Flood Area

Reprinted from the Wheeling AVn v Register> March 6t 972. As the death toll mountsand hope lor the survival ol the missing lades, amateur radio operators manning emergency communications in the Logan County disaster area are called to check the official death list with increasing frequency. Since the Buffalo Hollow Creek Hood tragedy 10 days ago, hundreds of ham radio operators have assisted in maintaining a precarious communications link with the devastated area and the outside world. l or C...

Info

All IC's are supplied in 8-, 14-, 16-, or 24-pin DIP Dual-in-Line Plastic package, except for NE536, JJE537, NE540, and EE540 which come in T0-> package. We qivc FREE data sheets upon request, bo ask for those data sheets that you NEED, even for those IC's that you are not buying On orders over 10.00 we'll send you a new 270-page COMPLETE TTL IC data book FREE, Or, you may obtain 3 new 24 0-page LINEAR data book instead. Orders over 520.00 will receive both books. Orders over 50.00 will...

Transistor

E The 73 DX handbook has every DX aid you could hope for, . lQSL Bureaus, postage rates worldwide, DXCC and WTW country lists and record pages, maps of many areas of the world with prefixes, plus a complete walf-sized world map with each book It is profusely illustrated with pictures of many of the top DXers, plus articles on working DX on the different bands. There are great circle bearing maps and charts, and m ore, , .more . . .more. F The FM Anthology has reprints of all the articles and...

Worlds Largest Selection Of

6078 Brand new Nemco 9 NE-9M monitor (similar to picture). Ideal to go with above cameras. Completely solid-state, portable operates from either 120VAC 60 cs. or 12VDC. Video input only. 10 11 16H 9 5 8W 9 9 16D, Wt. 12,6 lbs. Regular Price 229.95 - Spring Special 149.95 6079 - KOYO mode JL-451 CCTV camera. Brand new, solid state using type 7262A vidicon with wide range ALC, approx, 550 lines video resolution w both RF & Video outputs. Power Supply 117V 60 cs, 13V A, 10 3 8x5 3 8x3 9 16 Wt...

Type A

Specify crystal type, equipment make and model desired frequency, transmit or receive. neW 4 leader in the commercial V H. F Communications Field . , Now available for Amateurs. When you double your power you expect a more solid GSO . . . more ability to cut through and to hear and be heard, With Larsen Antennas you get 3db gain or better. Mobile to mobile (no repeater) that's a 6db system gain . . , equivalent to quadrupling your power. In no other way can you get so much for your money. High...

Hhhm W Gladding

R t fR WSCl I 'l R. 25 WATTS OUTPUT. 6 channels complete with xl ils foj 146.34 146,76 md 140.94 146.94, low power position, completely scp j-rait xmit-rec xLii switching built in 2 tk supply, (Amaleur nei S249.9S) Ol H LOW INTRODUCTORY PRICE 212.50. With mulching AC supply I reg. 299.95) S255. Write for literature. Ham-M s 99.00. AMATEUR-WHOLES ALE-ELECTRONICS & 817s w 129 terrace miami h l 33 l 56 305 233 3631 MOTOROLA RCA FAIRCHILD NATIONAL

Palmer Tester

9612 Raytown Rd., Kansas City, MO 64134 fiie Original Test-Aniw rs eijr manual that prepares you at home for FCC First and Second class licenses. Includes UpDated mj tiple choice tests and key cherifltic diagrams. PUJS - Seif-Study Ability rest. -- ONLY 9.95 Postpaid RFI Fl 1 tan, 600 oHb CO 600 q1 m SI , 5 PlUK-in Tic 1 ft v,, SIGH Cold Cout. DI ITT IT. ch tn Si . pc k rn, 1Q aha ltp., I 1lOctl for GENERAL RAtUO J20fe amp . Polt taplifier UI.Ol F. C, C rd Pulirr, TTTCttlflt 11731, in fcor lev...

Sell Your Gear For Big Cash Dollars Or New Fm Etc Equipment

We have immediate customers for your old equipment in any condition. We'll pay guaranteed highest price, shipping, insurance, etc. We'll pay in 24 hours, write or call collect for our high offer. P.S. We'll trade or swap equipment too. URGENTLY NEED THE FOLLOWING AN UPA-38, AN GMD-1. NAVY AN URC-9, Radio Set AN S RC-20, 21 AN SRD-7 D.F. AN URD-4 D.F. AN VRC 12, RT-524 VRC R-442 VRC MX 2799, MX 6707 and Accessories. RT-505 PRC-25 AN PRC-77 AN VRC-24 T-302A, AM-912,3 R-417A, AM-914.B PP-685A amp...

