Two Categories To Choose From

Heights of 37- 54-80-105 and 122 fee Heavy Duty Self Supporting and Guyed in Heights of 37-54 feet (SS) 71 88 feet guyed Ease of Operation- roller guides between sections assure easy, safe, friction free raising and lowering. Strength welded tubular steel sections overlap 3 feet at maximum height for extra slurdiness and strength. Unitjue ROHN raising procedure raises all sections together uniformly with an equal section overlap at all heights Versatility designed to support the largest...

Mh

Capacitors two at the hot end of the 10-volt filament, one from the BNC connector, and one across the filaments. The 813 sockets were wired as shown. The pins, except filaments, were grounded under the 8 32 pan head screw. I he back wall was made from aluminum held in place with aluminum 90 angle, A five pin socket was used to the common ground and the incoming 115 volts ac. The Johnson feed-through insulator is shown to the right side with shielded high tension wire. The top of the flat deck...

Ipbt Coaxial Relay

Frequency ran e 0 to 500 mc. Power rating 1 kw. VSWR Less than 1 1 1 at 100 mc. Isolation greater th n 40 db at 100 mc. Life over 1,000.000 operations 50 ohm impedance. IP6T COAXIAL RELAY FOR SWITCHING of r.f. SOURCES Weatherproof. Common connector may be switched directly to any one or combination of six positions Frequency ranpe 0 to 500 mc. Power rating 1 kw. VSWR le s ihan 1.1 1 at 100 mc. Isolation greater than 40 db at 100 mc 1,000,000 operations 50 ohm impedance. CONNECTORS...

Quement Electronics

SAN JOSE, CALIF. Your Collins Headquarters Fred Blechmari K6UGT 23958 Arch wood Street Conogo Park, California Using an electronic switch, you can disploy two traces simultaneously on a scope, such as input and output of an amplifier. Film speed 125, f 22, 20 second exposure. Fred Blechmari K6UGT 23958 Arch wood Street Conogo Park, California While the home experimenter or TV technician normally doesn't need proof' of proper performance, there are many times when waveform...

Info

MATERIAL DIFFERENCE IN USE IN 135 LANDS Congratulations on the ALC for SSB1' article in the 1V65 73* As Kyle points out, there has been very little written on such an important SSB subject, mine (CO April f61) and two other references, I was about to write an article myself to bring things up to date and out in the open. One thing that I have never understood is that my material was written and submitted to the two amateur radio publications of the day five years before 1 finally got it...

Solidstate

The most effective instrument available for amateur applications and the greatest versatility ever provided. WHAT ARE YOUR OPERATING REQUIREMENTS Whatever the mode, whatever the bands, whatever the conditions of noise and interference and weak signals, you'll find your needs met without compromise in the solid-state DAVCO DR-30 receiver. Sure, it takes 25 transistors, 15 diodes, 14 crystals, a Collins mechanical filter and much else, but check the specifications the DR-30 simply does things no...

Mission Ham Supplies

33 6 Main Street Riverside 3, California 92501 Phone 683-0523 (area code 714) 199.00 369.0 219.00 44.00 39.00 59,00 65.00 189.00 85.00 199.00 229.00 285.00 259.00 44,00 39,00 179.00 65.00 165.00 129.00 189.00 29,00 39,00 24.00 27.50 65,00 19.00 Heath Apache Heath Marauder Johnson Challenger Johnson Valiant . Johnson Courier (like new) Johnson Navigator Johrison invader 2000

R Arr Receiver

1,5 18 Mc, Has 2 Collins TTO Oscillators 1 Excel, cond 59.50 RECEIVER SPECIALS PRIDE OF THE NAVY Cheeked out. Guar. * AC Power Supplies RBA l5-i. 00 Kr. Direct reading freq. dial ____ 95,00 RSB 6 0 Ki 4 Mc. Direct ratline frcri. dial 75.00 RBC 4-27 Mc. liirt L reading dial -------- 95.00 We wiM pay top dollar if you will write its IMMEDIATELY We urgently wont BC-160 (models H and I preferred), SP-600, R-3B8, R-390, TED, TC5. TRC, CV43 APR-9, TN-131 APR-9, ARC 34,-52. Test Equipment, Aircraft...

Rf Signal Generator

Wide Range 150 KC to 350 MC Completely Wired Guaranteed one year includes Battery Other Instruments Available and CabJe Donald Smith W3UZN Kent Mitchell W3WTO If you are like the usual ham you enjoy listening to your favorite amateur band as much as possible. However, monitoring the local gang or keeping a lookout for band openings is not always convenient. When you're working in the basement shop or in the garage you re often not within audible range of the shack. The obvious solution to this...

Polaflexer

A few months ago at the IEEE show in New York City, the Tung-Sol Electric Company introduced a new tube, called the 8236. It is a multipurpose beam power pentode built mainly for use in horizontal output circuits and rf power amplifier. In most cases it will directly replace the 6DQ6, resulting in cooler operation. The tube itself has a carbon anode, and this type takes plenty of abuse, and a boro-silicate, or hard glass bulb. This lets the tube operate at 250 c continuously. In ICIAS amateur...

