Hi, here are audio clips of my JTM45 with marstran OT PT and 20H choke in it.
recorder with studio projects T3 1" tube condensor, carderoid.
Speaker is a ampeg vintage, open back 12" (reverbrocket r12-r)
I used a super hard on as a buffer.
and 2 guitars, ibanez jet king, with Seymour duncan in the bridge, full open, humbucker.
and a Gibson LP bridge full open.
And with a koch loadbox, 2% output

I really like the sound between 2 and 4 on the master of the bright. very dynamic

http://www.forum.marstran.com/viewtopic.php?f=11&t=216&p=1387#p1387

I've had Email contact with Brain Wallace from marstran.
He answered my questions, and helped me out just fine.
I'm happy doing business with him. So 

I ripped out the LED. And put in a 8V bulb.
Works!

Sound clips will be posted soon.

I replaced the input resistors (carbon=noise) with metal resistors, and shielded wire.

Hi
yesterday I finished building a JTM45.
I used marstran transformers and choke.
The chassis and board are from ceriatone.

The Led light kept me thinking... I finaly replaced it with a 8V bulb.
The chassis had all the right holes. PLus a lot extra that I didn't need
But I guess you won't see it when its in the cab.

Putting a 6V zener diode in parallel with the led light could be the solution

What did the replacements exist of? Another led or a bulb?

I'm still building the amp, What whould be the correct way to install the LED? In parralel with the heater (if that's true no wonder it breaks )