Our online catalog is being updated! Please contact us for current pricing. Synchronous Motor Controllers Synchronous Motor Controller The YMC synchronous motor controller powers fixed rpm (usually 72 rpm) instrument motors. These motors instantly stop and have 3.6° resolution. The hand controller is actuated by an up/down rocker switch. Users find this controller an excellent alternative to remote control without the equipment involved with stepping motor systems. YMC-1 Synchronous Motor Controllers Controls one synchronous instrument motor Single speed (usually 72 rpm) Rocker up/down drive switch Instantaneous start/stop Hand-held 120 V 60 Hz AC Includes 10' grounded AC cord, 15' motor cord (longer cords available) Price     $345. YMC-1/LV Low Voltage Controller Same specifications as YMC-1 Low voltage controls for use with limit switches Price     $545.