Info

I have been selling Collins Communications Receivers for better than ten years. Because my standards are very high, I had to price these sets at proportionately high levels and relatively few are aware of my service in this field. I offer for sale the finest variety of the best communications equipment available in the United States, and in quantity. My prices vary approximately 400 for a poor grade R388 to almost 2000 for the best grade R391. These receivers are all built around Collins...

Instruction

Liiiciio lieceiver RC-652-A (Part of SCR- 006 , 2.50 Radio Set SCR- 19 (Includes Receiver-Transmitter BG 1335 and Battery charger PE-21 i)) 2.50 Interrogator Set AN TPX-20 (Includes recefrer-tinnBmitter RT-211 TPX, Codei robtrfll Internster Set KY 97 TPX, accessories and schematics 5,00 Frequency shift exciters 0-39 THA T, 0-39 A TR A-7, 0-39B and 0-39C TRA-7 (f'sed with BC-C10) 2.Ta Amplifier Group AN FRA-2 (Includes data and schematics Pwr amplifier L5C - 340 and rectifier UA-22 5 Pofrer...

Nbs

The high frequency services of WWV arid WWVH are of most importance to U.S. amateurs t We are all aware of their usefulness for time and frequency spot checks. Actually there rtre eight technical serv ices provided by H F NBS stations. The services of most interest to Hams are the standard audio and radio frequencies, time announcements, propagation forecasts and geophysical alerts. Standard audio frequencies of 440 and 600 Hz are broadcast by WWV and WWVH. The 440 Hz note is the standard A...

Vanguard Labs

Mollis, N.Y. 11423 Paul Franson WA1CCH Peterborough, N.H. Many articles have been written and published about surplus. These articles have ranged from simple suggestions to complete and detailed conversions such as the one bv WA6BSO in this issue of 73. But these conversions are often hard to find this is well demonstrated by the many articles on surplus that are duplications of other articles. But it's not really that hard to find surplus conversions, Roy Fafenberg W4WKM...

Dc

Brush BL-202 2 channel 1.1 ftim r, SL-222 BL-944 Same tor ink * dec. wrtg R0-2321-00 Late model of BL 202. Brush BL-206 6 channel like BL-202. Edin 806A Bur for tlie 4 penmotors. G.E. portables O-Yi ma. 0-52 m* DC. Newt-Pack. 560A Digital printer. Solva CVH 250 VA low harmonics IIS Vo 1 Sola 30807 250 VA bi harmonics 115 Vo Sola 30S08 500 VA hi harmonic 115 Vo Sorensen 5 OS 500 VA low harm., 0.1 Sc la CVS 1 KVA low harmonic MS Vo 1 . Sola 30809 1 KVA hi harmonic 115 Vo 1 . Raytheon VR6116 1 KVA...

Manufacturing

A WAYLAND, MASSACHUSETTS WATERS PRODUCTS ARE SOLD ONLY THROUGH WATERS QUALIFIED DISTRIBUTORS Thomos Pickering WlCFW 991 Middle Road Portsmouth, R. t, 02871 integrated circuits in a high-performance electronic key er One of the most popular amateur projects over the years has been the automatic keyer. The ever-operated types have ranged from simple capacitor-relay types to the rather complex UltimabW1' An entirely new concept in keyer simplicity is now available to the amateur in I he form of...

All Ok J

9 Steel Cabinets (with Chrome Strips) Brond new Blk. Wrinkle Fin 7.95 Eico Modulator 730 New Fact. W 39.95 Col fins Antenna Tuner 180L3 , . 25.00 Jackson Audio Ose. 602 40,00 Sprague Tel-O-Mike TO-4 .40,00 RCA WP-23A Reg. Paw, Supply 25.00 Hickok 203 VT VOM 25.00 Hickok 209A VTVOM 9 Meier 60.00 RCA VHF Marker Ml-5199 Ch. M3 40,00 D ment 185A Electronic Switch & Square Wave Gen 40.00 Dumont 3 'Scope 224A 40.00 Dumont 3 Scope 164E 30.00 Dumont 3 'Scope 292 (Flat Face Tube) . 50.00 Heath 5...

