Single phase ex-avionics motor start up?!
I have a beautiful 1970's ex-avionic cooling fan for a klystron, made by the RCA corporation. RPM is an astonishing 9,700.
The make is RCA 1710618-2
It's a good candidate for taking the heat off on of various planned projects.
I'm happy with building a suitable 0.18A, 115V 400Hz power supply for it,
but the start-up and wiring are unfamiliar.
There are three wires terminating from it, which I thought could be phase, neutral and ground, but this doesn't seem to be the case. One is striped red , one blue and one is white. It occurred to me that this could also be an arrangement for adjusting the RPM, depending on the temperature.
It needs a 0.15uF start capacitor. There is a polarity-marked small sliced-cylinder shape attached to the back, which appears to be a thermocouple.
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Al
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