You can try to run it off an oxygen concentrator. You might find a cheap used one from a medical supplier, but it's not pure oxygen (about 5% argon, iirc), which limits the temperature of the flame. I've also heard of using a 20 cuf oxygen cylinder with that torch, I guess they made their own fitting by cutting off one of the stock fittings (
http://store.weldingdepot.com/cgi/we...ml?id=D2r6MJpP and
http://store.weldingdepot.com/cgi/we...ml?id=D2r6MJpP , and use a hose clamp)
What kind of cutting can you do with it? I've been interested in one of those for brazing and cutting, but couldn't justify a full OA torch.