Mm-radio Amateur 04-1971

Oscillator freq, 100 KC to 250 KC (proxy) 1250 KC (crystal), 15 to 20 KC (interpolation), 10 KC (blocking) R.F. Output 100 microvolts min> *n 51 ohms Method of Interpolation Visual, with built in oscilloscope Power Required I 15 or 230 V, 50 to 000 CPS, 136 watts. Size 22H x 26 ViW x 203,4D Description a portable hetrodyne type frequency meter for portable or fixed use* May be removed from the case and rack mounN ed, or used in the case with the tilt base as a table model.

VAC

Fig. 2. 7984 Compactron final amplifier. This amplifier puts out over 50 watts with less than one-third watt drive, Note that the tube requires 12 volts on its filament. Fig, 3. Recommended layout for the 7984 final amplifier. for a total of S28. Get busy on that junk box So that gives us the whole rig for S5G (less power supply). We made it. But only just, as the Scotsman said counting his change at the bank. The exciter (Fig* X) was covered in the April 1965 issue ol 73, but we reprint the...

Test Eouipment

1 9,606 Small compact sync, gen. mfg. cs part of Block'' 3 military equip, less few minor parts & tubes, no sth. 29.275 BC-306-A Antenna Tuning Unit for BC-375 19,388 BC-654A Irons, & receiver w PE 103 Dynamotor. cable & mike 19,407 BC659K with PE120-B power supply transmitter, receiver 27-38.9 mc 29, 33 Model CG-60 ABO Lecher Wire Freq. 390-940 Mc. 29,286 CU-1 68 FRR Antenna Coupler 29,280- -FR5 U freq, meter range 10100 mc 29,0 8- ID-66 AXR 1 Indicator (NX-32-49672) 19.750 1-97-A...

Rial New Unless Specified Otherwise

Sirei equipment cabinet with leather handle. Size ll1 ix You supply panel. Black finish. Removed 175 Ut mil MC tuned line osc. assembly, with piston type attenuator. Less i-AF4 tube & shields. Removed irom new test equipment, TLOl. 79c each Scope foundation unit Removed from new equipment. Channel strip with CRT socket, focus Ac Intensity controls, 2 position controls, 5UP1 scope tube, voltage divider string for CRT, bakelite bezel for CRT and circuit diagram & inSt ructions. Very limited...

Send Perfect Cw

H.O BOEHME keying head drive (less head) with Wheatstone perforator (Jess cover & p, s Si65.00 SOLA 24v, 6amp, constant voltage supply, rack mtg 29.50 SOLA 28534, 180vdc, 4amp, lists at S345 . - . 45.00 XMFR, 24V, lOamp, no c.t, HOv, 60cy. new 4.50 MULTI-FLMAC cabinets, brand nevt perforated cover, with punched chassis & front panel, unpamted DIM, 4l jH x 11W x 8D 3.50 MJCROLAB LB-TI01 UHF fow pass filter, BNC's. new .25 RT 279A APX6, late model, with all tubes , . S25.00 MAR 225mc 400mc,...

General Radio

600 to l5< 000 RPM ' '0.00 650A IMPEDANCE METER BRIDGE, Inductance Reading 1 to 100 Microhenry Capacitance f Mmfd, to 100 Mfd, Resistance 1 MilNohm to Megohm J 50 00 NOTE 650A with 650P1 (Oscillator and AC Supply) 225 00 675L piezo electric oscillator 395 00 700A wide range bfo 50 cps to 5 Mcs. e 7 13B IBF0- 20-20KC ' ' 95 00 7i5A DC AMPLIFIER, input 1 to V Volt N 7 6 CAPACITANCE BRIDGE, 100 UUF. tc M 00 3000 Mcs. E . , * 250 00 722D PRECISION CAPACITOR Dual Range 25 to 115 mmfd., 100 to M 50...

Oen

In tlie last episode my first DXpedition had come to an end, I think I had learned a lot oir that trip. I found that I did not mind traveling and really wanted more of it, in fact lots more of t. t had final got to the point where I did not mind in the least getting tangled up with the customs in the different countries, I had found that I could eat anything that anyone else could with no bad effects. I found that I was not effected with sea sickness at all. Many more things were learned too,...

