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Jon Danniken Jon Danniken is offline
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Default Woo hoo - made an awesome test weld with the almost-complete spot welder

"Bob Engelhardt" wrote:
Jon Danniken wrote:
... and would be curious to see the schematic.


It's easy enough to describe with words: 2 microwave oven transformers;
their primaries in series, connected to 240v. The secondaries replaced
with 2 turns of the heaviest wire that will fit & connected in parallel.

That's it.


Interesting; thanks, Bob. Any of the MOTs I have "played" with saturate
above 90VAC with the secondaries shorted; how much input current are you
seeing on this thing?

Jon