I have big power transformer that's used in an old-style arc welder; it is just this huge thing, which can be connected to 110VAC or 220VAC and has four output tabs: one is ground, the others (I got told) are "low", "mid" and "high" output. But it is a home made transformer, so it doesn't have any specs.
Question: is it possible to find out the Amps it would yield, without running it?
Remember it is an arc welder, I guess the amps are like 40 Amps up, right? It works nice, I'm just curious what are the real approximate amps output, so perhaps I can pick the right rods.