Do tube pre-amps need bias adjustments?

I'm new to tubes. I'm thinking only tube power amps need bias adjustments, not pre-amps, but I'm not sure.

reedthis11-01-2007 2:52am

dopogue Details Discussions Posts This discussion Message User 1,773 posts 11-01-2007 at 10:38am Copy Comment URL Report Comment Edit Delete I've had 4 tube preamps since the mid '80s and none has provided for bias adjustment. Dave