Didn't realize I could make a welder with it. Don't know much about it except it was produced for maybe a handful of years. Wonder if it could power my 24 volt Century portable MIG that runs off two 12 volt batteries in a series(1000 cca truck batteries). Welds great but the duty cycle sucks, gotta recharge the batteries after 20 seconds, and the batteries are now toast. The rectifier is rather large, the fins (plates?) are 6"x6".