Quote Originally Posted by kiteman View Post
Fixed biased or cathode biased?

Anyway, ever consider some used (or new) old stock tubes?
It's fixed bias with a trim pot for adjustments. From what I understand they are shipped biased slightly cold from the factory. Here's a Youtube video on biasing it. If I were to do it myself, I'd rather get a bias probe.



I don't have the cash for NOS and I don't know that I really have the desire to research.