Education and

The following is reprinted by permission of Look Magazine and Mr. Leonard I think this last chapter of his book describes the magic quality of amateur radio. LIFE HAS ONE ultimate message, Yes repeated in infinite number and variety. Human life, channeled for millennia by civilization, is only just beginning to express the diversity and range of which it is easily capable. To deny is to swim against the current of existence. To affirm, to follow ecstasy in learning in spite of injustice,...

Info

Coils L-2, 3, L 5, 7 all tuned to frequencies shown on schematic with 9-35 ceramic trimmer capacitors. Coils L-2, 3, L 5, 7 all tuned to frequencies shown on schematic with 9-35 ceramic trimmer capacitors. or pocket knife will cut that one for you. Some experienced builders may question the labelling on the rf and mixer sockets, so an explanation is h order. Considerable experimenting was done on this prototype, with other transistors, including FET's and the leads may seem slightly scrambled....

Howard W Sams

Advanced & Extra-Class Amateur License Handbook by Howard S. Pyfet W70E. Provides alt the information you need to obtain your advanced or extra-class license. Makes preparation for these top licenses far easier for present holders of lower licenses. Includes sample questions for each exam. 192 pages. 20649, General-Class Amateur License Handbook by Howard S. Pyle, W70E. A compEete guide, including typical FCC test questions and answers, to help you prepare fqr the Technician, Conditional or...

Metering Circuit

Sarkit Lin

L Metering cir> cuit for the sided S R bridge. Ed Lawrence W 5SWD 615 Sherwood Richardson, Texas 75030 After reading the articles in 73 on SWR bridges that led up to the double-sided hoard pick-up I decided to try my hand i l building one, but on single side board. Several of these boards have been etched and units assembled, and all have been satisfactory, 1 have used mine, with a 200 micro-amp meter, from a k v on the low bands up to a 'Twoer, with no problems with sensitivity. Fig, 2....

Motorola Fm Equipment Schematic Digest

91 pages l 2 x I7M) of schematics, crystal information, alignment instructions, service hints and specialized information, 3,95 post paid. 1100 Tremont Street Boston, Massachusetts 02120 Lewispaul Electronics, Inc. 303 West Crescent Avenue Allandale, New Jersey 07401 ATTENTION 160 METER FANS Change any coax fed 75 80 meter inverted vee dipole into an efficient 160 meter antenna. Adapts within seconds, right in the harnshack. PL-259 and SO-239 connectors. Perfect for residential areas. TOP BAND...

Fair Radjosales

Dept. 73 * Box 1105 * LIMA, OHIO 45802 24 PAGES crammed with Gov't Surplus Electronic Gear-the Biggest Bargain Buys in America It will pay you to SEND 254 for your copy -Refunded with your First Order BC-645 TRANSCEIVER, 15 tubes, 435 to 500 Mc. Easily adapted for 2 way iP ffi i voice or code on Ham, Mobile, Tetevision Experimental and Citizens Bands, g jL jjjflP With tubes, less power supply in factory Brand SPECIAL PACKAGE OFFER BC-645 Transceiver, Dynamotor and all accessories, including...

Magazine

DO YOU KNOW SOMEONE WHO IS BLIND who would like to receive tape recorded excerpts from 73 without charge For details write IEEE, c o Lester W. Cory, SMTI, North Dartmouth, Mass, 02747. HQ-145 WITH CALIBRATOR, good condition 130 also Dx-60 with HG-10 VFO 40. WB6LNQ Bob Nottelmann, Rt. 3, Box 60, Chicor Calif. 95926 20TH GRAND RAPIDS Amateur Radio Assoc. (ARRL sanctioned) State Convention May 9-10, 1969. Write GRARA Box 1333, Grand Rapids, Michigan 49501, for tickets and information. SALE...

Military Electronics

ffrnuency Rar> )e T y E xcotleni Li sect Likeisievv Brgnri J ECElVERy tO'tiDlGie with 1 uhci New 19g 550 kc bc-453. sir- G 9 1 M BC 45& . . Si 1.5 3 vic h -25 1 RA SMiTTfRS Comf-'leic-wit* Tubes 4-6 3 mc bc-457 . . s 6-95 . 5 3 i Mc nc 45a 6 95 7 -9 I Mr BC 459 Si 1 95 2 i 3ml t 18 - - ----tJJi.aii.miUui ,. ,, & tq.y5 i 4 Mc T-19. , S V0 50 14.95 BC 906 FREQ METER. Cav.ty Tvpe 145 to 23b Mc Complete*mh an t nria ma charts. LIKE > JEW . ._. . . TFRNK Either 2,1 ft Depa& H with...

Books For The Amateur

Amateur Incentive License

Shows how to build novice transmitters, conveners, all-band phone-cw transmitter, and others. Provides detailed, easy-to-follow buiiding and operating instructions. 136 pages. 20045, Ham Antenna Construction Projects 2nd Ed. by J. A. Stanley. Practical guide to custom-building your own antennas describes all types of arrays, installation, tuning up and testing shows you how to make the best use of antenna power. 160 pages, 20654, by Robert M. Brown amp Torn Kneitel,...

