Hi guys,
I want to exchange valves in my Origin 20h, ordered some from Tube Amp Doctor. After I exchange them do I have to rebias it? Is there a manual for rebiasing? I wasn't able to find anything which would give me even slight bit of a hint about it...
Hello Stepan,
Regarding your question the ORI20 is a fixed bias so you do not need to rebias it.
Kind Regards
Marshall Support