Squirrel cage wiring??

I see a lot of squirrel cage fans with internal motors at the scrap yard. They are from discarded air conditioners, but could be used for room ventilation, etc. Does anyone know the wiring scheme or have a wiring diagram. There is usually a capacitor involved.

Re-design7 years ago
On the ones I've got, there is a common wire and the 2 or 3 wires for different speeds.  The cap if for starting and should already be connected to a pair of wires.