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In Reply to: "I just built a SE kt90 amp." posted by FenderLover on October 18, 2016 at 21:41:03:
No, i am doing it with fixed bias. Same thing you just bias the amp up with a meter which measures the current on the cathode. One can dial in the amount of bias you want. Also you can have different power tubes and simply and easily adjust the current to suit the different tube's needs.
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Follow Ups
- RE: "I just built a SE kt90 amp." - DAK 23:33:21 10/18/16 (1)
- "This arrangement yields between -30 to -45 volts of bias voltage." - FenderLover 07:25:42 10/19/16 (0)