Awl --

So I'm amassing a collection of perm. mag. DC motors for my various
(de)generative follies, but a friend said he took apart a gas powered
generator, and observed no magnets, with both stator and rotor being
wound -- suggesting that AC induction motors should provide juice, but mine
don't.

Was my friend wrong, or can wound rotors/stators yield juice, and if so,
under what conditions?

How are back-up generators generally wound, as well as prime generators,
such as coal, hydro, etc?

Will a typical 3 ph motor throw out juice, if driven by a pony motor?

Any primers on this stuff?
--
EA