Cq

Radio Experimenter

Shack 5 RCC GREEN DXCC ARC-5 PLAYBOY 73 Tests The Waters Mobile Whip and a Those of you who have been following my mishaps down through the years know that along in 1957 I discovered the Porsche. Well, IVe still got my original Porsche and it is a lot of fun, despite a bookful of difficulties with the factor> * and their dealers. But somehow, up here in New Hampshire where the distances are far and the weather is cold half of the year, it seemed prudent to go (or some-liiing sedanish, with...

Amp Diode Sale

Buy 3, get the 4th free. 50 VOLT 2,00 Mounting hardware for above, washers, insulators, nut. 20c 88 MH TOROIDS. Two types available. Open and potted. Used for many applications such as power supplies and teletype. Open style 50c each, 12 5.00 Potted style 65c each, 12 6.00 TO-18 case, similar to 2N960 family, 300 mc, 300 mw, 12 volt, each guaranteed to oscillate. HEAT SINK, ALUMINUM, DOUBLE FIN. With 150 watt transistor 2N277 1.5x4.8 inches 1.50 Without transistor 50c 3.5x4.6 inches 2.50...

Newtronics Corporation

Mosley Toro Antennas

3455 Vega Ave Cleveland, Ohio 44113 They say ihere is nothing new under the sun ' Well, I found something which really opened my eyes a three-band, trap-type, grounded quarter wave antenna using an unusual tuning method which, in effect, makes it an automatic band-switching antenna ' Designed for the 20, 40 and 80 meter bands as well as a type for the novice 15, 40 and 80 meter domain, the whole assembly is only 58 feet long over-all and weighs but two pounds Furthermore, it can be erected as a...

Vhf Equipment

Ciegg Venus demo Clegg Interceptor 2 amp 6M Rcvr, Heath Shawnee Lafayette HE45B w VI 0 . . . Lincoln 6M Transceiver Poly-Comm-6 amp 2 99.00 459.00 339.0Q 159,00 219.00 219.00 179.00 109.00 59.00 239.00 Mission Ham Supplies 3316 Main Street, Riverside 3, Calif. 92501 Attn Birr Hufluist, K6L0S Ship me the following

Parametric Amplifiers Wabs

Vacuum Tube Schmitt Trigger

Parametric amplifiers are probably the most practical way for hams to get a low noise figure at VHF and UHF, This book is the only one available that covers both theory and practice. 2.00 W6VAT. Every ham needs to have and know how to use test equipment. This book tells you how to make valuable ham test gear easily and cheaply. It clso covers the use of test equipment. 50c HAM RTTY. This is the most complete book on the subject. Written for the beginning TT'er as well as the expert. Pictures...

To Ac Power Onoff Switch On Xcvr

Note that the winding labeled 1 1 2 vac should be 1 2.6 vac. This circuit provides the following voltages 800 vdc 300 ma transmitter 275 vdc 100 ma receiver -100 vdc 50 ma adj. bias 12.6 vac 3.5 amps filaments 12.6 vdc 100 ma PTT relay The transformer used in this circuit was from an old Majestic TV. If you have an abundance of goodies, perhaps you will have one of these jewels. If not, Merit will gladly sell you one. The Majestic transformer number is...

Variable Capacitors

My customers tell me I've the biggest variety, the largest stock, and the best prices in the country From subminiatures, even butterfly amp differential, to GIANT CHEESE SLICERS, terrific SAVINGS. B-BUD, C-CARDWELU E-E F JOHNSON, H-HAMMURLUND Sub mrn a Lresr with 3 y 16 slotted shafts. E 160-104, 1.8 to 8.7 fiimf 50 ea 4 1,75 1,1 to 15 mmf, brass plates 69c ea 3 l,95 H 00-1808, 2.8 to 27.8 butterfly 1.00 ea 4 3,75 E 160-205, 1.8 to 5.1 mmf butterfly 1.00 ea 4 3.75 3 to 10 mmf, differential, V x...

Buy Of The Year

Rca Speech Clipper

Q 1 AMP EP0XY 10 lor St We've had so many requests from 73 readers for a want ad section that we're starting one against our better judgment. After all, we're dreadfully overworked now and are bound to have even more of a headache handling all those tiny ads. But you say you want it, so please follow these instructions when you submit ads Price 2 per 25 words for non-commercial ads 5 per 25 words for business ventures. No display ads or agency discount. Include your check...

MODEL

Block Diagram Mixer Mixer Audio

PLUS A FULL LINE of single and multiple-gang units with choice of UHF, BNC, N and Phono-Type connectors write for literature . The New Switching Units shown above have the following specifications Power Rating 1KW amplitude modulated, impedance 52-75 ohms Frequency Range Audio to 100 MC Cross Talk 45 db between adjacent outlets at 30Mc 60 db between alternate outlets. See your focal BWJ Distributor or write direct tor literature A SUBSIDIARY OF RENWELL INDUSTRIES, INC. BRISTOL, PA. Telephone...