1961 Zenith Stereo Amp Problem

[Electronic M]

If the tubes have seen a lot of hours and aged unevenly then it is possible they no longer match well enough for the current balance to function as designed.

[dieseljeep]

Originally Posted by Electronic M

If the tubes have seen a lot of hours and aged unevenly then it is possible they no longer match well enough for the current balance to function as designed.

In every one of my amplifiers, that uses them, the 6BQ5's are wasted.
I think I have two good 6BQ5's, to my name.