Marshall JTM45 Tremolo -- Vintage repro build

[xtian]

A new client from Los Angeles asked me to assemble his Super Tremolo Amplifer. According to my client, he spent $800 on knobs and $700 on KT66s alone!

I'm trying to figure out the wiring of the footswitch on the tremolo turret board. Any photos I can find show two wires from the footswitch going to the turret board--one to the Collector, and one to the empty turret below. But I can't see what that mystery turret is connected to, and the schematic does not shed any light. Any help?

This is a photo of the actual board he sent me, with my notes:

IMG_1485.jpg

Schematic:

jtm45_lead_45w.pdf

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Bluesbreaker Chassis Inside #7.jpg

[martin manning]

Schematic shows the foot switch between the collector and the intensity pot wiper. That empty turret is the pot wiper, I think.

[xtian]

Ok, so two wires run to the foot switch, these two wires make the connection between transistor and pot wiper then ftsw is closed. Right?

[martin manning]

That's the way I see it on the schematic, and the photos seem to agree.

[Reeltarded]

https://www.marstran.com/1987T.gif

damned ipad undo killed me again!

50/T is same

1573B98A-873B-4530-8608-A4D24BC91F55.jpeg

[xtian]

Project finished and shipped. Went really well, even considering it took over twice as long as I estimated (23 hours total). Glamor shots and video below.

IMG_1528.jpg

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IMG_1542.jpeg

[Colossal]

Looks and sounds killer. Very nice work! Big, fat low end.

[Reeltarded]

Great job! Lets cascade it and....

[ViperDoc]

Cool! What’s that socket isolator on V1 called?

[xtian]

Cool! What’s that socket isolator on V1 called?

No clue. Was supplied by client.

[martin manning]

Very nice! Looks and sounds great!

[Reeltarded]

It is a stunning amp. I always love the chop of the trem on good /T models.. and this one is excellent!

[angelodp]

Now that is a sight to behold, simply superb.