Vine Street Dept

MILITARY SURPLUS ELECTRONIC EQUIPMENT ARC-27, ARC-34, ARC-38, ARC-44, ARC-52, ARC-55, ARC-57, ARC-66, ARC-70, ARC-73, ARC-84, ARN-14, ARN-18, RT-220C ARN-21, ARN-59, APN-22, APN-70, APR-13, APR-14, ARR-41, COLLINS 51X-2 RECEIVER, 17L-7 TRANSMITTER, 51V-3, 51Y-3, 618S-1. RECEIVERS R-388, R-390, R-390A, R-391, 51J-4, RT-66 THRU RT-70 GRC, R-108 GRC, R-109 GRC, AM-65, RT-77 GRC-9, GRC-10, GRC-19, PRC 10A, PRC-25, TRC-1, TRC-7, TRC-24, AN TCC-7, GMD-1. TEST EQUIPMENT WITH ARM, SG, PRM, URM, UPM,...

Ev

The new Electro-Voice 602F handheld dynamic mike is especial designed for mobile and other high noise applications with its noise cancelling features. The G02F has a positive, highly reliable detent switch and the whole mike is ruggedly built. Price is 57.50 from E-V distributors. You can get more information from Lynea Dalrymple at Electro-Voice in Buchanan, Michigan 49107. Uet you'd like one of these and you can afford it, too. It's the Tiny Tor alternator that supplies up to 350 watts 115...

Advertisers

EZ Antenna Mount, 79 Fair Radio, 156 FM Surplus Sales, 112 Fugle, 95 Gadgetecrs, 104 Goodheart, 128-129 Gordon, 144-148 Glass, m, 133 Govt Warehouse, 156 Gotham, 96 Grove, 159 Hoyden, 138 Heffron, 106 Henry, 37, 65 Noising ton, 79 HyGain, 49 International Crystal, 3 JAN Crystals, 98-102 Lumpkin Labt, 75 Sound History, 153 Space, 107 Spera, 126 Swan, Cover 2 Tech Systems, 1 54 Ttlemorine, 124, 125 Telrex, 22 Tepabco, 153 Topaz, 53 Top Sales, 139 Translate 95 Trfstao, 96 Tack, 97 Vanguard, 72, 73...

Crystals With Fractions

Low frequency crystals ranging from 370KC to 540KC in 1.388 steps 49 lt eo. or 10 for 3.95 Crystal Kits for BC 611 or Walkie Talkie consisting of 24 crystals, 5 antenna coils and 5 tank coils all in a wood carrying cose COLLINS ARR-15 Receiver, 1.5 to 18.5 MC with Collins PTO amp calibrator, in good condition URR-13 Receiver, continuous tuning AM superhet, 225-400MC plus 1 crystal controf channel, 2 stages RF, 5 stages IF, 110 VAC, 60 cycle, in, good condition, unchecked ea. 597.50 CBM Low Band...

Look Here

ART-13 Transmitter, 200 watts output____ 39.00 Eldico TR-75 TV Xmitter, 80-10, 60 W 24.00 TA-12 Xmitter, 160, 80, 40, 20, 90 W. 1J5V. supply ARC.-I, Xmitter-Receiver for 2 Mtr 29.00 Military HRO Receiver, with 3 coil sets________45.00 Lettine 246 transmitter, 40 Mtr 39.00 Super-Pro 779 Receiver with 115 V. Supply 79,00 Heoth VFO, 80 rhru 10 Wavemeter Osc. model OAP, 3 50-230 mc . 18 00 Navy RU Receiver, with 3 sets of coils ________9 00 Teletype Receiver, 11 tube, with 115 V, supply 12.00...

Scr522 Microphonetransformer

ALL RESISTORS I WATT, ALL CAPACITORS tt_V R MICA. Fig, 1 Revised rf circuitry for the SCR-522, replacing the old oscillator and tripler. The three digit numbers are original parts numbers. i here are probably many reasons why the old 522 lost its popularity, but TV interference was no doubt near the top of the list We have learned a lot about TVI in the last 1.5 years, but many hams still tend to be afraid of the 522 because of TVI problems. In much as this transmitter has been used nightly...

