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-------- Original message --------
Date: 1/7/26 20:13 (GMT-08:00)
Subject: Re: [Milsurplus] Hey Bob, W9RAN
That " tube company" you mention below, Hugh, was RCA. I have posted a copy of the QST ad on my website.
https://www.w7ekb.com/glowbugs/tx/813osc/813osc.htm
RCA published a more detailed article on that single-813 power oscillator in an issue of their Ham Tips in 1938, a copy of which is also posted on my web site.
Lastly, one of my early Elmers, Walt Polete W7JIZ built and operated one. He demonstrated it to me and another Elmer, Woody Davey W7CJB, sometime around 1956 in Missoula, Montana.
Lastly, Jack Meadows W7QQQ recently built one and I have worked him on the air.
Ken W7EKB
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-------- Original message --------
Date: 1/7/26 18:23 (GMT-08:00)
Subject: Re: [Milsurplus] Hey Bob, W9RAN
use old - stock FT-243s, so be it. I will be carefull.
This topic has me wondering about a tube company ad on the back of a CQ magazine. It showed a single 813 tube "power
oscillator". No - not a MOPA; just one tube. How did they do that, i wondered. Without immediately cracking the crystal.
I recall many decades ago in high school, i was taking some kind of electronics class. There was some breadboard circuit
prototyping kit and i had from somewhere, a crystal for the AM broadcast band. I built up a single tube, something like
6DQ6 tube, power oscillator transmitter. How long did that last ? About long enough to send one line of text CW; then
the crystal, no more work.
-Hue Miller
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