My apologies if this has already been covered. I did a search, but couldn't come up with anything.(adsbygoogle = window.adsbygoogle || []).push({});

My question is this. If you come across a random transformer with no markings, how can you tell it's watt rating? I have acquired several MOT's, and wish to use them in a DC arc welder. I want to parallel MOT's with similar wattage, but I have no idea what microwaves they came out of. Any help would be great!

-Marco

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# Mystery MOT watt rating

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