Goo

Suggested grading in 144 MHz rf AMP Stage Biased At 6 to 8 mA. It only costs 11 cents. Good from 100 kHz to High Freq. corner unpredictable without Fx Measurement. The 2N3563 costs 30 cents. It is a little better FtMIN 600 noise performance similar, 200 MHZ power gain quaran-teed MIN 14 db. Hundreds of 2N5130 transistors have been purchased by local VHF FM'ers. They use them interchangeably with 2N918's for local oscillator multiplier chains, if strips, trigger circuits and mixers. Everyone has...

New Concept In Its Exciting Beam Antenna Program

Any knowledgeable DX'er will tell you the secret is 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 antenna program moves forward. NOW You can have the antenna of your choice at the same incredible saving. Hy-Gain TH-3 Jr. antenna 480.00...

Prestel Field Strength Meter

Frequency Range 40 to 230 and 470 to 860 Megahertz, Calibrated outword from 10 to 50,000 Microvolts, Nothing makes It easier to properly and speedily find the correct place to install TV, FM and Communication Antennas. You can measure and hear the signals battery economically powered with this 41 2 volt unit. There is nothing else like it WIRE, WRITE, PHONE COLLECT WE PAY FREIGHT ON ALL PURCHASES WE MAKE 548 Broadway, New York, New York 10012, Phone 212-925-6000 HAMS DON'T BUY USED TUBES...

Tecraft

. Jy JL Si U . ' fc h 1 1 VST If We will TOP any advertised or written price from any other dealer. We trade on both new and used equipment and we service what we sell. Instant credit on both new and used equipment. General Electric revolving charge and Master Card Credit.

Galaxy Proudly Unveils

The Powerful New Galaxy GT-550 TRANSCEIVER The Beautiful Matching Galaxy Speaker Console The New Galaxy Wattmeter Antenna Selector The Powerful New Galaxy GT-550 TRANSCEIVER The Beautiful Matching Galaxy Speaker Console The New Galaxy Wattmeter Antenna Selector You asked for it now it's here The new GALAXY GT-550 and a complete line of handsome matching accessories Your suggestions made it possible. We took your ideas added some of our own and went to work, We built in new power, new...

Simple

With mountain topping1 becoming a popular sport on the YHF bands, a low power portable transmitter for 50 MHz can be a handy item. This article describes such a transmitter that is not excessively difficult to build and provides a good signal on six meters. It was final v decided that the one watt power level offered a fair compromise between battery weight and power. Only two stages are needed to generate the desired power, and this simplifies construction. Both the oscillator and amplifier...

Ox Oscillator

Crystal controlled transistor type Lo Kit 3,000 to 19,999 KHz Hi Kit 2Qr00Q to 60,000 KHz Specify when ordering SAX-1 Transistor RF Amplifier 3.50 A small signal amplifier to drive MXX-1 mixer Single tuned input and link output. Lo Kit 3 to 20 MHz Hi Kit 20 to 170 MHz Specify when ordering PAX-1 Transistor RF Power Amplifier 3.75 A single tuned output amplifier designed to follow the OX oscillator. Outputs up to 200 mw can be obtained depending on the frequency and voltage- Amplifier can be...

Jefftronics

Cleveland, Ohio 44109 R 3I Command receive I 8-132 mc AM 9 uhv, 2 uv sensitivity. No dial We give knok tuning uph, Lccfe cal data Needs power supply dt controk as other Commands. NEW r . , 27. SO R22. Commend rcmm j40 l 60q kc, with knoh and tuning graph amp technical data. RUA Mod eti 05Ter 19 amp 5 KC, 85 Kc no dial. Brand new . 51 2 5 R23 ARC-5 Command revr Q-5'er 190-550 kc, has dial, w tnoh amp lech, l at suamriU'ftl. tested 14 .95 SP-600JX Receiver, 54-0 kc to 54 mc, in...

Variable Capacitors

Four section, 40-550 mmf per section. For a total of 2100 mmf .010 air gap. Wt. 3 Cardwell PL-7013. Dual section. 13-260 mmf per section. .030 spacing. Wt. 1 Ib 2.50. Johnson 500E20. Single section. 19-488 mmf .045 spacing. Wt, 4 lb. Reg. net 10.50 Wow Kingston single section. 10-245 mmf, double bearing, .030 spacing. Wt. 1 Ib 1.00. Bud MC-1855. Single section. 7-100 mmf double bearing- .024 spacing. Reg. net 2.30. Write for free list of other variables. An p CAI CC 181...

Th

Don't clutter up your home with all that stufft Better to clutter up our warehouse -- and get paid in the bargain. Don't waste time asking us for prices. Tell us exactly what you want for your Gen Radio, H-P, Tektronix ARC, GRCt TED, PRC, VRCt ARN, URR, APN and other military commercial gear. Write Today Will pay Hi, unreasonable, fantastic price for Navy 10 W. Audio Amplifier in cast aluminum cabinet. Urgently need Models AM-215A, -B, -C, -D U, What have you 4365 W. Pico Blvd., Los Angeles,...

Send Order To Peterborough

The following items, all bargains offered as special clean 'em out prices. Some are one or few of a kind, some we just want to make room. Brand new Syivania flashtube and that's correct, 50,000,000 lumen output. This will make a fantastic psychedelic lighting effect. Spec sheet with each 10.00 POWER SUPPLY Regatron, programmable model 231, unchecked. 300 volt, 100 ma. 4CX1000A tube, brand new 50,00 RCA 5819 PHOTOMULTI PLIER, New 10.00 lft good for parts 2 to 18.1 Mc 1 w ffl...