Armed Forces

Naval Academy Amateur Radio Club wili be operating special stations to commemorate the Armed Forces Day Communications Test, in the past this operation has been very succesful, resulting in a great number of hams receiving the colorful QSLs commemorating the occasion. The test will be on May 18, 1974, Operation will be on 4045, 7385 and 13975.5 kHz on LSB and USB on 20m, using the call N0NNN, In addition, the call WU3SNA will also be used on 3930, 7260 and...

Info

The camera will focus down to 1 4 through a special vidicon movement assembly thus giving full screen reproductions of small items like ICs and postage stamps, with sharp definition. Also included is a built-in video inverter and bar gerenator (Flip a switch and either function is initiated immediately.) The camera outputs with either Fast or Slow Scan TV, which is quite handy during camera setups. Incidentally, Venus also now has a vertical retrace modification for their SS 2 monitor, which...

Qoj

Fig, 6, rf stages for 2 meter FM using the +C CA3I02E+ L2 to resonate to 2m. no trouble. Where you use a long cable, with perhaps a 1 8th wave or so standing on it (or in it such as 22,56 cm) you will have to work a little with C3 and C4, Again, the test set up of Fig. 5 will do the job for you, allowing you to measure relative values, or even actual microvolts if you calibrate the infinite attenuator against a known micro-volter) and listen at the same time for noise, unwanted spurious,...

Srrc Hmfst

The SRRC Hamfest will take place June 2, at a new sight - the Bureau County Fairgrounds, Princeton IL (It has formerly been held in Ottawa )L). Easy access Rtes. 80 - 6 - 29 - 34. Advance registration Si.50 before May 20, S2 at the gate. For more information write G, E. Keith W9QLZ W9MKS, RFD 1, Box 177, Oglesby IL 61348. The 20th Annual Breeze Shooter's Hamfest, Western Pennsylvania's largest, will be held on Sunday, May 19, 1974r at White Swan Park (Parkway West, 4 miles East of the Greater...

Spacematic B

The SWITCH ABLE Keyer eight keyers in one Selectable dot dash memories* and character word spacing. The perfectly-timed code sent by the SM-21B is as easy to copy as Tape Code, and it gives the sender a distinguished professional fist. When you buy the Space-Matic, you buy a keyer for keeps, No need to trade next year for another keyer with additional features. They are all here today in the SPACE-MATEC 21B1 Is your tone decoder having problems due to Input signal variations If so, eliminate...

Electronics Company

FOR RUSH ORDERS CALL TOLL-FREE 800-527-4642 (In Texas call 214*348-8800) The HAL ID-1A repeater identifier was designed and engineered for commercial service, in compliance with FCC identification requirements. But its price is so attractive that radio amateurs interested in FM are buying it. too. The heart of any repeater identifier is its Read-Only-Memory. And inside the HAL ID-1A is a unique ROM one you can easily re-program yourself, should you need to change the call sign. The ID-1 A's ROM...

Bassett Vacuum Trap Antenna System

Complete packaged multi-band antenna systems employing the famous Bassett Sealed Resonators and Balun from wh ch air has been removed and replaced with pure helium at one atmosphere. Operating bands are indicated by mode designation. The famous sealed helium filled Baton . . . employed with the DGA Series Antenna Systems. Solderiess center insulator and easily handles more than full legal pvwer while reducing unwanted coax radiation. Equipped with a special 0-239 type coax connector and...

Schottky Diode Spec Sheet

A power Schottky diode, believed to be the first such device rated for a junction temperature of 1253C and available in production quantities, is described in a spec sheet available from TRW Semiconductors, The device, designated SD-51, is rated at 60A average forward current with a Forward voltage of 0.6V at a junction temperature of 125' C. The unit features a blocking voltage of 200 milliamps at a case temperature of 125 C at 35V. Reverse recovery time in inverter circuits is less than 10...

Prescaler Model Pd

Mudei PD 301 is a 300 MHj prescaler designed to e*tend Ttie range ot yogi counter ten time*. This jjrescdler has a built in prearnp with a wnsiiivtTv ot 50 mV at IbOMH lOOmV ,ii 260MH , 7b mV ai 300 MHz. The 95H90 scaler is rated at 320 MH-r To insure enough drive for aM counters, a post imp. was htnH-m, Thir pteamp has a self contained power supply regulated at 5 2V + 08 Input 50 Ohms. Output H- Z All preset s jft- shipped in a 4 by 41 bv 1 tjbmtiL All are wired and calibrated.

Cassette A Success

After seeing your advertisement and reading your editorial regarding the use of your cassette and tape in learning the Morse Code and trying to study the code via other means, thought that your cassette and tape would be an easier way of learning. So, I ordered the cassette and tape and very readily learned the code and passed the test at 5 wpm and then went on to obtain my Technician's license. As a result, f now hold the call of WB90AJ. If it had not been for the use of the cassette and tape,...

Boat Anchor Specials

You con use these RCA models in three ways 1. As a mobile on six or ten meters. Tune up hints are shown on page 77 of the issue of 73, Civil defense volunteers take note, these are ideal for low communications, 2. As a base station - take out the strips and hook up a power supply, 3. As a boat anchor-this requires rope not supplied by us . RCA CMF-100 dynamotor power supply 100 watts out RCA CMF-55 dynamotor power supply 55 watts out RCA CMF-40 vibrator power supply 40 watts out Link 6000...

