Many vacuum tube 50KW AM out there?

September 1st 03, 09:21 PM

t.hoehler

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Many vacuum tube 50KW AM out there?

I wonder if there are any 50KW AM vacuum tube transmitters in use anymore? I
read the excellent article about the Harris 50KW solid state xmtr that WLW
uses, pretty neat. In the sixties, what would be the plate voltage and
current for a PA running 50KW in AM? I'm sure they would use three phase
input power, but how much filter capacitance would be needed to insure a
quiet carrier? Always wanted to know.
Regards,
Tom

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