electrosound preamp

[PRINCETOWN]

heres the rave from an ebay seller,I bought a Scully 8 track machine that had 8 Scullys and 8 of these on it.It had been set up to use either.I sold one and was planning on keeping the rest to set up as mike pre's,but havent touched them and its been years since I got them.I am selling 3 and going to keep the rest.This is for one,I will have two more up.I have no documentation on these,and know nothing about them.
anyone know anything about these?
ebay Item number: 130153113260 elecctrosound

[jon.l.hunter]

looks very simular to the modules on my my ampex 440

The 440 had an optional mic input part. If you find the module today you can easily mod
to build a mic pre. I have investigated it as I have 8 of them but from what I've been told its not worth it
as they don't sound that good. But then of course thats is someone elses opinion on a different brand of module
& one mans trash is another mans treasure.

what I do know is that you would have to build a power supply

If you do it let us know how you go.

Jon