In Reply to: Bias source from B+ or seperate trans, which is better? posted by DAK on August 8, 2014 at 09:29:28:
The reversed filament transformer works very well in restoring vintage amps with new power transformers that lack bias taps. Just use a 12v part 300ma is more than enough, and you will get 60v AC which is where most bias taps fall on the classic 50-70w PP amps like Dynacos, Eicos, Heathkit.
You do know to always replace a selenium bias rectifier without question?
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Follow Ups
- RE: Bias source from B+ or seperate trans, which is better? - gusser 10:51:43 08/08/14 (0)