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Radio Call Signs
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Larry
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First recorded activity by BoatBanter: Jul 2006
Posts: 5,275
Radio Call Signs
Bruce in alaska wrote in news:fast-
:
unLicensed Operation Enforcement.
What was the biggest CB linear? How many TV sweep tubes did it have in
parallel?.....(c;
I saw a home brew linear at a hamfest that had enough sweep tubes in
parallel that its output impedance was 50 ohms! It was HUGE! Not sure
how they kept it from eating Channels 2 and 5, though....
CB went all to hell after they quit makin' 6J?6's....(c;
I built an amp for HF with a pair of 4-1000A's in proper sockets and
chimneys, pole transformer hooked up backwards controlled with 30A
230VAC Variac, home wound filament transformer.
Mine was different because it was common cathode and the RF input was a
100W dummy load with adjustable drive on the finals. Screen supply had
two power tube regulators, a copy of a Hewlett-Packard lab powersupply.
It was beautiful in its World War 2 Navy TBK transmitter cabinet...first
class rotary inductors and 25KV vacuum variable plate cap.
We never operated over 1000 watts DC input to the final power
amplifier...on 20 meter RTTY for hours sending teletype pictures of
Vargas Girls out of the latest Playboy. I still got a few reperf tapes
for old times sake! With 2KW of graphite plates and a 5KVA plate
supply, 100% duty cycle at a kilowatt was loafing....
WFIG-AM had a 3-tower cardioid array running about 200W on 1240? at
night pointed right over my antenna array. Ernest Jenkins was the great
old engineer that kept the 866's glowing blood red (in the day). EJ
would call me up at night and say, "You on 75 meter SSB tonight?" "Yes,
I'm on 3903." "Well, how about give me 5 minutes to read the antenna
current meters. You got more current in these towers than I do!", he'd
joke as I did make them "wiggle" a tiny bit, being near 3/4 wavelength
and near my full wave loop on 75M...(c; I used to go down during
thunderstorms and stand by the old Gates with my fingers on the Fils and
Plates buttons. EJ wasn't really too mobile at 79 years old and he'd
stay at the night console across the room from the Gates while I kept
recycling the power every time the lights on our crappy rural electric
system blinked out.....
73 DE W4CSC aka KN4IM aka WB4THE aka WN2IWH and 20W1956.
I go way back....(c;
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