I bought this at the Dallas Guitar Show. I could tell through the crappy "organ" speaker that it had some umph and bite. And for what the guy was willing to take for it, it was worth trying out. I don't believe the trannies are original. The PT is a Crosley and the OT, although old, is almost certainly not original. Tubes are not original either. It has a Dumont badge on the front, but I can't find anything that shows they made a guitar amp. Tubes: 12ax7-12ax7-6sn7-6l6gh-6l6gh-Caps-6sf5-5u4g The pot code is 304541. So I think that means 1955 and Stackpole. There's a sticker that says "Electronically Restored by Tracy Sands" with the Fender logo and a phone number 714-992-AMPS. From what I can find, he is/was a pretty well respected tech. Here are some pics: Any help would be greatly appreciated. By the way, the amp sounds great with the Black Mountain.