Amateur Radio

W4ZBE 114 Rollins St. Orlando, Fla. 32804 For a quarter of a million years, since man first stood erect on his hind legs, he has gazed with wonderment into the mysterious universe using only his eyes to receive the tiny bits of light energy arriving from the distant parts of space. In the last one hundredth of one percent of time, in the history of mankind, man has used devices to aid his visual observation of the universe. The refracting telescope by Galileo was the first....

Mars

Lamoniva W7DX special to 73Magazine Well it took a long time but OSCAR Mariner I is now on the planet Mars arid operating well, As you recall, space became available for I he OSCAR package on the last unmanned NASA mission to Mars, Dr. Bernard Wizenhoff called OSCAR headquarters and told the group the good news. He said, Gentlemen, we are launching Mariner 34 to the planet Mars when the next launch window is available for the shot. It will be between Januan 1 1 and 18th. We will...

Solid State Qrp Projects

Highly popular Editors and Engineers books from Sams give amateurs everything they need to know about radio operation and technology. They're authoritative, clear and easy to follow. You'll want them for your library. Famous E amp E RADIO HANDBOOK 18th Edition By William I. Orr, W6SAI The completely updated electronics industry standard for engineers, technicians and advanced amateurs. Shows how to design and build all types of radiocommunications equipment. Includes ssb design and equipment,...

Ryukyu Islands

The Ryukyu Islands will revert to the control of the Government of Japan effective 1501 GMT, 14 May 72 lt 00 hours, 15 May 72, Okinawa Japan time . Effective with reversion of the Ryukyu Islands to the Government of Japan, the amateur radio call sign prefix KRb will no longer he authorized for use by U.S, Forces personnel stationed in the Ryukyu Islands, The call sign prefix KA6 has been authorized for these personnel effective with reversion. In addition, third party traffic, phone patch...

Fm Repeater Handbook

The definitive work on amateur f-m repeaters Includes Preparing and obtaining sites for repeaters How to build a repeater Repeater applications an f-m repeater directory. No. 24008 6.95 AMATEUR TESTS AND MEASUREMENTS By Louis M. Dezettel, W5REZ Shows how to accomplish virtually all performance tests on amateur transmitters, receivers and antennas . . and how to make required adjustments. No, 24007 5,50 HAM AND CB ANTENNA DIMENSION CHARTS By Edward M. Noll, W3FQJ Tabulates dimension data in feet...

N Pg Ns Pg

N-S N-S N-S P-S NtS N-S S-N N-S P-S P-S N-S Use Sw VHF Pwr Pwr Sw Sw . Sw Sw Sw Price 4 1.00 4 1. 0 3 1,00 1.00 3 1.00 6 1.00 3 1.00 3 1.00 3 1.00 1,50 50 75 75 50 USED TEST EQUIPMENT VARIABLE CAPACITORS AH checked amp in excellent operating condition. G-R650-A Impedance Bridge 100.00 Brush BL-202 2-channei chart recorder , , . 40.00 Brush BL-905 Amplifier, single channelMatches BL-202, 20.00 Brush BL-932 OC Amplifier for BL-202 . - 27,50 j Brush BL -320 Universal Analyzer, DC amp. amp Brush...

Fm Repeater Circuits Manual Hadrbound Edition

This 300-plus page book has material on basic FM repeaters, national standards for FM repeaters, carrier operated repeaters, tone decoders for repeaters, controlling repeaters with tones, improving repeater intelligibility, minimizing desensitization, solving intermodulation problems, digital identification, the WB6BFM identifier, a computer-optimized digital identifier, WAOZHT design data, the Curtis identifier, the K6MVH autopatch, the Zero DKU autopatch, the touchtone autopatch, setting up a...

Alphanumeric Segment Readouts

A Poly Pak exclusive Two different types. Both compatible with SN7446, SN7447, SN7448, SN747S. SN7490 and SN74192 iC's, Both with decimals, O to 9 numerals and 10 letters. With specs S, hookups. INCANDESCENT Fits Into IB pin dual rn line aochet. Life 250,000 hours. Delivers 7QO-ft Lamberts brltenes with 5 volts mils per segment. Characters .362 H. .197 W SOCKET FOR AK VE - 50c ea. for printed circuit board or socket, Life 100,000 hours. Delivers 6,000-ft. Lamberts with 5 volts 23 mils per...

Standard Sr-c826m

Standard C826m

W6AM doesn't have to, since he began using our professional quality VHF-FM 2 meter transceiver with exclusive Astropoint. The precise and powerful Astropoint system actually blocks out all interference. So when oe e of the nation's number one hams is having a 2-way conversation he won't have unwanted interference. Astropoint is featured on all standard transceivers including the rugged, 12 channel SR-C826M. It's not only a compact mobile but even fully portable with the addition of a battery...

