Qec

Caliiornizj rrij-denti include 4 lalca tfl . m BEAUTIFUL SVNCHRINBUS 21 HOUR ELECTRIC CLKKS m FDR LOCAL AND ONE FIR ZULU OR H TIME VtM RICH LOOKING WOOD CA& INET CONTAINS TWO TEN, (N H MATCHED CLOCKS WITH CHROME TfllfA i IfiGS AND STUINO TO ChiHANtt A NT ROOrt. tEO SWE6P ttCOND HANDS. SHAPING WT. 30 L& J Allow 11 > 00 for packing and shipping, Cslif 'nifl rt l-dflntj include 4 tel tari.

Space Age Keyer

Planar epitaxial integrated circuits for reliability, No tubes No separate transistors* Precision feather-touch key buifMn, Fully digital Dot-dash ratio always perfect. No polarity problems Floating contacts switch l-amp, (tugged solid construction will not walk. Send QSL or postcard for free brochure. 3. Hop Hopple W3DJZ 9. Edward Bauer WA9KQS 20. Dick Tesar WA4WIP

Military Test Equipment Data Handbooks

Published 19G1 by Frederick Research Carp. Vol, Volt Current Ale as. Equip, Vol. Freq. Meafi. Equip, Vol. 3, WaveEurru (Oscill Bcop ) t quip. Vol, 4. Signal Gsn. EquIp-inent. Pour Boutid Booka (il) pounds) NEW, 5.50 fJoitpiid. payment w order. We AJso buy for Cash, SutdLus TasUeti, Transmitters, Ree vers. Etc. Especially Airborn CoHina. RITCO Electronics, Bo* 156, Annandate, Va. 22Q 3, Phon* (703) 560-5460, Oak Variable Capacitor. 30-1700 mmf. Four section. 7.5-425 mmf, per section. w x h x 6Va...

Vanguard Labs

Y. 11423 Knight-Kit Solid-State Regulated Low Voltage DC Supply The new Knight-Kit solid-state power supply, with continuously variable 0-40 volts OC and 0-1.5 amperes output, provides an ideal source of power for transistor circuit development in the shack. This power supply, the model KG-663, is regulated for both line and load variations and features variable current limiting which automatically limits short-circuit current to a safe value. Two meters on the...

Kdqb

Hiii-ris, Transistor High-Frequency Converters, QST, March, 1963. L A crystal Controlled Converter lor 10. 10, aud 1 u .Meters, The Kadio Amaieur s Hand, took, li G2 through lUGo editions. After a coaxial line has been hooked up to an antenna, most hams wrap it with plastic electrical tape and spray it with lacquer to waterproof the cable and protect it from the weather. This method works quite well for a little while, but after several months exposure to heat, cold, rain and our polluted...

Ham

The Amateur Television Anthology is a collection of the technical and construction articles from the ATV Experimenter edited by WOKYQ, If you're interested in TVP you'll find this useful. 3 CW by W6SFM explains code and how to learn it. 50 TEST EQUIPMENT by W6VAT tells you how to build some useful ham test equipment. 50' W4WKM is a necessity for the surplus-using Ham RTTY 2,00 Please send me the books checked at left Index to Surplus 1.50 11 a, . _ _Ham Simplified Math .50 Address VHF Antennas...

Order Blank

State Zip or Country Subscription to 73 I year 5 J 2 years 9 3 years 12 Life 50 New Renewal Q Extension T Car and Feeding of Hem Club SI Revised Indei to Surplut SL50 3 Simplified Math 50 Z Test Equipment 50 lt U Binders S3 per year 0-41, 2, LI, M, 41, it Back iisues 0 N, 0 are 1 F l 6l through present are 50i Prtquucy Measuring, Coils and Ham TV ore out of prini, Subscriptions take sfi to eight weeks to process. Price 2 per 25 words for non-commerciol ads 55 per 25 words for business...

