Vanguard Labs

176-23 Jamaica Ave, Dept, H Hollts, N.Y. IT422 the decal and cause it to stay in place. Let the decals dry thoroughly, Phe next step is important to give the panel a commercially-built appearance. D fais made for use on radio equipment rely on a thin film of clear lacquer to support the individual letters or dial markings. When the decal is dry, light reflecting from the lacquer makes this backing objectionably obvious. With a little care you can dissolve the film without disturbing the...

Receivers And Transmitters

SPECIAL, LIMITED QUANTITY JUST ARRIVED 2 meter, J. Jt SPECIAL, ICA 7 II5-I52MC, this Is the most compact built transceiver, 7lpx 12, using 2ea. 5763 tubes in final, delivering IS wafts unit is built in compact modules also has a crystal turret for IG1 crystals which tunes remotely. This transceiver with dynamotor and all tubes 23.95 ea. or will trade for test equipment. WALKIE TALKIE citiien band, new seconds, transistor type, using sensitive PM speaker with antenna 1 for 6.95 each 3.95 Less...

Info

Mixed Hardware-Nuts & Bolts 2 Collins Mechanical Filter 455KC Part F455-Q3 New Bud Shadow Cabinets 9lbs. H-7l 2xW-13l 4MxD-9 Precut Replaceable Front Panel Globar Resistors 8 long 5000 ohms 25W Globar Resistor 18 long 197 ohms 54W Globar Resistor with Mount 100 ohm 25W 4 long Connector SO 239 New Connector PL 259 New Adapter UG-175 U New

Test Equipment

PRESTO MODEL 100, HIGH FREQUENCY CALIBRATOR for AM Band with 50 MC crystal in 50 MC multiples. Good for 2 & fi meters, H P' MODE L 415A SW R M E T E R .___ WESTON Portable Milivolt meter, 50 MV full scale .5 of with mirror scale BRUSH DUEL CHANNEL RECORDER BL 202, complete with amplifier BL 928 or equal, excellent condition for S125.00 TS 148 SPECTRUM ANALYZER for checking frequencies of TR and RT, also signal generator, local osciilators and magnatrons. It iso meas* ures pulse width, RF...

Slep Electronics Company

ELLENTON, FLORIDA 33532 WRITE-WIRE-PHONE (8131 722-1843 BILL SLEP, W4FHY There are tons of surplus 400 Hz power transformers on the market today. Since there is not much demand for them, the price is still low. Amateurs have always sought ways to save money and still get what they need, so here is a source of untapped gold. If you follow the principles outlined in this article, you can use high grade components in that rig of yours and still save money. Since the speech...

Mission Ham Electronics

3316 Main Street, Riverside 3, CoIHoritiai 92501 Phone 683-0523 (area code 714) We're happy to report to our many friends in the ham fraternity that effective March 28, 1968, E. T. Clegg Associates announced the acquisition of all assets of the Clegg Laboratories Division of Squires-Sanders, Inc. At our large, modern, new facilities (pictured below), you'll find stocks of the famous Clegg CLASSIC VHF Converters, 22'er and 66'er transceivers, SSB equipment, etc the contest winning rigs that have...

For Tubes

Lewispaul Electronics, Inc. 303 West Crescent Avenue Allandaler New Jersey 07401 KAAR PH17M Transistorized transmitter for 40 80 160 Meters This new solid state SSB, compatible AM, and CW transmitter for three band operation on fixed frequencies is now available from Kaar Electronics, Corp, Power output is 90-100 watts PEP depending on frequency and antenna used. Audio frequency response extends from 450 to 2600 Hz, and is down onlv 2.5 dB at 500 and 2400 Hz with respect to 1000 Hz, The...

Unity Electronics

107 TRUMBULL STREET ELIZABETH, NEW JERSEY 07206 201 351-4200 if Price 2 per 25 words for noncommercial ads 10 per 25 words for business ventures. No display ads or agency discount Include your check with order if Type copy. Phrase and punctuate exactly as you wish it to appear. No alUcapital ads. it We will be the judge of suitability of ads. Our responsibility for errors extends only to printing a correct ad in a later issue. it For Sl extra we can maintain a reply box for you. if We cannot...