The Vanguard Frequency Synthesizer

Size VA HIGH X 3 5 8 WIDE X 8 LONG. PRICE S119-95 ppd. NOTE NY State residents add sales tax. 1000 channels from one crystal yes, that's one thousand selectable every 10 KHz, from 140.00 to 149.99 MHz, Better thgn .0005 5 parts per miflion from 10 to 60 C down to -30 C with accessory heater available later. Thumbwheel switches with digital readout for fast selection, Uses a super precision crystal reference source operating at 5 MHz, for easy checking with WWV. RF output is...

Oje

Button and to hear the correct letter emerge from the monitor. Finger placement, even for a hunt-and-peck typist, becomes easy and rhythmic. Adjustment of the keyer speed to a comfortable rate coupled with a relaxed typing speed still allows the hunt-and-pecker to send perfect CW at speeds up to twenty words per minute. The Pickering is heavily weighted and it will not slide across the operating desk. You could even use it sitting upon your fap if you wished to use CW while mobile. After...

Customized Dx Bearing Chart

This is not available on the subscription bonus because it is provided purely as a service of 73. An amateur who works for a big computer company has a program which permits him to plug in your location and have it print out the bearings of all of the countries of the world from your shack. Once you have this list you will use it for every DX contact. The chart gives the bearing and distance to all major cities and countries. Be patient when you order for these have to be run through in groups...

Tempo Lw Dummy Load Wattmeter

The Tempo L W 1 500 load-wattmeter offers typical Tempo price-performance va ue. Designed for amateur or commercial use, the LW1500 is completely portable. An internal D ceil battery powers the overheating warning light so no AC connections are necessary. The built-in handle and light weight make the load convenient for desk, bench, auto or field testing. Price 119.00, Truly mobile, the Tempo fmp-3 watt portable gives amateurs 3 watts, or a battery saving Vs watt, FM talk power anyplace at...

The Larsen

After a few months of FM'ing, talking with FM'ers, and seeing two meter mobiles by the gross, the eye gets used to seeing a disproportionate number of the Larsen antennas on cars. They stand out immediately to the eye of the FM amateur for the simple reason that they are probably the most inconspicuous two meter antenna there is. Larsen came into the ham market via the two-way commercial field, as did repeater two meter operation. Naturally these old time two-way men brought along the antennas...

Khv

In the mid 1930s wet W9PRH, W9STT and W UJC, lived within a block of each other in Bismarck, North Dakota As time we on each moved away and we lost l rack of one another. W9RRH eventually ended up in California. W9SIT also was in California lt Los Angeles . W9UJC moved to Billings, Montana. W gt PRII let his call and license expire, W9STT became WiiWKY, W9UJC became W7FKW. WftWKY and W7FKW established written communications and kept m touch by Christmas cards and notes over the vears. In...

Syncart Transponder

3 week ham oriented tour of Copenhagen, Berlin, Moscow, and Amsterdam. 700.00 for single, 1300.00 for couple traveling together includes - air and ground transportation, lodging, breakfasts, hamfestsand banquets. Here's your chance of a lifetime to realize the amateur radio operator's dream of touring the great European capitals, yet not missing out on valuable hamming time. Think of it sending CQ's from Rembrandt's bedroom - contacting rare DX from the top of Tivoli's highest roller coaster -...

Vdc

Works on iocai broadcast stations. Amuse the Jr. op. Circuit courtesy Calectro Handbook L J is a ferrite variabie antenna coif fCa ectro D1-S4J . D1 is and signal diode Calectro K4-550 . k -may be needed if trimmer will not zero-beat, add in 30 pf steps. Two meter crystal oscillator. The transmitter crystal is used, the netting capacitor is adjusted so that the crystal is zero-beat with someone who is considered as being on frequency. Then the osciJ-lator may be used to...

Block

An ancient wire wound, open type potentiometer was scrounged from the junkbox and placed across the microammeter terminals. This was adjusted until both meters read the same. The ammeter was then removed and the dc line closed. A 10 foot piece of No. 18 insulated wire was then connected to the negative battery terminal. This was guided through the cable hangers and through a convenient small hole in the firewall where it was connected to one terminal of the...

Contents

17 SSTV 21 6 Meter Mobile Transmitter Carl Martens 27 Quick Band Change Mobile Antenna W4LLR 32 Audio 36 73 Tests the Larsen Antenna W2NSD 1 Very effective 5 8 wave mobile FM antenna, 37 How to Get the Stuff into the House W200J 39 Anti CW RTTY 73 is NOT antt-CW. 45 Extra Class 53 A Modern VHF Frequency Counter K20AW 62 OSCAR Mariner on Mars W7DXX This should have run fast month, 65 TV Sync 74 Radio 85 The Past is Prologue W3UCT 93 IMoise and Receiving Antennas W2EEY Noise, alas, is the...