Dear Geroge:
Big tubes like 845 and 300B ususally require 24 hours settle in time before all microphonics go away. This is more audible than the break in. Otherwise you get the sound unfocused during the first three hours after moving the big tube amp.
Cheers
Rich
Big tubes like 845 and 300B ususally require 24 hours settle in time before all microphonics go away. This is more audible than the break in. Otherwise you get the sound unfocused during the first three hours after moving the big tube amp.
Cheers
Rich