I know nothing about electronics, nothing about tube amps except I'm a guitarist (ex-pro) and have never owned or used anything but tube amps. I've never really had one fail me so I don't have much experience with technicians, nor do I know one that I can turn to. I do own several tube amps that get used only in my home.
I have used it periodically and sometimes used the Dynaco extensively. Recently, I decided to put it back in the stereo system and check the bias. I found it measured .56 on each side.
The chassis says the bias should be 1.56.
Can someone please advise me on this? I don't want to use the amp if it could be harmed and will have it looked at by a tech if need be.