Parametric Amplifiers

This book, the first on parametric amplifiers for the ham, is written for the average amateur and explains in simple language how the work, how to build your own for the various UHF bands, and how to tune them up. Parametrics have helped UHF move rnto the space age, but don't forget that the first working parametric amplifier was built by WIFZJ and worked on six meters Order this book direct, 2X0 postpaid, or from your local parts distributor. How can an electronics technician who's right out...

Include Postage On All Items

Model CV57, less tubes, surplus. VFO OSCILLATOR marked part of AN FRT-23.RF range 600 to 800 kc. With 6SJ7 tube. 0.001 watt RF output. 8.00 30-42 MC DOUBLE CONVERSION FM superhet receiver. Has 10 band pass filters and 10 plate relays. Operates from 24 volts DC. Brand new condition. Surplus. 14 tubes included. 25.00 RADAR SCOPE INDICATOR Model 1P-183 BPS-4. Includes 13 tubes and 5 CRT. Weighs 140 lbs. 'his unit is fine for a real expei imenter. 29.00 ARC-5 IF...

Rtty

Ized, it is quite small and light-weight. For more information, write to Stoner Electronics, Alta Loma, California, , , WA6BSO The new Stoner Rr -1 radi gt teletype converter provides a simple and economical way of getting 011 the local H I I V net. if you have a receiver and a printer, the RT-1 is the only accessory necessary to copy ham RTTY qso's, press stations and other 60 WPM radioteletype transmissions. This is particularly advantageous because with mam converters, both commercial and...

Rower Maker

300 watts of G0-cycle AC power from your 12-volt battery. All transistorized light, compact, rugged easily installed. For running TV, lights, recorders, public address, tools in your trailer, camper or auto. Postage amp Insurance 2 51 fi CaL Res. Add 2,40 Tax 3804 Houston St San Diego, Calif. 92110 Fig, 3. New modulator to replace the original modulator designed for carbon mike input. Fig, 3. New modulator to replace the original modulator designed for carbon mike input. in Fig, 6 and install...

Rotary Ceramic Switches

All heavy duty, handle KW RFT Heovy duty defends. 3 deck, 8 position, no stop, 5 wrred. shaft 2,50 2 deck, 6 position, progressively shorting. . , , , 2,50 2 deck, 12 position, non-shorMng VV shaft . . 2,50 ROTARY CERAMIC SWITCHES, with W shafts Heavy duty, all handle KW RF, Heavy duty detents. 3 deck, 8 position, 5 wired, no stop, progressively shorting 2,50 2 deck, 12 position, non-shorting 2.50

T Urns No

Fig. 2. 432 mc low noise converter using TIXM05 transistors- stage though the 4 pi shunt capacitance per diode means some coil turn juggling to keep the input tuned to 432 mc. Type 1N100 diodes were used in the unit shown here since they seemed to have less shunt capacitance and antenna relay leakage from the transmitter wasn't too severe at W6AJF. The coax relay was a hard to find type more suitable for operation in he UHF region than the standard Dow relays available for lower frequency...

Wtw

If you have any questions about the award please drop Gus a line via 73, Peterborough, N. H. 03458. The word lias been going around that the League may change its mind about giving credit for Ebon Atoll and Cormoran Reef. Chuck Swain was sailing around the Pacific Ocean putting rare countries on the air to give fellows i XCC credits and he checked with the League before going to Ebon to make sure that it would count for DXCC before making the dangerous journey. Chuck was lost at sea...

Tm

TM 11-692C-1 Radio Set AN A HC-2 7 Maintenance INSTRUCTION BOOK Super Pro Radio Receiver SP- 210LX SPR-210LX 1.50 TM 11-274 iiadio Set AN GRC-1 Includes schematics 2,50 INSTRUCTION BOOK Radio Set AN TKC21 liadio Terminal Set AN TRC-35 mid Sadio Relay Set AN TRC-36 Limited Quantity 5.00 TM 11-520A liadio Receiving Set AN ARN-30 A Limited Quantity 4,00 TM 11-5821-205-35 Radio Set. AN ARC-60 Maint. Manual Limited 3,00 TM 11-2601 Radio Set AN TRC1, Radio Terminal Set AN TRG-Sj Radio Relay Set AN...

