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Vintage threads from the first ten years

Marshall - JTM45?

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3/7/2000 8:35 PM
Craig D	Marshall - JTM45? Hello all. Could someone point me to a schematic of a JTM45? Is this the same as the plexi 1959 schem? thanks Craig

3/7/2000 9:49 PM

Someone just posted this link recently either here or in the Usenet. Either was, what a great little convenient resource:

http://kickme.to/schematics/

And to quickly answer the question, no, a JTM 45 used 6L6 tubes, a solid state rectifier and was actually closer to a Bassman than a Plexi. Should be easy to go from one circuit to the other, barring the SS vS Tube rectifier -- that is, you can use a SS replacement for the tube, but the converse would require punching the chassis, etc.

Gil

PS: For what it's worth, I love the sound of the JTM45 reissue Marshalls, never had a chance to play an original one though.

3/8/2000 2:45 AM
Corwin	I've always seen a GZ34 in early JTM45s. hell, even the JTM45 replacement PTs come with a 5V tap I think. I could be wrong though. Corwin

3/8/2000 4:19 AM

quote:
"And to quickly answer the question, no, a JTM 45 used 6L6 tubes, a solid state rectifier and was actually closer to a Bassman than a Plexi. Should be easy to go from one circuit to the other, barring the SS vS Tube rectifier -- that is, you can use a SS replacement for the tube, but the converse would require punching the chassis, etc."

Umm, Gil, don't you mean the JTM 45 uses a tube rectifier? The 1959 uses SS.

-Dave M.

3/8/2000 4:27 AM
Gil Ayan	Right You Are, Dave! :) Re: Marshall - JTM45? Sure, the JTM 45 is the one with the tube rectifier. ) Gil

3/8/2000 8:15 AM
Lars	Re: Marshall - JTM45? I have one on my page go to: http://hem.passagen.se/lako63/ and click on th button "schema/drawings". Take a look at my english page and se my handmade guitars Lars

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