Early 70's Traynor YBA-3 Custom Special guitar/bass amp, all tube, 100-150 watts with massive hammond transformers. It's very heavy and one of the loudest amps I've ever played. The only other amp I've owned that could compare was a 73' Sunn model T. Like the Model T it is quite dark sounding with lots of mids but with a bit of a fender bassman character to it. I used it for guitar but these are also popular among bass players as a very loud and aggressive bass head. If you're looking at this, you probably know what this thing is about anyways though. Works as it should. !*The amp is the bottom of the two in the first two photos*!