• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

JAS 2.1 Array - schematics and/or mods anyone work on one?

JAS 2.1 Array - schematics and mods anyone work on one?

Hello all,

I have coming onto the workbench a non-functioning JAS 2.1 Array amp, 805 SE driven by 300B, a real beast at 100lbs. I have one set of schematics for it but they are minimal at best. Wondering if anybody has a copy you could email to me please and thanks, hopefully better than the ones I have.

Also looking for anyone who has worked on one, or made mods to one. They look well made and depending on what is wrong with it, I may mod it somewhat, maybe different output tubes as the 805s are missing, I have lots of 211's and some Western Electric similar triodes.

Look forward to any guidance you may be able to offer.

Last edited: