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View Full Version : bias circuit for 5F8A


Mouthurst
04-29-2007, 05:52 PM
Hi again folks-Thought Id run this by you open for suggestions
-Im building A 5F8A twin configured for 6V6's but my power xfrmr has no tap for the bias.
Im considering tapping off the HV ala ampeg but interested in other concepts.

I was wondering if anyone had found or knew of any other ways of doing it besides the usual.

M-tia

Satamax
04-29-2007, 08:40 PM
Have you checked dis?

http://music-electronics-forum.com/showthread.php?t=2545

Mouthurst
04-29-2007, 11:02 PM
Have you checked dis?

http://music-electronics-forum.com/showthread.php?t=2545

Figured there had to be some archives on this, I searched but didnt find this.

Thanks maxman-

william

Arthur B.
04-30-2007, 08:34 AM
They left out one other one, which is to derive a completely separate power supply for the bias. This is usually done for large amps trying to squeeze as much power out as possible.