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Hoffman Amps Forum image Author Topic: Ideas for layout on JCM800 2204 combo transformers and tubes anyone?  (Read 1859 times)

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Offline Oddvar

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Hi again.

I was wondering if anyone had any ideas on the best way to layout the transformers, tubes and electrolytics on a Marshall JCM800 combo, one twelve inch speaker?  Up til now, on other builds, I have just put them where the place allowed, but maybe there is a better plan somewher?

Offline sluckey

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A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline Oddvar

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Re: Ideas for layout on JCM800 2204 combo transformers and tubes anyone?
« Reply #2 on: November 18, 2016, 07:29:15 am »
Great tip, jusrt what I need...

Offline Oddvar

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Re: Ideas for layout on JCM800 2204 combo transformers and tubes anyone?
« Reply #3 on: November 18, 2016, 12:57:39 pm »
Is there any real need for the bells on the power transformer?  I many of builds have it sunken into the chassis.  I am a bit worried the weight might tilt downwards if sticking out to long, since it's a combo and the chassis is secured only to the backplate?

And is the biasing on the back done in some special way, hardwarewise?

 


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