For the BC

The BC-348 J, N and Q series general-coverage receiver was, and is, one of the best bargains in surplus. Although it has many attractive features, its lack of selectivity is its most serious drawback. The modification described in this article converts the oY reliable plow-horse into a sensitive thoroughbred. With i 110 vastly increased selectivity, you'll be able to get solid copy through noise and QRM that would normally obliterate the signal. After putting up with the problems involved in...

Tunable Arc Receivers

R13A 108 to 135 mc Exc. 29,95 R23A-1 90 to 550 kc Exc. 12,95 D10-12 volt dynamoror for any above New 7,50 C744 ARC adaptable control box, . Exc, 1.95 TAC SHAFT Flexible tuning cable. 1.00 NICKEL CADMIUM BATTERY. Rechargeable thousands of ttmes. AEka-line storage battery sintered plate. Fiat voltage curve during discharge. Will hotd charge for o long period of time. High discharge rate up to 50 amps. Spfl l-proof, May be used in any position. T-2 volis, 3,5 AH. 1.2 volts. 25 AH 1.2 volts. 50 AH....

Amateur

I OAR emphasis now and for the future The following material has been carefully documented in depth, to include the aims, goals and purposes of the Institute. Many of these are goals to be reached in the future when sufficient membership, support and money are available. Many projects are currently active and more are being implemented. The Institute intends to emphasize individual effort along technological lines and point up self-incentiveness and achievement of the individual Operator. The...

ZUO

Telegraph, TWX, and data devices ARCTEL remote control and telemetry systems Automatic Telephone Callers Dial Testers. Special offer for ham operators only A limited number of DMS-1A Distortion Measuring Sets some reconditioned are available at a special price of 75,00 Write Department TP-Bt or phone 703 354-3400, Extension 485,

C C C C

AJERO VOX ' ,03 MFD 2000 DCWV Tubular condenser. Type 2Q8 amp D. Each li c. 10 for SI.50 Donu itirmil transformer 150 5 A.C Amp. Use with a 5 Amp, instrument. DCT-1 2,95 each FILTER CHOKE 7 Hy at 150 Ma. D.C. Res 200 ohms. Channel nwuni type. Factory surplus 700 lt gt n hand'. Each 89C. 10 for 7 99. 100 for S69.50 GUARANTEES Your sat. i sf act ion is gi taran Usd mercliand se muy be -rt1 turned original condition for a cost of merchandise refund. 30 day limit Ail parts jH'W arc guaranteed for...

Odds And Ends

Remote amplifier chassis from 8270 remote. In sad shape, 9,95 Remote amplifier chassis from F5C-1 Deluxe Remote, Fair condition. 15.00 Power supply P9027 used in FMTRU-4 1V, 9.95 Power supply TIM 36 used in T44A-6 mobile, 9.95 Power Supply Motorola T41 or T51. Dual vibrator, 30 watts or 60 watts. I don't know which . Lots of parts and rectifiers. Vibrators included, 9.95 GE mobile transmitter 30 watt transmitter, 807 final. 12V Above listed Odds ond Ends items shipped prepaid. Teletype...

Ellenton Florida

TS 418A 400-1000 meg signal generators, AM, PM or CW emission TS-419 900-2100 Mc Signal Generator Millivac MV-17C Voltmeter 1 mv-1000V Lambda C-281M 125-325 v, 200 ma Lambda C-481M 125-325 v, 400 ma Lambda C-881M 125-325 v, 800 ma Electronic Measurements 234AM 0-300 v, 0-500 ma . . . Electronic Measurements 204AB 0-500 v, 0 300 ma DuMont 404 Pulse Generator 0.05-105 microsec Hewlett Packard 212A Pulse Generator .07-10 sec at 500 watts . . . Measurement Model 79 Pulse Generator General Radio...

Motorola P Fm Test

HIGH POWER 1296mc transceiver, 5kw pulse, will run 150 watts controlled. Present xmf freq. is 1 lineup 6AH6, 5763, 2E26, 829b made in 1961, for rock mtg schematic, less power supply . . APR-4 Y AM-FM RECEIVER, 400cy, RBL-3 RECEIVER, 5kc to 600kc, 1 TG34A CODE OSC, with 2 rolls tope mod. dme, rated out on cw. xtol I96mc. xmtr tube , 2-2C39A, 6161. . complete with

Sbc

Handy Dcindyt are sturdy, pfa amp tic caps that nap info Va peg-board and security hold quarter-twist glass jars such as rhosc used for baby food. If you are up to your neck in saved baby food jars or you know someone who is , put those fars to work. With Handy Dandys you tan make your workshop neat and clean Perfect for storing nuts, bolts, cotter pins, washers, screws, fuses, small tools and other important items needed around the house and shop. Handy Dandys positively keeps contents...

