Doctors Honored

At the recent annual meeting in Chicago of the Medical Amateur Radio Council, Ltd., six physician hams were awarded certificates of merit for service to the world via amateur radio. Those honored were ail MARCO members. The Medical net meets every day on 7260 kHz at 0100 GMT, and 14,280 MHz at 0200 GMT for phone traffic, and oil CW at 7060 kHz at 0230 and 14.060 MHz at 0230 GMT the former on Mondays, the latter on Fridays. The council is a charitable and scientific membership corporation to...

Radio Handbook

Completely updated edition of the famous communications book that is the electronics industry standard for engineers, technicians, and advanced amateurs. Explains in authoritative detail how to design and build all types of radiocommunications equipment. Includes ssb design and equipment, RTTY circuits, latest semiconductor circuits, IC's, and special circuitry. Order 24020, only-, , 13,50 by HARK Y D, HOOTONj W6TYH, ThlS One- guide emphasizes basic principl cuitry of...

Henry Radio Proudly Presents Its Kenwood Solid Receiver And Transmitter

Never before has there been an amateur receiver and transmitter like the KENWOOD R-599 solid state receiver and T-599 hybrid transmitter. The wait is over the promise of the transistor has been fulfilled. KENWOOD sets new standards of performance, reliability, flexibility, styling, and value. THE R-599 RECEIVER 1-8 to 29.7 MHz .5 microvolt sensitivity nominal * Dial readout to l 2 kilocycle Special detectors for SSB, AM, and FM Transceive operation with T-599 Built-in 100 kc and 25 ike crystal...

Cain

Most modern receivers and transceivers in use today rely upon a 100 kHz crystal oscillator to calibrate the tuning dial. While some of the calibrators are built in, others come as outboard accessories. In any event the operation of each is the same. By this time we all probably know what zero beating is. The 100 kHz oscillator in order to serve as a calibrator must be zeroed to some standard frequency such as the WWV carrier frequency on 5, 105 15, 20, etc. MHz, With a CW or AM receiver, we can...

Ik

The 51 1 resistor is approximately equal to the receiver input impedance. It will take about 10 minutes to wire this up. Have fun with the noise will rise to the challenge, at last, and use the band for CW, in order, finally, to go for the General ticket, and negotiate the exam successfully. If you agree with this premise, and 1 hardly see how you can fail to, why not devote a portion of your schedule to regular operation on the segment, for the purpose of assisting Techs in their quest for CW...

Ca

The CA3059 can be used as a simple solid-state switching device that permits ac currents to be turned on or off with a minimum of electrical transients and circuit noise. The circuit shown in Fig, 5 is connected so that after switch SI is closed, electronic logic waits until the power-line voltage reaches zero before power is applied to the load. Conversely, when the switch is opened, the load current continues until it reaches zero. This circuit can thus switch a load at zero current...

M Fm M

VHF all SOLID STATE 10 SOLID WATTS RF TRANSMITTER-RECEIVER 0,5uvSENS.(20db) slot on the radio dial became deathly and apparently permanently silent. On an automobile trip a hundred miles or so distant from Sidney, with his car radio tuned to his favorite station, Mr. Krebsbach noticed this state of affairs and (apparently considering it to be somehwat less than ideal) made haste to the nearest town and the nearest telephone to correct the situation. The thoughts of Mr, Krebsbach during the...

Magazine

So. . .how 'bout sending me ONE copy of the tiling, and end this long agonizing suspense Bill Button WA4IHH PO Box 707 Jensen Beach FL OK. The anthology is on its way. For the hundreds of people who have been writing the anthologies were held up, but now Volume 1 (at least) is printed, boundf and in the mails. Volume II is not yet printed, and will probabjy be delayed for another few months. Volume I is made up of the early large issues of FM Bulletint and it covers the period from Feb 1967 to...

CATHODE

A nonlocking scanner can be made easily by using an Archer dual flasher in conjunction with an external switching circuit. Fig, 2, Parts arrangement for mounting in GE Progress Line unit. When the scanner is in operationf ail other cathode grounding circuits must be out of the circuit. simply scans by monitoring first the F1 channel, then 2. When the operator wants to halt the scanning action, he merely turns off the unit by placing the frequency selector switch on the rig to the...

Info

Deeply when we get around to looking at antenna theory. Despite the misconceptions held by most of us as to what an impedance match consists of -,which would indicate that the only true match was an image-impedance match - examples of true image-impedance matching are difficult to find. Possibly the closest to this situation is the audio practice of matching all long lines to an arbitrary 600 2 impedance, initiated originally by telephone companies in order to provide a standard matching...

Includes

If Complimentary In Flight Meal and Beverage Service. if Round-Trip Transfers from Airport to Hotel. if Deluxe Air-Conditioned Room at the Exciting Flamingo Hotel for 3 nights double occupancy. Single occupancy 510,00 additional, if SAROC-Ham Radio Magazine Cocktail Party Thursday. if SAROC Fabulous Dinner Show Flamingo Hotel Thursday, if SAROC-SWAN Electronics Cocktail Party Friday. if SAROC Midnight Show with Two Drinks Desert Inn Hotel Friday in Main Showroom. if SAROC No-host Cocktail Party...

Rldrake Com Palmy

540 RICHARD ST., MIAMISBURG, OHIO 45342 Calvin Sondgeroth V 9ZTK 715 North Elm Street Sandwich 1L 60548 Calvin Sondgeroth V 9ZTK 715 North Elm Street Sandwich 1L 60548 This is the age of the transceiver in ham band operation. Although there are many medium- to high-power commercial SSB packages available with self-contained transmitter and receiver, there is not much to choose from for iow-power CW work This article describes a small unit which is solid-state and provides aboui 2W inpui with a...

Prepublication

A collection of 73's most popular ham projects, selected by you, the readers, and edited Franson Mr. ductor himself , got to be the best, most authoritative, most universally appealing collection of up-to-date circuits ever published. Not yet off the presses, this great MUST manual can be yours for the prepublication price of only S2. Or wait a month and have the privilege of being one of the first to buy at the low postpublication price of 3. Ray Grenier, K9KHW, Mail Order Sales Manager...

Ratio

Normalized FET transfer curves with typi-caJ operating parametersi Coils are LJ 2t 18 AWG, 14 in. dia L2-12t ct 18 AWG, Y in. dia L3-10T 18 AWG bore, 3 16 in. dia L4-2t 18 AWG interwound , 3 16 in. dia, extended the 400ft line beyond the upper horizontal axis. Now, where this line intersects the transfer curve running parameter we see a vertical and horizontal intercept at the 0,6 and 0,24 points for our ratios of IdI dss gs Pj respect ively. The use of this information can help the...

Ateur

Through thick and thicker 73 hast to the disappointment of its detractors, somehow managed to survive. This survival has frequently been quite marginal, as the gaunt but dedicated little group which publishes the magazine will testify. One of the things that has kept morale high at 73 is the ability to publish humorous little items which are obvious only to the more intelligent readers, items such as the announcements of new certificates for amateurs contacting the editors of the lt Hher ham...