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Im rebuilding the wire speed control on my small welder and am wondering if anyone knows where i can find a three terminal rotary rheostat 115 volt 250vac 40 amp . The company I bought the welder from is in Italy and no longer has any dealers in my area and when i contacted the company they said they wont sell parts to end users . The web site they sent is all in Italian . Got a friend to translate for me and even hes not sure how to get what I need . I’ve gone over the cuircit board and am pretty certain the problem is in the rheostat. @oldturkey03 Mike im kinda directing this in your direction but will take help from anyone Im just not finding anything Update The welder is a Deca 150e Its a portable welder I use at job sites without 220 outlets as this runs off 110
I have my thumb on the rheostat it measures 1 1/4"by 3/4wide size doesnt really mater as I can adapt to most any size . Just to let you know what I’ve tried . I replaced the entire board with a model train controller that worked great on low settings but burned out on the high setting . I’ve also tried a dimmer switch with similar results
The component you refer to is a 1 watt potentiometer. Look at the gold part (shell) and find the numbers on it. That’s the value of potentiometer you need. Something like A100K. Same thing as a volume control on a radio.
