Tig welder foot control circuit question

Thread Starter

ScottCT

Joined Feb 17, 2009
3
Hello,
Ive got a TIG welder that I'm trying to find a foot pedal for, to control the welding output. Pic attached is the circuit of the pedal from the company that made the welder. I can't get one of these, so am looking for another option. Most welder foot pedals seem to just use a potentiometer, this one uses a transistor and some other components. What i wonder is if I can use the pot only type pedal instead of this one? Or is the kind of output basically different because of the transistor control?

Thanks,
Scott
CT, USA
 

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