Editorial By Wayne Green

Twenty years now and I'd like to see an end ahead somewhere, What have I to offer Well, if someone wanted to take over the magazine as it is, it isn't a bad deal. We have the staff and the plant to provide a good income, plus a house to live in. The house is a bit crowded and the living is certainly informal, but it is one of the nicest areas in the world lo live. What is such a business worth these days Some estimates are that it should be worth about the yearly income. Others put it at about...

Listening

This means that nothing Jess than a high speed web offset press is suited for the job, with fully automatic folding, binding and mailing machinery attached. Even with all three of our presses running day and night it would probably take about three months to print an issue of the magazine. How is 73 doing in comparison to the other ham magazines We do have a considerable advantage by virtue of some two years of selling 73 readers on the fun of FM. This is the most rapidly growing...

Fmfmfmfm

Frankly., I am so sick of nothing but FM in 73,1 could puke. Until Ken got on this FM binge I have always considered him one of the best of writers, BUT as an Editor, he stinks. Kayia was at least versatile and put in a very good selection of material -a very good editor. If 73 is going to stay an FM publication please stop my subscription and refund balance of iny new 3 yr sub. I paid a few months ago. I have been a ham over 41 years now and have never canceled out from any mag before. Have...

Cap Kits

Check or money order enclosed. Ship C.O.D. MAILING ADDRESS Do you have a beam antenna and not know it Herbert S. Brier W9EGQ 385 Johnson Street Gary IN 46402 If your major antenna problems are deciding whether your new rotary beam will be a yagi or a quad, or a multibander or a singlebander, this article is not for you. We are aiming at two groups of amateurs. Those in one group consider themselves lucky to have any antenna at all. Any antenna they put up...

Motorola Mobile Specials

Contains two separate 60W xmtrs and single receiver. Complete w accessories T-supply 10 in. housing. Dual squelch PL rcvr, Xmtr runs 18W out. Complete w accessories. (Dash or trunk mounting.) T-supply 10 in. housing. Has fabulous G strips. Xmtr is 30W type. Complete w accessories. (Dash or trunk.) T-supply 10 in. housing. G xmtr and G rcvr. Xmtr runs 50W out. Complete w accessories.

Freck Radio Supply

38 Biltmore Ave., Asheville, N.C. 28801 (704) 254-9551 Send for our free list of used equipment over 300 pieces to choose from Also new in stock - Collins - Drake -Kenwood - Galaxy - Tempo - Signal I - Swan WE TRADE HIGH TRY US Bank Americard - Master Charge Tenny Freck W4WL Sandy Jackson Mgr. Harvey Nations W4VOV This, together with 1 2x1 2x1 16 in. aluminum angle, four rubber mounts, a 6 1 8 x 3 15 16 in. aluminum panel and mounting hardware complete the packaging parts list which is detailed...

General

Range 143 to 149 MHz, 2 MHz spread Supply voltage 11 to 16 VDC. Negative Ground 13.8VDC nominal Current Consumption .15 amp receive standby. 2.4 amp transmit Hy Gain 3.5 db gain mobile whip antenna Regular Price S26.Q5 Standard SR-C826M 2M Transceiver with Mic. Regular Pnce S339.95 Buy the SR-C826M and we will include the Hy-Gain Antenna at no charge and pay the transportation charges to anywhere in the 23044 S. Crenshaw Blvd., Torrance, Calif. 90505 Telephone (2 3) 534-4456 This advanced...

Spacing Specifications

Polarization is horizontal with a very wide beam pattern the main lobe seems to be about 35 degrees, or just off the right front corner, with a null off the left front corner sighting the beamed direction. For vertical polarization, just turn the whole works on its axis 90 degrees, so that the feed point is now on one of the sides. Feeding at the center of the vertical element will give vertical polarization, and at the center of the horizontal wire element will give horizontal polarization....

Jefftronics

Cleveland, Ohio 44109 C6 04 1-W Audio Power Amp 2.6U C6005 2-W Audio Power Amp . 4.35 C6006 4 W Audio Power Amp, ,. 5.60 JUNCTION FETS DUAL-GATE FETS F2004 VHF RF Amp-Wlixer S2.50 F2007 VHF RF Amp-Mixer Diode Protected LOW-NOISE 2.6 dB' 200 IWHzS1.B5 See Ken Sessions' article Something Mew In PC Construction - March 73 Magazine, Page 61. Qr our AO in the April issue. Or write for details. For more HEP devices, see Our AOs in the Feb. and March issues of 73 Mag aiine. Or write...

S Ss

ARC-R11A Modern Q-5 Receiver 190-550 Khz S10.95 ARC-R22 540-1600 Khz Receiver with tuning graph S1 amp .35 R-4 APR-2 Receiver 234-258 MHz. 11 tubes, NEW . . . S8.95 AN APR- 4Y FM amp AM RECE1VERFB for Satellite Tracking High precision lab instrument, for monitoring and measuring frequency and relative signal strength, 38 to 4000 Mc, in tuning ranges. For 110 v 60 cycle AC. Built-in power supply. Original circuit diagram included. Checked out. Perfect. All tuning units available for above....

New Low Price

89 WASHINGTON S .'REET MELROSE, MASSACHUSETTS 02176 TEL 617-662-7700 f TWX 617-665-5032 xce ence in C ommunicu tiom Since 1914 There are some people who just cannot learn the code, and I guess I'm one of them. It's no use trying again, I'll only fail the exam. Sound familiar If you really think like that, you are right you will never team it, even though you can. For those who truly believe that they cannot learn the code, and who have actually tried, I would like to relate my personal...