Well Trade

You a brond new, unopened carton piece of first quality equipment any brand you name at our low low price for equal vaiue on any surplus item you have q offer. SPECIALS FOR SALE Measurements 80 Signal Generators 249.50 HEWLETT-PACKARD 400D, VTVH Rack Mount 165.00 536A new Freq. NTR 1-4 Kmc 350.00 430C Pwr. Mtr. Exc. 160.00 Special . . Brand New Klystron Power Supply in sealed car ton H.P. 715A 195.00 H.P. 717A used 175.00 152B Dual Trace Amp. 125.00 Ballantine 300 VTVM 69.50 H.P. 450A Amplifier...

Jk Flipflop

Fig, 8t Bottom view of Fairchild gate and flip-ffop IC's, Note Pin 8 of all modules goes to 3,6 volts pin 4 to ground, bearing and if a flexible jumper does not bypass this bearing there can be erratic operation. Some of the key paddles designed for use with electronic keyers have considered this problem others have not. Trouble shooting if required, is simple. An ordinary multimeter may be used effectively. When a circuit point is supposed to be low, it should read not more than about 0.18...

Raytheon Company

213 East Grand Avenue, South San Francisco, Catiiornia 94080 Export sales Raytheon Company, International Sales amp Services, Ltixjngiort 73, Mass, U.S.A. Frank Jones W6AJF-AF6AJF 850 Donner Avenue Sonoma, California 95476 Build this simple, low-cost transistor converter and filter for a 2 5 db noise figure and lots of I V he units shown in Fig. 1 and 2 and in the photographs are part of the system described in a previoust article. The problems encountered in transistor converters were...

Tektronix

K PLUG-IN-UNIT, fast rise DC unit used with 530, 540, 550 and 580 Series Scopes . . .75.00 53A PLUG-IN-UNIT FOR SCOPE, 531, 535, 545, etc. Wide band DC Pre-Amp 50.00 53B- PLUG-IN-UNIT FOR SCOPE, Wide band, high gain, calibrated . .65.00 80 VERTICAL PLUG-IN-UNiT with P80 Probe, use with 580 series oscilloscopes, both units B93R TERMINATION RESISTOR, 1.5 Ohms 93 105 SQUARE WAVE GENERATOR, 25 CPS to MC, 15V output, rise time less than 20 N5EC into 93 Ohms, as short os 13 NSEC under suitable 121-...

Communication Sales Co

7231 HINDS AVE, NORTH HOLLYWOOD, CAL. 91605 PHONE 213 765-4418 EVERYTHING UNCONDITIQNAlLY GUARANTEED We have the Best Electronic Equipment Inventory in the U.S.A. for Professionals , . , Schools - . - Li1 bs 4 Industry . . Advanced Hobbyists , , . So Tell us your Specific Needs . . . or select from these listings and ask for price and more technical information if needed, HLI-103-A Hoffman Taean Test. Set, MD-S3A i Collins 479S3 Omni Tester, SG-1A, PP-348 Boonton 21J A for VOR 56-13 Collins...

High Quality Vhf Transceivers That Anyone Can Afford

AK sR-42A amp SR-46A by haf icrafters The SR 42A, a two meter VHF transceiver, has many of the advantages and features of more expensive units. Yet costs only 199.95. Efficient filters and selected injection frequencies make both the SR 42A and the SR 46A Hallicrafters' six meter transceiver virtually Immune to FM and TV interference. And the best place to buy HENRY RADIO PHONE, WRITE OR VISIT FOR INFORMATION ON THIS OR ANY OTHER EQUIPMENT 6 FINANCE CHARGE 10 DOWN OR TRADE-IN DOWN NO FINANCE...

