Abstract: A torque motor driver apparatus utilizing an operational amplifier driver which operates near zero milliamps output current, to drive and control a torque motor of non-zero null current, with minimum steady-state power consumption and full functional performance. An enable/disable fail safe switch is included and is positioned in series with the power source and torque motor to disable the torque motor as necessary. A pair of sensing units sense the torque motor voltage and DC resistance to provide a fault indication when either a low resistance or shorted condition or high resistance or open condition exists.