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Quite by Accident...I FOUND this chassis. it is L-1652B on sams 652-12 I have a old, dirty but quite useable sams for it now. This set does not use a doubler--only a half-wave diode for a 140 volt supply. I expect less than 2 w/channel, maybe 5 or so from the sum channel.
It looks like the resistor that is smoking is on the 120 volt line. I checked with a meter for low resistance to ground--but it does not seem not be the case. There is a 50MF cap on that line--but it does not check shorted. This one is on the board--near the 25F5 tubes.
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