Abstract: The controller interfaces up to two linear motors to either a manual control panel or a two channel computer. The control commands can emanate from either the computer (for both motors) or a combination of the computer (for one motor) and the linear motor (solenoid) with a lateral throw of one inch. In one mode, the controller will slew the armature back and forth at a uniform rate. In another mode, the controller will slew the armature at a commanded rate and then automatically modify the rate so that the armature will comply with periodic position commands from the computer. In a further mode, the controller will retract the armature to an initial position, clear the counters, and reset all logic. At all times, the position of either motors' armature can be read visually from the control panel and both motors' armature positions can be read from the respective computer channels.