Here's an old (probably 50s) Jensen amplifier and speaker. Fully functions and I used it as a recording guitar amp. It doesn't get terribly loud, but it's plenty loud enough for recording and getting creamy tubey tones out of. You can also boost your passive signal with a pedal and that makes it break up a bit and sound even better. The power cord is crumbling so you'll probably want to replace that. The speaker cone has no rips at all. There's some rust and gunk in the interior and a ...semi-sticky residue on the outside form the crappy modern tolex that was glued to it when I got it. It looks UGLY but also looks AWESOME so it might be just what you're looking for.