HELP!!! I'm new and am in over my head. I have a new ETA 24vdc 20 amp power supply. I'd like to build a PWM based controller to control a 135 watt 24vdc motor. If someone could provide a schematic I'm sure I could build it with Radio Shacks help. I'd like to have 110 ac going into the 24vdc power supply and the 24 vdc going into a separate module with a pot to vary the speed on the 24 vdc motor. The motor is PWM compatible. MANY THANKS!!!