Radio Amateur 10-1969

Latest Howtobuild Data

The new 18th Edition of the famous Editors amp Engineers RADIO HANDBOOK presents complete design data on the latest transmitters, receivers, transceivers, amplifiers, and test equipment. Covers SSB design and equipment, RTTY circuits, and latest semiconductor- circuits, as well as IC Also includes coverage of r-f amplifiers, special circuits, and computers. All equipment described is of modern design, free of TVI problems, Provides a complete understanding of the theory and construction of all...

Miniature Test Laboratory

Amateur Lab Pics

RF Signal Generator AF Signal Generator Resistance Substitution Capacitance Substitution Self Powered 1W* x 3* x 3 ' liilbs, Thanks to transistors and printed circuits you can hold this complete lab in one hand. Not long ago this would have been a whole shelf full of test equipment. 455 khz generator for aligning if's, 400 hz generator for audio circuits. Plus a normal VOM and R& C substitution. Field Strength meter for tuning transmitters. Everything in one small boxl Model SE-400 Mini-Lab...

John Meshna Jr

19 ALLERTON ST., IYNN, MASS, 01904 P. O. BOX 62, E. LYNN, MASS. 01904 MANUALS-TS-323 UR, TS-173 UR, BC 638A, R 274 FRR, TS-186D UP, SSB-100, LM, 5.00 each. Hundreds of others. List 20S. Consalvo W3IHD, 4905 Roanne Drive, Washington, DC 20021. TEXOMA HAMARAMAi The annual Texoma Hamarama will by heid again Nov 15-16-17 at the beautiful Lake Texoma State Lodge. Ptan a pleasant weekend for all. Bring the family. Mail registration fee of 2 per person to Texoma Hamarama, PO Box 246, Kingston, OK...

Concord Nh Fone

Agers, I frequently find that they have no desire at all to make money. This may be apathy or it may be a reaction to parents that idolized money. It is frustrating though to have what seems to me to be a really simple way to almost unfailingly make a fortune and find that no one is listening. How long do you think it will really be until we have space stations parked in our skies making wires across the earth a thing of the past Telephones in the siiirt pocket, FM radio and TV from space....

New Products

Tiany amateurs, tired of using older taxi and police FM equipment, have been looking for reasonably priced new equipment to come on the market, Varitronics has just announced a new solid state FM transceiver designed and priced for the amateur market. It has six crystal controlled channels and runs from 12-15 vdc. j he power is 10 watts input, he unit is built with sub-printed circuit boards of the computer module type, making the unit small enough for easy portable and mobile use. Varitronics...

Vanguard Labs

H, 196-23 Jamaica Ave., Hell Is, N.Y. 11423 Some fifteen or sixteen years ago, in another amateur publication of which Wayne Green was editor at the time, the Q-Multiplier was introduced. It immediately caught on big, and Heath began marketing a kit version which went through several models before it was recently dropped from their line. Except for its use in certain receivers as a notch filter, it has now just about gone out of style with the ham fraternity. It's too bad that this has...

Universal Manufacturing Company

MC NICHOLS Detroit, Michigan 48234 Tel 313-368-0730 Buy 73 binders and win the iove of a beautiful girl. Still only No Visual Gimmick To Distract You Bottd on modern psychological 1 chniqu ThU court will taki you beyond 13 w.p.m, In LESS THAN HALF THE IIM I Atbus Miits 1 m thrss 12 Available on magnetic LP's 2Vt iMtrucUon tape, 9,95 Cassette, 1 0.95 206 Eat Front Stmt floronct Colorado wnich vinua vGUARANTEE YOU V.iLL GET OUT BETTER. New book gives sr p-by-step lhRnift-xions I 1 76...

Miniature Af Generator

Mini Generator

Mini-AF Generator for the laboratory or ham work bench. 10 to 100.000 hz in four bands, sine or square wave. World's smallest. 7H x 3 '' x 4, 2 lbs Built-in AC power supply stabilized to 0.1 The output is maintained at minimum distortion and constant level with FET oscillator and thermistor and heavy inverse feedback. This is by far the single most valuable piece of test equipment. Built in meter for measuring gain of each stage under test, Easy to find weak or defective stages. Output speaker...

Call Direct Use Area Code

Olympic, Los Angeles, Calif., 90064 213 477 6701 931 N. Euclid, Anaheim. Calif., 92801 714 772-9200 Butler, Missouri, 64730 816 679 3127 World's Largest Distributor of Amateur Radio Equipment and low band ops wouldn't spit on VHF'ers. And so it goes. The fact is, we all need each other, for the very life blood of ham radio is its broad diversification. We need all types of operations on all our frequencies. Since DX occupies the hearts and minds of a large segment of our ham...

Microphone Pit Switch In Control Head

During transmission because of the relay current, and some people may not like to wait for the transmitter to warm up. However, this was a good solution in my case because of my style of operating and limited activity on our local channel. If you don't like to waste power, and you don t like to run cables and install switches where there is no room for switches, this system may solve your problems too- Every day we get a handful of wrappers back from the post office with either a change of...

Items Of Trivia

Page 123-124 of July issue appears to have diagrams reversed right When i took my 1st class telephone test almost fifteen years ago, one of the questions involved an FM discriminator and all I could remember was where it was grounded. Still remembering only that, the diagram totally confused me until the text tended to clear it up. Tm sure glad you stay away from space-filling chatter (Operating News) as one of the other magazines uses, such as W6XXX bought a new call book, or WA3XXX put some...