I have a Cayin a-50T amp and I am replacing the stock output tubes with a set of Gold Lions.
I checked the bias of each Cayin tube before pulling them out - they were all at 32, which is within spec per the manual.
The Gold Lions were marked on the box at 31.7, but when I plugged them in and tested them they read 11. They sound fine, but I'm wondering if I need to now adjust the bias back up to 31.7 - assuming I do.
Is this normal behavior? Is this because one set are EL-34 and the other are 6CA7?