JCM 800 4210

Info for maintaining and tweaking your amp to perfection.

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Dax_The_Ax
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Joined: Sat Dec 08, 2018 8:46 am
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JCM 800 4210

Post by Dax_The_Ax » Fri Mar 18, 2022 7:35 pm

Hello to all!! I just bought a 4210 for a great price. I plan on upgrading and modding it and putting it in a Large Marshall head box. I have a couple questions.
I plan on doing these mods but can’t find any detailed instructions on them. Any info would be greatly appreciated. It’s a 50 watt 1984 4210 combo.

1. Adding a presence control, removing and using the DI Pot hole for the new Potentiometer, 22k I guess

2. Remove bright caps, but I’m not sure how many there are.

3.Doing the diode mod to remove some of the clipping diodes or diode bridge,

Any other tone mods welcome!!

I get it in 4 days, I’ll post pics

Dax_The_Ax
New Member
Posts: 7
Joined: Sat Dec 08, 2018 8:46 am
Just the numbers in order: 13492

Re: JCM 800 4210

Post by Dax_The_Ax » Fri Mar 18, 2022 7:38 pm

Thanks!!

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