I have a 1/2 hp radial arm saw from the 1930's that uses a capactor and a magnetically driven mechanical switching arrangement to power the secondary windings of the electric motor. The capactor has burned out and I really don't want to deal with the mechanical switch as I am pretty sure it is going to be very noisy and heat up given how it looks like it works. Besides the thermal protection circuit breaker no longer works and the manufacturer cannot recommend a replacement that fits. So, what I want to do is replace the mechanical part with a solid state arrangement which I am pretty sure can be done using some diodes, resistors and a replacement capactor. What I am not sure of however what this type of circuit is called so I can research it and build it. My first thought was that it was an AC recitifier but that doesn't seem to be it nor does it seem to be a phase splitter or inverter. Can anyone point me in the right direction?
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