Radio Amateur

These valuable EXTRA features included in both editions QSL Managers Around the World Census of Radio Amateurs throughout the world Radio Amateurs' License Class International Radio Amateur Prefixes Over 283,000 QTHs in the U,S. edition See your favorite dealer or order direct add 25C for mailing in U.S., Possessions amp Canada. Elsewhere add 50 . Radio Amateurs' Prefixes by Countries W. W. Davey W7CJB 329 East Kent Missoula, Mont. The guard channel in the ARC-1 is normally used on 121.5 MHz...

New Concept In Its Exciting Beam Antenna Program

Any knowledgeable DX'er will tell you the secret js in the antenna. For over a year Henry Radio has provided an exciting beam antenna package program allowing the average amateur to own an efficient, and unbelievably economical antenna package , , . pre-engineered, pre-matched and pre-packaged to suit his pocketbook and requirements. NOW This world famous anienna program moves forward. NOW You can have the antenna of your choiceat the same incrcdible saving. Tristao CZ-454 New Concept 60 ft....

Lm Frequency Meter

IjM NAVY TYPE FREQUENCY MKTKlli 125 20.00 KC cmtal c IibraLed hidl eating equipment, heterodyne type accuracy .01 to A 2 depending on fre lt . With modulation 5 00 cycle. Voltage required 12 24 for F1I. and 1SQ 5 MA 475 VI gt C 20 MA. With 1000 KC crystal amp tubes. Also calibration book. Units have been u amp ed and may need replacement of some switches or minor parts. Otherwise guaranteed serviceable. Size x Wt. 15 lbi. Price as described above 24.95 Or With All Parts S2 amp .50 Prices...

Pdp

Check with C amp H for all your eqpt. needs. Sensational savings in electronic test eqpt., optics, component parts, gauges, amp all those hard to find items, stocked under one roof at 2176 E. Colorado Blvd., Pasadena, Calif. 91107, Call 213-MU 1-4925 amp 213-SY 6-2628. H.P. x 912A Termination 35.00 10 Won't Last Long- 15.00 0-500 VDC 200MA 125.00 H.P. 616 A 1800-4000 Mc 450.00 as H.P. 614A, 900-2100 Mc 395.00 H.P. 522B Counter, 10 CPS to 120 Kc., 220 Kc. with plug in modification H.P. 415B SWR...

Mjw

Clifford Klinert WB68IH 520 Division St, National C yr Calif 90250 In my Version a 6SA7 was used as a mixer and a 6J7 was used for the rf amplifier. A VR-150 was added to provide stable plate voltage for the oscillator, a 6 5. Standard circuits were used, and each constructor probably has his own ideas about what circuit is the best for him, or his junk box. An ideal approach would be to use a 7360 to avoid the rf stage, and perhaps a complete receiver could be built on the chassis. All...

Dgj

Schematic diagram for ALC circuit, N484 or equivalent should have high back resistance. CRi IN 1696 should be rated for 300V PIV. Feed ALC from linear into point C. partment, then to the socket from one of the jacks on the rear panel. Operation of the 200V alone showed a complete lack of distortion products on its scope and when the NCL 2000 linear was used, grid current was held to less than 1 mA, no matter how much input was used. Incidentally, I have found the best method of proper...

Franklin Oscillator

Fig. 11 shows the Hartley circuit its identifying characteristic is the tapped resonator which provides feedback by means of the cathode circuit. This circuit is widely stability but covers a wide tuning range with very small changes of capacitance. When a crystal is used as the resonator, the circuit at C results. It is known variously as the grid-plate circuit and as the crystal Colpitis circuit. All three obtain their feedback from the voltage divider composed o capacitors CI and C2 in the...

Parts Not Identifcd Are Part Of Original Unit

The At'S-13 has been around for a long time in the surplus houses for about 2 each. The Tail-end Charlie, as it has been nicknamed, was used in the tails of B-17's to detect approaching aircraft- It contains both a transmitter and receiver. The receiver is not worth the effort to convert for video as the 30 mHz if strip and 430 MHz converter module are very noisy by present day standards and aren't wide enough in frequency response for good TV resolution. It does work fair for audio, with some...

