JVM-1 Marshall Schematic (50th Anniversary)

Mavrim · Post by **Mavrim** » Tue May 22, 2018 6:34 pm

Here is the official PDF schematic for the 50th anniversary JVM-1 1 watt tube amp.

JVM1_Circuit_Diagram.pdf

M Fowler · Post by **M Fowler** » Tue May 22, 2018 6:36 pm

Thank you, I will take a look at it.

RockinRocket · Post by **RockinRocket** » Tue May 22, 2018 10:27 pm

Cool thanks for posting!
Glad to see it is a lot more similar to a bigger Marshall but in a smaller format.

Do you have any more schematics of the 1 watt series?

Mark · Post by **Mark** » Wed May 23, 2018 3:07 pm

Agreed thanks so much for posting the circuit diagram up, very cool!

Phazor · Post by **Phazor** » Thu Jul 12, 2018 6:14 pm

Very nice schematic. Thanks so much for doing this.

dorrisant · Post by **dorrisant** » Thu Jul 12, 2018 8:01 pm

Thanks for posting. Must build one!

tictac · Post by **tictac** » Tue Jul 17, 2018 11:24 pm

Hi,

I have a question about D4, D5, and C25 in the bias supply / DC supply (that feeds the TL072)

Why are D4, D5, and C25 in this circuit? D3 should be able to supply all the rectification needed...

Please explain if you can....

Thanks,

DB

Stratitis · Post by **Stratitis** » Wed Mar 31, 2021 7:04 pm

Does anybody know the supply voltages at HT1 to HT5?

The Amp Garage

JVM-1 Marshall Schematic (50th Anniversary)

JVM-1 Marshall Schematic (50th Anniversary)

Re: JVM-1 Marshall Schematic (50th Anniversary)

Re: JVM-1 Marshall Schematic (50th Anniversary)

Re: JVM-1 Marshall Schematic (50th Anniversary)

Re: JVM-1 Marshall Schematic (50th Anniversary)

Re: JVM-1 Marshall Schematic (50th Anniversary)

Re: JVM-1 Marshall Schematic (50th Anniversary)

Re: JVM-1 Marshall Schematic (50th Anniversary)