My previous post ended up comparing a scope shot of my entire system with Fritz’s capacitor. This is my capacitors scope shot and as you can see it matches Fritz’s cap fairly well.

Fritz’s cap.

All 3 of the knobs are machined. They just need the set screw hole drilled and taped.

Here are the scope pics from my spotwelder and from Fritz. Mine is on top.


Only the knobs need to be machined and installed. One prototype knob is installed on the 3rd pot for reference. Foot switch jack is the rear of the chassis.

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