JCM 800 Bias Problem

Marshall Amp Discussion

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wattsup
Posts: 110
Joined: Thu Nov 07, 2013 11:00 pm

Re: JCM 800 Bias Problem

Post by wattsup »

Turned out to be the bias trim pot. Replaced it, fired it back up and all's good! Thanks guys!
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frankdrebin
Posts: 131
Joined: Wed May 14, 2014 11:40 am

Re: JCM 800 Bias Problem

Post by frankdrebin »

wattsup wrote:Turned out to be the bias trim pot. Replaced it, fired it back up and all's good! Thanks guys!
normal carbon pots tend to wear out with DC current,cermet is better.
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