section with a longer one from a CB antenna for improved performance on low band (25-54 MHz) and it sure worked! Has 16 ft coax attached with Motorola connector on the end. FREE BNC ADAPTOR available incase your scanner has a BNC antenna jack. $10 plus shp.

lot of DIP ICs

QTY  TYPE     DESCRIPTION

2    74LS00   quad 2-input NAND
1    74LS02   quad 2-input NOR
1    74LS03   quad 2-input NAND (O.C.)
1    74LS04   hex inverter
1    74LS08   quad 2-input AND
1    74LS20   dual 4-input NAND
1    74LS42   BCD-to-decimal decoder
4    74LS76   dual JK flip-flop w/ preset & clear
1    74LS86   quad EXCLUSIVE-OR
1    74LS90   decade counter
1    74LS95   4-bit parallel access shift register
1    74LS151  8-input multiplexer
1    74LS193  binary up/down counter w/ clear
1    4001     quad 2-input NOR buffered gate

coax

used Times Microwave LMR-400 coax lengths for sale: This is high-grade 50-ohm VHF+ coax. There are reverse polarity N connectors installed (also called RP-N) which do not fit any of the amateur radio N sockets here at home. The center pin is not a pointed solid pin, but rather a hollow cylinder shape, about the same diameter as the center pin on most female N's (and that's why they won't connect to each other). See photo. These connectors are manufactured by Kings Electronics with a part number of 2225-1-9 which I was not able to find on their website (perhaps it got discontinued). Since these connectors likely cannot be used for ham radio, I am not charging for them, although they are professionally installed with heat shrink tubing. The intended use of these coax lengths is to cut off the connectors and make your own jumpers, unless you can use them on legacy wireless Internet hardware (WiFi). These cables are in very good to excellent condition, and I verified that they have no continuity between center and shield. They were used at my workplace for an indoor 802.11a WiFi system on 5 GHz years ago and stayed in dry storage since. Lengths are

2.5 ft $ 2 + $4 shipping
5   ft $ 4 + $5 shipping
18  ft $13 + $6 shipping

coax

This is a roll of new, never used Vextra V621 75-ohm RG6 coax. This is the remainder of a 1,000-ft spool. There is about 50 feet still available. This coax is rated to 3 GHz. Solid center conductor, 18 AWG, with foam dielectric. Made in the USA. $15.00 (shipping already included).

loss chart

dB/100 ft nominal	freq MHz
1.92	100
3.73	400
5.95	950
7.49	1,450
8.43	1,800
9.35	2,200
9.97	2,500
10.92	3,000