The Wood County Amateur Radio Club

Announces its 4th Annual Ham-A-Rama Sunday, July 7 at the fairgrounds, Bowling Green, Ohio. Write W8PSK, 324 South Grove St., Bowling Green, Ohio 43402 for details. COMPLETE FIXED AND MOBILE SBE-34 with microphone and built-in calibrator, modified for CW with key. Deal includes Webster band spanner and mount. Less than 18 months old and not used for last 6, With all cables and instructions. 300 takes all. R. V. Palmer, 2642 Maple-wood Dr., Longview, Washington 98632. COLLINS G2S-1, serial 11744...

Arcturus Electronics Corp

St., Union City, N.J. 070S7 Dept. M73 a sensitive broadband RF detector gives audible tone signal in the presence of any RF field from lOmw tolkwand lOOkt to 1QOQmc a CW monitor with positive RF switch uses only 8pickup antenna and NO connection to rig or key a code practice oscillator with adiustoble tone amp built In speaker high gain 4 transistor circuit powered by long life AA pencell 16gauge aluminum cabinet in white amp black epoxy finish, 3 Va by 1 aby 1T 4...

Jefftronics

ARC-1 Transceiver 100-156 Mc, 28 tubes. 20.00 Command Xmtr. 4-5.3Mc. Less tubes, iair Loading Capacitor 5-sections, 400pf. per sections, with saft adapter, 2.30 Hundreds of other surplus parts and equipment. 4252 Pearl Road Dept. J8 CLEVELAND, OHIO 44109 Hewlett Packard Audio Osciilator, Spec, 35744 20 to 25 cps 35 00 Bailantine Model 300 AC-Volt-DB Meter ,,. 47.50 BC221 Freq Meter 89.50 GR, 650A Imp. Bridge 125.00 GR. 1500A Counting Rate Meter 45.00 GR. 760 Sound Analyzer 125 00 TS-120 Test...

Military Electronics Corp

Please rush me a quote on the following gear that I have to sell NAVY TED TRANSMITTERS AN URR-13,27,35 etc., AN URA-6,8,17 AN SPA-4,8,9. AN GRC-3,4,5,6,7,8,9,10, 19,26,46 RT-66,67,68,69. 70,77 AM-65 GR, T-368 UR, PP-112 GR, RT-I74 PRC-8, R-108,9 GR, RT-I75 PRC-9, R-MO GR, RT-I76 PRC-10, T-I95 GR, AN PRC-25, R-125 GR, T-2I7A, T-235 GR, R-278B, SB-22 PT, MD-I29A GRC-27, AN VRC-12, etc. AN TRC-24 T-302A, AM-912,3 R-4I7A, AM-914,5, PP- Collins 17L-4.7, 51X2, 5IV3, 618S, 6fST, 18S-4, 62 J A3,...

Ac

Audio distortion analyzer, covers 30-16, 000 Hz, may be shifted some to receive low frequency stations. General Radio type 737 269. or HP type 300A 175. VTVMf Multimeter, Hewlett Packard type 410A, 1-300 vac, 6 ranges, 1-1000 vdc, 7 ranges, 0.2 ohms to 500 meg, 7 ranges, read to 700 mHz, still an industry standard instrument, requires ac probe tip 89, SIGNAL GENERATOR, HP 608BP 10-410 mHz, calibrated output in DBP internal modulation, may be pulsed, 115 230 volts, industry standard FREQUENCY...

Ez Way Products Wonder Ground Post

WONDER GROUND POST'S stabilizing fins Insure a solid setting under practically all ground conditions WITHOUT THE USE OF CONCRETE Simple installation requiring only a post hole digger. Thousands in use throughout the world Join the thousands of Hams enjoying E-Z Way Towers' exclusive advantages. The easiest Ham tower to install. Also can be raised and lowered to any desired height by one man and with equal ease tilted to horizontal position permitting access to beam and rotor at ground level....