Nnl

Cuit derived bias voltage across a 100,000 ohm resistor, bypassed for audio, in the grid circuit of the last if tube. The voltage developed there at high RF levels was applied to the grids of preceding stages. The system preserves the modulation envelope pretty well for subsequent detection. When the detector diode feeds a delayed AVC line, extraction of power from the if circuit by the AVC only at the top ol the modulation envelope tends to distort the audio peaks. This drawback was overcome...

Trimmer

Assembly on tan bakelite, 5 NP0 5-25 NPO 3 12 2 N 8-50 pf. T.25 board 5 NPO 1.5-7 pf. 75c board 4 NPO 5-25 pf. 60c board 7-100 or 0-125 pf, choice 18c each ARCO 3-30 pi, miniature 18c each 2 5-20 pf, on ceramic plate 23C each , .4 54.75 . .4 2.75 . .5 52.75 , .6 1.00 . 6 1.00 , ,5 T .0Q JMC 1 801, 1 -12 pf quarts, 69tf 3 1.95 GW C48, 1-12 pf, glass. 39 lt 3 5M0

Works Gwp On Metres

INDOORS ZL4GA'i JOYSTICK got him 569 on 3,5 Met from G5WP on 21st February, 1965 at 0850 GMT. Alan had worked VE7BEY on 3.5 mcs at 559 and also logged 59 countries on 14 m cs by that date, including LUTHBS and 9M4LP, Terti-monials continue to pour in read W70 's fantastic results Partridge operate a rigid, 100 Money Back Guarantee if you're not completely satisfied This ticket will bring you th new brochure by return et P tease send brochures and testimonials Nam Coll Partridge Electronics,...

Reflectometer

Amazing new Reflectometer with its unique dual meter teils at a glance both forward and reflected power of your rig in RF watts. Two separately set forward scales of 200 and 1000 watts 20 and 200 watts reflected insure accurate readings. VSWR can be immediately determined from the calibrated reference chart. Comes complete with remotely located Directional Coupler and connecting Get more talk power into your signaf with a Compreamp Solid state, self-powered and compact it installs in a jiffy in...

Prices

A-ASP B-BUD C-CARDWELL E-JOHNSON M-MILLEN, A 5 gang, 402 pf 'sec. for output pi-net. Load 160 meter, less inductance. Handle KW. shaft -S2.50 A some, with 60 1 rt angle gear drive 52.50 B Eirt 52-516, dual 470 pf sec. AVz KV shaft , 7,00 B C dual 8-90 pf 'sec. 9 KV x 2 shaft . . 56.00 C r 154-1, 12-244 pf. 2 KV dual V4 shaft 3.50 C Eirl 54-1 1, 9-36 pf, 4Vi KV dual Va shaft S2.25 CJ E 50F30, 9-52 pf, 3 KV dual V4 shaft , . 2.00 C C or Mi, 12-151 pi, 3V gt KV y4 x 1 shaft 3.95 D C 365 pf, 2 KV...

Semikonductors

85 WATT 2N424 PLANAR, silicon, TO-53 npn j 30 KLIP IN DIODES, made i gt y Sylvan a Q J IGNITION SWITCHING 1RANS STOR ,tO AMP J i 4 2N336NPN SILICON trims, ist or , Tnmaialrou 5 310 ZEN R5 REFERENCES 2N998 TYPE, 1000 GAIN, mm silicon, planar . 0 MICRODIODE ST A8ISTORS. PO a Uiron HS 6 TRANSITRON TRANS'TRS, 3N 4 1. te t, npn S 4 TEXAS'' 20 WAITERS, w sink 4 2N 70 TRANSISTORS, by npn for pt-iTl rf 6 TRANSISTOR RADIO SET, osc-Hs, driver-.PP - S 75 GERMANIUM amp SILICON DIODES, no . 35 TOP HAT...

Communication Crystals

PO BOX 2366 KANSAS CITY, MO. FULL SIZE new complete with boom and hardware SWR 1 1 handles 5 KW adjustable entire band a d 1 dnm. alloy tubing coaxial feed 3 El 20 ,. 22.00 3 El 15 U6.00 2 El 20 16.00 2 El 15 12,00 4 El 10 18.00 4 El 6 15,00 ALL BAND VERTICAL V160 C tfiru 160 . 18 95 QUA05 MEW I NEWl ALL METAL occei insuluior. Cubical Quads 2 El full size complete with boom, all hardware terrific gain and directivity best quad ever made no bamboo 20 meter 25 15 mtltir 24...