Complete

HASKELL DALLAS, TEXAS 75204 2T4-LA6-2023 When Heathkit brought out their singleband transceivers a little over three years ago, they immediately became very popular. They were low in cost, versatile, compact and ideal for the ham who wanted to move up to SSB with a minimum of effort. Now the people out in Benton El arbor have gone one better they have introduced a new set of single-banders with even more features than the original These new single-banders feature upper and lower...

Some Of The Outstanding Features

Field effect devices in RF and Mixer for low noise figure less than 2,8db plus freedom from cross modulation to .1 volt. BARBER TRAVEL we like to think of ourselves as the ham's travel agency. For Ham-Hops, personal tours, or DX-peditions or make it a fly-drive tour we loved it . You pay no more for expert assistance, and you don't have the headaches. BARBER TRAVEL - Ruth Barber K1 HF -Jack Barber K1PRT 711 Cottage Grove Road, Bloomfield, Conn. 06002 203 242-2279. That's right. Set your FCC...

Kka

Juat a short comment on your excellent Articles last year I taught electronics in a high school vocational prngram and used many of the design and more technical subjects as teaching aids. Your topics are so up to date that I have incorporated some of the circuits I've found in IS in the R amp D taboratory at which I'm presently employed. Edward F. Steinfeld, Jr. 7587 Rosclawn Drive Mentor, Ohio 44060 t seem That. 73 is made from better stuff then Brand X or Brand Y. It is noticeably more...

Hayward Street Manchester Nh

The tea rooms along the way where a fairly good dinner could be had at a fair price. This was the only good meal I would have each day. During the late afternoon you know a feller gets hungry. I finally got to the point where 1 would down those dried salted little fish and dried salted other meat along with the natives. It did not give me any trouble that 1 know of- This is one time that I wont native. I remember we stopped one day at a roadside tearoom in Northern Rhodesia, The temperature was...

Please Include Your Zip Code When You Write

The current through the string of NHj-2's will vary inversely with Rl. f they are drawing about 5 mA at 300 V, they'll draw about 100 niA at an input voltage of 750. Also, Kyle starts out with plate and screen both at 250 Y Screen reg, none In mentioning these, were departing from the usual policy of reporting on semiconductors recommended by readers who've used them, but they look especially interesting. Amperex calls one TAA320 a BIFET -it's a MOSFET and conventional silicon transistor on a...

Wanea

A simple device that for some reason has fallen into oblivion is the Faraday screen or shield. It is still important enough to the FCC that it is included in the fech and All of you, I am sure, know that a Faraday screen looks like a big comb with one common wire with a lot of other wires running out from it and not connected on the other end. The F'araday shield eliminates capacitive coupling between coils. The desired signal should be inductively coupled because this is tuned to the desired...

Kytb

We believe the new 2K-2 is the finest li ear amp ifier ever made for the amateur service The new 2K-2, Floor Console, 2KD-2 Desk Model and 2KR-2 RF Deck are destined for greatness. Following the pattern of excellence established by the world famous 2-K, the new 2K-2 reaches previously unattainable levels of achievement. Its exceptional simplicity of design, extraordinary concern for reliability, superb linearity with attendant signal sharpness, remarkable power output and modern design all...

Name

please pnnt Address the one which is easiest for the home constructor to erect then the antenna for you is the cubical quad. Now, the first statement is easily confirmed, It is only necessary to sit on the fence and hear what all of the big and usually rare , DX stations use, I find personally that at least 60 of all European stations use quad antennas. The second statement is usually not so easily proven. If you have ever struggled up a tower with a twenty-meter beam on your shoulder, or...

