From the referenced old thread, I posted on 3/18/2019 , the following. And I recall that Jeff Register had done extensive research on the subject.
“It was through Jeff’s expertise that I and all of us realized that benefit of using these modern Vishay high quality capacitors in our motors. It was at least 3 or 4 years ago that he investigated the properties of the various modern cap and identifies the correct properties suitable for magneto service. I don’t begin to understand all the electronic specs ,but I remember that there was a lot mote to it than just the capacitance and voltage rating. Thanks Jeff”
Joe B
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