Quote Originally Posted by jdurand View Post
Long time since I had to deal with pulse generators like that. Something to watch out for is newer parts switch a LOT faster than the originals, can break the circuit.
Take it easy mate, the generator-band to be applied to this old welder is not so high, only 0Hz to at maximum not over 1kHz, they dont do any harm to the primary inverter board.
Chy