well what about making a amplifier to make it go to 12v, another question say you have 6v ac and run that throw this: **broken link removed**
would it still be 6v dc?
If it's a reluctance type of stepper motor, then I don't think there would be much voltage output, since there are no permanent magnets is such a device, and you need a magnetic field to generate a voltage.
well people have been using stepping motors to power leds at low rpms, i just cant afford a alternator and i would like to have a radio on my lawn mower put its a pull start and doesnt have the coil that you find on a electric start mower