Chris6870 Well-known member Jan 26, 2010 #1 There is one bias control for 4 power tubes. I guess you need a perfectly matched quad of tubes huh? Lots of amps have 2 controls. 1 control for each pair. That gives you a little wiggle room. Am I right?
There is one bias control for 4 power tubes. I guess you need a perfectly matched quad of tubes huh? Lots of amps have 2 controls. 1 control for each pair. That gives you a little wiggle room. Am I right?