New Fet Multimeter

Sencore has introduced a new unit to its Ail-American made line of multimeters, the FE27 Big Henry FET Multimeter. Big Henry was designed to include protection against the mechanical and electrical hazards of everyday service. The rugged molded acrylic case, backed up by vinyl-clad steel, is virtually indestructible. A spring loaded jewel meter movement has been specially designed to withstand the shock of a ten-foot drop. Internal protection of the sensitive circuitry is provided on all...

Deluxe Receiver Preamps

Specially made for both OLD and NEW receivers, The smallest and most powerful single and dual stage preamps available. Bring in the weakest signals with a Data Preamp. the most powerful antennas under the sun' New, from the inventors of wideband verticals Pack some punch1 AH the omnidirectional performance of Hy-GainTs famous 14AVQ WB plus 80 meter capability Unrivaled performance, rugged extra heavy duty construction, and the price you want all in one powerful package Automatic switching on...

Ic

709 Popular OP AMP iOlP TO-5 .39 723 Adjustable Voltage Regulator LHP T0 6 .75 741 Freq. Compensated OP AMP DIP TO 5 MINI DIP .45 747 Dual 74 OP AMP DIP .95 LM305 Postiue Voiiage Regulator jTO 5 125 MCI458 Dual 74 OP AMP MINI-DIP .95 Assorted Lirears 741 709 723, etc. 4 2,00 2N4416 TYPE RF Amplifier to 450 MHt TO 72 2 S1.00 2N548G TYPE RF Amp to 450 MHi plastic TO-lOfil 3 .00 2N51G3 TYPE Gen. Purpose Amp S Sw TO 106 2N4091 TYPE FIF Amp ft Switch TO 106 Asson, RF amp GP FET's. 2N5163,2N548G,...

Solid State Tuneable

The new ALPHA TT-88 Two Tone Sequential Decoder will respond to any two standard tone codes such as are used in Motorola, General Electric or Bramco type two tone sequential selective calling decoders and is fully compatible with these systems. The TT-88 has several exceptional advantages over all other selective calling decoders. It does not use mechanical reeds and sr therefore, far more reliable. It is fully tuneable over the standard frequency range 250 Hz. to 1600 HzJ It Is miniature in...

Nurmi Electronic Supply

1727 Donna Road We amp i Palm Beach, Florida 33401 PHONE - 13051686 8553 Motorola is catching up on rhe backloy and we've yot thousands f them back in stock. 10 52,50 - 100 520.00 THE DO EVERYTHING 2Vj AMP, 1000 VOLT DIODE Motorola is catching up on rhe backloy and we've yot thousands f them back in stock. 10 52,50 - 100 520.00 the most popular dual gate protected mos fet around. Good to over 400 MHZ. We yot'm and you yet'em for only--------------5 6.Q0 we went through 20 miles of it last time...

Wraec

Bill Turner WA amp ABl Five Chestnut Court St. Peters MO 63376 Jim WA3RSP dropped me a QSL to say that he will be on 6m in force from Pittsburgh this summer running a Lafayette transceiver on AM and a Ciegg Venus on AM and SSB. Jim is looking forward to tots of Es and scatter contacts. Larry W3MSN, is active on tim SSB and CW from Oxon Hill MD with a Swan 250C snd four elements. Larry is also active on 2m SSB and CW plus FM on 223.5 and 446.0 and would be happy to contact any and all from the...

Visit Your Dealer For More Information On These And The Complete Yaesu Line

Full six month dialer warranty with factory service available for continued after warranty service backup ADIRONDACK RADIO SUPPLY 518-842 8350 185 West Main Street, Amsterdam, New York 12010 AMATEUR ELECTRONIC SUPPLY 11444242DD 4828 W. Fond du La Ave., MilwaukeG, Wise. 53216 AMATEUR ELECTRONIC SUPPLY 305 B94-323B 621 Commonwealth Avenue. Orlando, Florida 32803 1401 Slake St., Denver. Colorado 8 2 2 ELECTRONIC EXCHANGE CO. 508-834 9000 60S Papworth, Metairie, Louisiana 70005 FRECK RADJ0 SUPPLY...

Waqnr

The promise of the transistor has been fulfilled. Here is the transceiver you will want to own . . . whatever you have now, get ready to trade up. Its important features are far too numerous to list. Its specifications are superb. The TS-900 is unquestionably the best transceiver of its kind ever offered. The price 795,00 PS-900 AC Supply 120.00, the DS-900 140,00 The new TS-520 is the transceiver you have wanted, but could not buy until now. It is a...

Converter

FETs in a hot Oscar front-end Many amateurs have been using the Oscar series of satellites and the popularity of satellite QSO's is bound to take another great step forward when Oscar 7 is in orbit. Many still have not heard the present satellite in operation or are trying to receive the down-link 29,450-29,550 on present 10 meter gear. The disadvantage to the latter is that the sensitivity of the receiver position of many 10 meter frans-ceivers starts to fall off significantly at the high end...