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Pin 7 to ground = 20Mohms
Pin 8 to ground = 100k

Yes pin 7 branches off to pin 1

Am getting hum on pin 2 of V3...and v1 and v2 are as silent as they come

Tried replacing all the preamp tubes and still the same result... very low volume on all channels

The input jack was working before... and hasn’t been touched

Tested pin 7 again... now loud hum just a little bump as soon the tester lead touched it... still getting 38v

I don’t think the problem is V4, otherwise I wouldn’t get any sound through the return at all right? I know that pin 2 is far too loud to get any measurements, I can hear it humming just by getting close to the pin without even touching it. I’ll try pin 7 again this morning

Yep getting signal through the return jack but not through the input, not even with the patch cable in the send/return

Also 470k resistor on pin 2 is only giving me 150k

Ok put everything back together and now getting 252v on pin 1 and buzz, pin 2 is still too noisy to get any measurements. And 75v on pin 8.

There is continuity on the pin1 area, on the other side of the circuit. But where I use the test lead when powering up, there is none so I’m guessing that it’s just the top side of the board that has no contact with that pin