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The grid voltage on the diagram says it should be 0, but between the four output tubes, I have a range of between .5 and .9 volts.
Also, all 4 of the B+ voltage sources are about 32 volts higher than what the manual calls for. For instance, the B+ source going to the audio output transformers should be 375 volts, but is running right about 408 volts. The dropping resistors to bring down the main B+ for the other 3 sources are (surprisingly) accurate, so there's no problem there. I haven't replaced the 3 section filter cap, but since there is no audible "hum", I think they are OK.
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