Rio

PROFESSIONAL KIT BUILDERS All kits professionally assembled. Heathkit. Knightkit, Eico, etc Also any special circuits constructed. Write for details. Kitco, 143 Highgate Street. Needham. Mass. 023 92. CRYSTAL FILTERS 10,7 MC center freq., 40 KC Bandwidth, six section, Herm. sealed. Ideal for VHF. Have several. 3.no ca. p,p. USA WGMGI, 1736 Ridgeview Dr.t San Diego, Calif. 92105. MARAUDER 2B, 2BQ Se Calibra tor Packaec 360 or separate 200 each. W5LVQ, 608 E. Warner, Guthrie, Oklahoma 73041....

Magazine

Work at building for a while, but they must build and try various circuits, Sometimes it helps to keep notes on the circuits tried, but I am always too busy to keep notes and find myself making the same mistakes over again. Fortunately I am clever at filling up chassis holes. After months of building and the unit is finished I may never turn it on again, but after completing this receiver I can't wait to get home and turn it on to marvel how well it works and that I was able to build it. It is...

Info

The full sized forty meter cubical quad. Compare Its size with the barn in the lower right hand corner The full sized forty meter cubical quad. Compare Its size with the barn in the lower right hand corner about 36,750 cubic feet, but that is enough to capture lots of DX Compare the sizr of this antenna with the shed in the picture. This is not the first 7 MHz cubical quad, but it is one of the very few in existence K6PRU used one several years ago and recently W8BAR put one up. If one takes a...

L Kgddo

Quad Antenna

Ratii Lanfranco MRR via Friufi 28 Milano, Italy Over the past few years I have constructed a number of antennas, largely based on data collected from the various ham magazines. In most cases however, wasn't completely satisfied with the results also, the dimensions varied from one article to another and the gain figures given by the authors seemed to be somewhat excessive, L decided hat the only way I was going to get a proper answer was to conduct a little basic research. With the few...

The Big Wheel

HORIZONTALLY POLARIZED 360 GAIN ANTENNA lightweight High Gain Antenna Systems CL-116 2 meter, T6 element 17,50 CL-216 V a meter, 16 element 14.50 CL-416 meter, 16 element 11.50 32 amp 64 Element Stacking Kits Available Squolo is a ful Holf wove, horizontally polarized, onini-directiana antenna. ASQ-2 2 meter, 10 square 5 9.95 ASQ-22 2 meter stocked 16.95 ASQ-6 6 meter, 30 square 13.95 Combine all-out performance with optimum size for ease of assembly oncf mounting at your site. They can be...

Free Catalog

Square Quad Antenna

Describes these and over 250 kits rot stereo hi-fi, color TV, amateur radio, shortwave, test, CB, marine, educational, home and hobby. Save up to 50 by doing the eas assembly yourself. Mail coupon or wrile Company, Benton Harbof, Michigan 39022. Please send modet s D Please send FREE Heathkil Catalog. 21 f9 Inglehart Ave. St. Paul, Minn. A muscular version of the inverted V d pole Thirty some odd years ago, E, J, Sterba developed a form of stacked dipole antenna which bears his name. Although...

N

True blanking action preceding inactivity has separate ANL amplifiers and detector front panel threshold control RF Stage Low noise premium Field-Effect RF amplifier and first mixer tuned circuits employ high-Q toroidal Inductors. Semiconductor Complement 23 bi-polar transistors 2 Field-Effect transistors 10 signal diodes 4 high, Vfo wide, 6'r deep. Weight 7 pounds requirements 12 volts DC 300 ma. maximum., Price from factory DR-30-s Complete regulated power supply for operation of DR-30 from I...

Vfo Radioamateur

The VFO oscillator tunes both 3045 to 3265 kHz and 3315 to 3545 kHz, using the surplus ARC-5, 180 pF capacitor. Tuning barely covers the band, i he ham bands are covered in two steps of about 250 kHz each. he oscillator was switched with a three position switch. The third section uses no padders and covers 4000 to 4200 kHz. The trimmer on band two was set so that the dial matched 3720 on zero and 3500 on band one. A cathode follower was used after the VFO to separate any loading effect on the...