Swan Triband Beam Antennas Reach A Lot Farther

The outstanding performance of our antrnnav permits precision factory adjustment. These precision tunctl raps result in maximum forward Sain ami front-to-back ratio from each Swan antenna. Performance is comparable to single bdoti antennas having the same number of elements. Before you select your antenna compare the Swan tribandcis fratiiri- fur fi tiiiri- with illicr brands. They reach i lot farther, for a lot less, 4 e ejhent Model TB-4JS 119 3 element Model TB-3H 99 3 element Model TB-3 84...

Info

An invaluable accessory for any shack Accurate counting, 1 Hz to over 15 MHz Automatic trigger level for wide range input without adjustment New 5 MHz Scope - 119.95 Kit 179.95 assembled The most versatile piece of test equipment you can own All solid-state design for high reliability, superior performance Wide DC-5 MHz vertical channel response Switch-selected AC or DC coupling for greater versatility Frequency-compensated 3-posltlon Input attenuator High impedance FET input to minimize...

The Swan Twins

The remarkable success of the Swan transceivers has been based on our continuing policy of giving the amateur radio operator the best possible equipment at the lowest possible price. This is called Value Engineering. Now we at Swan have applied Value Engineering principles to the fabulous Swan Twins, and the results are truly remarkable. With their superb selectivity, precision tuning, wide versatility, and natural voice sound, the Swan 600T and 600R offer you the complete amateur station, with...

An Introduction To Amateur Fivi

Heath Ib101

Sessions, Jr. 96 pages of information, including current standards of deviation, tone frequencies, and operating channels. Includes an updated FM repeater directory, a catalog section of ALL FM MANUFACTURERS and dealers. Plus A complete bibliography listing all articles published since 1968 in FM Anthologies Vols. I and II , 73, HR, QST, and CQ, The only thing remaining to be done at noon was the connection of the primary power cord, final checkout, and a calibration procedure that...

Arrl

1 have been a Wayne Green supporter and agreed in his criticism of ARRL. I feel that he's done amateur radio a great service by opposing the dictatorsliip of ARRL. Would think it a good idea to publish a list of active nets on various bands, say once a year. A suggestion by you would elicit contributions, and it might well be a useful service in traffic handling. me it seems .is thrilling as getting a new telephone installed that is tied to a 100 party line. Maybe the thrill is itl trying to...

Tbem

TYPICAL TELREX MONO-BAND ANTENNAS I 5M31 7 - Monarch, 10 DBD, 3 EL, 4 KWP, 2-1 2 O.D, 17' boom 20M326 - Monarch, 10 DBD, 3EI., 8 KWP, 3-1 2 O.D, 26' boom 2M609 - Monarch, 14 DBD, 6 El., 6 KWP, 1 O.D, 9' boom 2M814 - Monarch, 16 DBD, 8 El., .8 KWP, 1,375 O.D, 14' boom 6M516 - Monarch, 13 DBD, 5 EI., .8 KWP, 1.5 O.D, 16' boom and many, many more send for PL-71 Dept. C

New Concept

Electronic Overload Relay Avanti

Out of research comes increased performance. Avanti's unique ARli-257 2-meter FM orani is engineered to give you more gain and all around higher performance than any other antenna of its type or price. The patented tapered skirt configuration produces 4.17 db gain measured over Vi wave ground plane plus a low angle of radiation that has proved effective in Eliminating dead spots. No coils or transformers to detune or burn out . . . unaffected by temperature and humidity. The small...

More Letters

Let's have more covers like the April issue. Wow 1 suspect the column by Fred Mocking Getting started in Radio was some sort oi substitute probably-intended for Radio Today but I want to say thought it was great. I am an appliance operator and I would like to see this column become a regular feature. Out of curiousity, how many hams wrote in asking how come your April cover girl was using the TR-22 without a ticket Let's not leave openings like that Is that an old J-3 8 key in the lower...

Calgary Stampede Contact

The Calgary Amateur Radio Association announces that it will operate station VE6NQ from the grounds of the Calgary Stampede from July 8-17, 1971 inclusive. The schedule calls for operation from 1 900 to 0500 GMT daily. Prevailing band conditions will dictate which frequencies shall be used at any time. Operating frequencies will be near or at 3.560, 3.780, 3.825, 3.900, 3,943, 7,060, 7.190. 7.225.7.270, 14,060. 14.150, 14.250, 14,336, 21.060. 21.240, 21.300, 28.060, 28.500. 28.600 MHz, Several...

To Rf Stage

Lbo301 Manual

Simple devices can be built to indicate when defined modulation percentages are achieved. This arrangement uses neon bulbs and switching diodes to fire the bulbs when the negative-peak modulation reaches 50 , 80 , and 100 respectively. Bottom ends of neon bulbs return to voltages which are uniformly 65V more negative than the voltage marking the coires-ponding modulation percentage. These voltages, and the resistance values in the divider which establishes them, depend upon the voltage...

A M Preamplifier

12 vdc powered. 27 db gain approximately noise figure 2.5 will take Regency HR-2 or Motorola to 0.1 ,uv sensitivity without appreciable noise. Metal case. ONLY 17.95 PPd CRAWFORD ELECTRONICS TELETYPE Using rape for repetitive material such as station description, over-the-air QSL, and Such You should Model 7 A tape transmitters 9. RELAYS W.E. Model 215A polar reiays, in fine shape, 5 each fair shape 2.50 each. Poor shape 1. TELETYPE DISTRIBUTORS. Model 30A startstop distributors for any...

Antenna i Packages By Henry Radio

Dtimum performance fast service .guaranteed savings For four years Henry Radio has been providing a beam antenna-tower program for amateurs who wanted an efficient, but economical package. A package pre-engineered, pre-matched and pre-packaged to his requirements and pocketbook. Thousands have benefited from this offer in the past. And now Henry Radio has researched the field and up-dated the program including the unique new tubular design Mini Mast for less expensive installations and the...