Newbie's First Questions RCA TS 721 Restoration

[Kevin Kuehn]

Originally Posted by Chris K

Tried 2 different NOS 12AU7s, the original RCA tube that was in the set, and 2 Mullard, strong testing ECC82s...still a -36V...-37 volts on pin 2 of the CRT. It's not the tube I think we can say

And yet removing it made CRT pin 2 return positive. Makes me wonder if it's suppose to go negative with no video signal from the detector. I need to go look at the conditions for the voltage readings.