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If all the resistors are OK, it could be a cap. Start checking around the output tubes, and work out from there. A leaking cap can cause similar problems - as the set heats up the cap starts leaking and the tube draws more current and then the cap leaks more and then the tube draws even more current... ad infinium until the tube goes into cutoff.
Both possibilites (resistor or capacitor) are pretty likely. I've just seen more resistors cause this problem than caps in later radios, a lot of the smaller table sets (AM/FM) used ceramic disc caps.
-Ian
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07-16-2005, 07:41 PM
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