I was given an old rca tube PA system out of an army movie theatre. It consits of some red mic pres , some blue line level pres , sepeperate bass and treble tone amps , the tube used is a 12ay7 , it has a power supply that uses a seleuim rectifier, all seperate modules. In the bottom is two power amps using 4 - 6v6's with a 5y7 for a rectifier. This not set up as stereo but rather as a A B routing system. I have not built up the courage to apply power to it. I can just imageine the condition of 50 year old caps. If anyone has heard of these I'm hoping for a schematic or advice . I'm hoping to use these for flavors but don't know if it's worth restoring or is it just a collector's item. It is all in one steel heavy rack portable it aint.If nothing else it makes a cool conversational device. P.S. I have a couple of hammond B3 and leslies I'm working on too , and if your looking for 50's parts for Pacards or cadilacks my Father in law has nos going back to the 40's , these are from old gas stations around Alaska and are still in orignal boxes.

I don't now about using it in a studio environment, but with some tweaking it sounds like that could be one HECK of a guitar amp....

If you have the time, I'd restore it, adjusting the input gain structure (which was probably hi impedance anyway), and end up with essentially a Victoria Double Deluxe or Jim Kelly amp...4 6V6s pumping away would be about 40 watts or so...