I bid on a large lot of old electronics at a school auction and got this beast. I don't know too many specifics, but I tested it and it works beautifully. My understanding is that it is very low hour of usage because the av dept. didn't like wheeling the heavy thing around. I wanted to think I'd use it to build something, but it's just sitting around. I bid $40 on the lot, it'd be cool if I could get that out of it. At 200# it's not feasible to ship, if you're anywhere close to the area make an offer.