Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => EZ Board postings => Topic started by: Geezer on June 17, 2005, 09:50:50 pm
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Hoffman Amplifiers
> Tube Amp Building - Tweaks - Repairs
> Pignose bias
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stan buczko
Junior tube assistant
Posts: 70
(3/5/04 8:47 am)
Pignose bias
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Hello everyone, A friend of mine has a Pignose G40V all tube amp and asked me if the bias can be changed to be adjusted with a pot. Schematic at www.schematicheaven.com .
Can i change R2 a 58k to a 33k and put a 50k bias pot in series? Thanks much for your input. Stan
OldHouseScott
Posts: 11
(3/5/04 10:40 am)
Re: Pignose bias
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Check this link for several mods to a Pignose G40V including adjustable bias:
www.blueguitar.org/new/ar...0v_mod.pdf
stan buczko
Junior tube assistant
Posts: 71
(3/5/04 12:40 pm)
Re: Pignose bias
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Thank you very much. Stan
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