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Tube Amplifiers HomeSchematicsMarshall Schematics -» Jcm 800 2203 :

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Jcm 800 2203 Adobe Acrobat Schematic
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M. Garner – California
May 06, 2013 - 11:56

I bought the same one. There is no way this is going to work based on Triodes layout. The ground bus is not grounded. (for one) The first pre tube is not wired correctly. Some values are incorrect also. I got mine working but it's really scratchy. But at least I got some signal through it. Still working on it.

Reply to M. Garner
tom – maryland
February 18, 2018 - 13:37

i bought the same kit and having the same issue did you resolve the problem and if you did how

Marty – Fresno, Ca.
April 09, 2013 - 10:25

I purchased a JCM 800 2203 from Triode Electronics. I wonder if anybody has had trouble with the amp. I can't find any mistakes with my wiring, no shorts etc. Just can't seem to get it to work. There are some minor differences between there lay out and the actual schematic. Any comments would be welcome. M

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