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Have you measured the B+ voltage at the cathode(s) of the rectifiers, on either side of the speaker field coil, at the plates of the 6V6s, to find out where you are loosing B+ ?
When you say "stone cold" what exactly do you mean? are the tubes lit up or not?
jr
Last edited by jr_tech; 04-16-2016 at 04:05 PM.
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