"Steve Sousa"

I live in a 230V area but need to use a 120V fan to repair an amplifier.
I can only get 230V fan motors here, so i was wondering if i can simply
remove turns from a 230v shaded pole motor to make it into a 120v one?


** That idea is never gonna work - have you ever seen the insides of such a
fan ??

One possibility is to connect a capacitor in * series * with the fan of
such a value that it causes the inductance of the motor to resonate at the
supply frequency. This will increase the voltage across the fan above the
incoming supply.

A 230 volt, 120mm fan I tried resonates with about 3uF in series.

With 120 volts AC input, the voltage across the fan became 165 volts and the
speed was then close to that with 230 volts.
Worth a try.

Use a cap rated for 240 volt AC operation.


..... Phil