Build a pulse motor
How to build a pulse motor See how to build a pulse motor with just one transistor and one diode.
A pulse motor will not have the torque that a normal AC motor has. However, this does not mean that a pulse motor is worthless in everyday usages. Torque is going to equal the amperage input to the coil per times pulsed. There's no way to get around that unless you use magnets to help it.
