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Nice, now modify the Bias Circuit from the "Balance Bias" as used in Silverface CBS amps, to the standard Bias adjustment as used in most tube amps and used in the Blackface amps, so you can be able to set the Bias properly.

I don't do it for a while now, but there's plenty info on the net about it, also go to the el34world forum as it's the best forum on the web for tube amps, a lot of help over there specific to Tube Amps, specially classics like Fender/Marshall/Vox.


I will search also search on my Gerald Webber books the notes for that mod.


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