Decade Resistance Boxes

102F Tenths Units Tens 35-00 102g Tenths Units Tens 35,00 102J 1 to 11,100 Ohms 4 ranges 102L 10th, bun., thou., 10K 35.00 1025 Units 10's Thousands 35,00 249H 600 Ohms .60 00 249T 600 Ohms 60.00 5466 AUDIO FREQUENCY MICROVOLTER, .1 Mu Volt 1 Volt. Used in conjunction With an esc ilia tor for response measurements of amplifiers, xfermers, etc 80 00 561D VACUUM TUBE TESTER and' BRIDGE, Tronsconductance, amplif ication factor, and dynamic vottage checks, etc. made rapidly with adaptors LN . , 1...

Since

Alcp has just announced a new digital readout indicator that should appeal to many experimenters, It comes in two models, lor fi volts or 4. and includes the ten digits and a period, The indicator is only about 21 x inches so should fit just about anywhere. Von can get more details from Alco Electronic Products, Lawrence, Massachusetts. New trollies has just announced the new TOM-l trunk groove antenna mount that permits vou to mount your mobile whip without drilling any holes in your cars...

Ramblings

World Largest EXCLUSIVE Manufacturer of Towers designer , engineers, and installers of complete communication tower sy stems. Mail delivery in the U.S. seems to be at its slowest ebb yet Service is terrible. It takes as long as three weeks for second class mail to reach the west coast from our printer in Connecticut, and even air mail often takes as long as three or four days. But we have been assured by the Postmaster General, L. O'Brien, that service will improve. or instance, he proposes a...

Silicon Mesa Power Transistor

Your choice of any 12 of the above for 5, 150 PfV 35 amp. Used, guaranteed, with mounting hardware, 5,00 6 1,00 each SNIPERSCOPE, M-3, late model, permits viewing in total darkness. Ready to use, includes 20,000-volt power supply. You furnish 6 volts DC to operate. Used, checked out. Rifle shown in picture not included, 225.00 BC-733 RECEIVER w conv sheets for 6 meter receiver, Exlnt. 8 00 RDZ RECEIVER, 10 channel crystal controlled, 200-400 mc, 115 vott 60 cycle power...

Yre

Standard Frequencies ' a short article in September 1965 73 said . . 1000 cycles is available from the telephone company by dialing any local exchange i olio wed by 9945. it should have added in the New York City area.1' Apparently each Bell Telephone division has a different number for its 1000 cycle test tone. In the 3Vi inneapolis-St. Paul area it is any exchange followed by 409S. Telephone companies are reluctant to reveal the number for fear of overloading the line power-wise, but a Utile...

Hewlettpackard

4 fc ki 1 yTVM, DC 0 to 100V, AC 0 to 2 to 500 Megohms, Frequency to UU MCS . ...............................151 nn 4 I OB SAME SPECS LATER VERSION 55 00 4 I SA SWR INDICATOR 5pec,ai 55 00 4JOE-MICROWAVE POWER METER, .01 to 10 95 Ofl 460B WIDE BAND AMPLIFIER, 20 KC 120 mcs ..................................90 nn DETECTOR MOUNT, 8,2 to 12 KMC5 40 00 4876 THERMISTOR MOUNT, 8 2 to 12 4 KMC - -..... ..................................40 00 491 A TRAVELING WAVE AMPLIFIER Wait Ma owda j r 4 TW Tube is...

Selectronics

Napa Street Philadelphia, Pa. Alt Drices are fOfl our Philadelphia warehow . Alt merchandise described accurately to the best of our knowledge. Jour purchase money refunded if not tafttfied. Ter,ni ore ca h. Minimum order is SS The public h welcome to brow . Were open weekdays 8 fa S and Saturday i S to I. RTS2 APX6 nukta 1215mc .vt Ori nv . NEW W 0 1FPMS Ti-riri APXk 27 rub s. 10 liiodes. 1 I 60cy__________________ ____ FAIR 1 4 50 TS726 UPM8 Same as above but US rveoinlilioned . lt LX...