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'Loud hum in October Stage w/reverb'
Author:Steavis (registered user: 39 posts )
Date: Tue, May 22nd, 2012 @ 16:08 ( . )
yes I was thinking the same thing.

Dan: just thinking out loud: is the amp fixed biased or cathode biased? A common mistake is not to ground the point where the 2 220K resistors meet in the PI section when it's cathode biased. Check a 5E3 deluxe schematic (cathode biased) vs a AB763 schematic..

But since you were talking about adjusting the bias you probably have an adjustable fixed bias..
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Replies:
--* Loud hum in October Stage w/reverb
5/22/2012 @ 19:27--Dan McCormack
5/23/2012 @ 01:18----Asdain
5/23/2012 @ 05:28------Steavis
5/23/2012 @ 11:26--------Dan McCormack
5/23/2012 @ 12:49----------Steavis
------------* Eureka!
5/23/2012 @ 15:14------------Dan McCormack
5/23/2012 @ 15:32--------------Steavis
------------* Loud hum in October Stage w/reverb
5/23/2012 @ 15:16------------Dan McCormack
5/23/2012 @ 15:33--------------Steavis

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