Kz

Did we miss any And how many did you miss Sorry about those KN and WV prefixes, but they are all out of date now. Over 100 nomographs of conversion charts, attenuators, filters, transmission lines, passive components, tubes,' transistors, etc. Nomograph fans will go right out of their minds at this collection. Published by Tab Books, Blue Ridge Summit, PA 17214, 9.95, a big book and spiral bound. 175 pages. Hardly a week goes by without receiving many requests from readers...

Hunter Sales

Visited by an Air Force major and some fellow from a very large electronics firm I hesitate to name. The civilian explained that the object I had, the AN TSQ-1, had been built by his company and was being tested by the Air Force The tests showed it to be unsatisfactory, though he didn't say why. Nor did he offer to explain just what it was supposed to do, or how it happened to get in with a batch of surplus equipment. Considering the price I paid for it, the major made a very generous offer to...

Bao Case Of Back Wave

Fig, 7, Various factors in the keying of CW transmitters are illustrated fiere. The third and fourth lines from the top show the ideal case the remaining three are to be avoided. rect make and break, because ibis will produce a splattering type of interference known as key clicks, Other things can also go wrong. Fig. 7 shows a few of the considerations involved in proper keying, AH the lines in this picture represent tlie waveform of the letter V, sent in CW, The top line shows the way we...

Rca Dual Gate Mosfets For Both The Rf And Mixer Stages

The performance and features of our new converters are so spectacular that they can only be fully described in our new illustrated catalog which is available FREE. Send for It today and see our entire line of converterst pre-amps and other communications equipment, VANGUARD now makes the best converters. Buy one and be convinced. Robert Green W3RZD 3304 Collier Rd. Adelphi, MD 20783 No doubt about it, there is still plenty of World War II surplus electronic gear still kicking around, and in all...

Of Our New Facility

Ralph Steinberg, K6GKX MO Argonne Ave., Long Beach, Calif. 90803 Twenty minutes from the battlefield to a hospital bed aboard the USS SANCTUARY and her sister ship the USS REPOSE, These two Navy hospital ships ply the waters of the South China Sea from Chu Lai to the DMZ doing admirable duty in saving the lives of many casualties helicoptered aboard. Each is a floating hospital of 750 beds, staffed with expert physicians, nurses, medical technicians and hospital fcorpsmen, on call 24 hours a...

P

Tune the receiver to the high end of the respective amateur band and adjust the capacitors in ic Antenna and rf portions marked on the chassis. Then time to the low end of the band and time the slug timed coils in the same section. Each time peak for maximum S meter reading and repeat several times for each band to obtain optimum performance. The proper adjustments for each band are plainly marked on the 75A1 chassis. Tune the bands in the following order 80, 40, 20, 15, 10, 11. The frequency...

Westcom Engineering Company

Box 1504 Son Diego, Cal 92112 CONVERTER SALE three transistor, 50-54 Mhz input, 14-18 Mhz output, wired, tested printed circuit. Crystal controlled, 6 ppd. Adjustable, 55 ppd. Syntelex, 39 Lucille, Dumont, N,J. 07628. ON AIR NOW Apache-TX-1 SB-10 Heath SWR Bridge Xtal Mike All new tubes. First 5159,95 cash or check takes it prepaid, J, F, Weatherly, 473 Auburn, Newton, Mass. 02166. RCA CMV-3 52.525 f. m, on a. c, 2nd limiter metered guaranteed 75, 140-D high band on a gt c. no case 45....

Jack Grimes W4llr

In Fig, 65 page 9, the collector resistor from the 8.2 battery terminal should read 100 K, not 1 MEG as it appeared. In Fig, 7y page 10 the vacuum tube version of Fig, 6 a 200 K resistor was omitted from the diagram. To correct this error, omit the line from the plus 250 terminal to the 5 1 K resistor as shown and insert a 220,000 ohm 1 watt resistor from the 250 volt terminal to the junction of the 1 Meg, resistor, the 25 mF 25 volt capacitor and the 5.1 K resistor. Approximately 6 volt...