Quote:
Originally Posted by old_coot88
(Those main filter caps C1A, C1B, C1C, C3A and C2B would not be suspect as they are not in the current loop with R127B.)
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No, but the voltage across them could be revealing . And I think that chassis should come out of the cabinet to get any meaningful measurements, as we're beyond pulling tubes. As you mentioned way back, something besides a tube must be drawing major current on the B+.