R-390A: feeding oscillator tube heaters in DC, w/o regulator tube?

April 22nd 06, 01:06 PM posted to rec.radio.amateur.boatanchors

SpamHog

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R-390A: feeding oscillator tube heaters in DC, w/o regulator tube?

Thank you guys!

Now that I think of it, many mil radios
had heaters fed directly off batteries,
while high voltage came via a dynamotor

I'll try the 12.6 Vac jumper,
and when I'll do the DC mod
I'll post it somewhere.

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