I'm sure this has been asked before, but I searched past posts and couldn't find anything .... I have an old 300 A DC 3 phase welder. It was built to operate on 208 through 440 volts, 3 phase. I was thinking about the whole transformer, rectifier setup which must be the guts of this welder and it seems it should operate, at reduced output on 240 volts single phase with each of the two hot 120 volt inputs connected to 2 of the 3 inputs on the welder, ignoring the third input altogether. What do you folks think? thanks !