The Circuitron Gate Driver Circuit may be used in conjunction with any of Circuitron's Detection Circuits and Alternating Flashers. It is designed to directly drive up to two Tortoise(TM) Slow Motion Switch Machines when used as the actuator(s) for Grade Crossing Gates. The speed of motion is fully adjustable. Control of the flasher circuit is handled by the GD-1 and an adjustable timer will hold the flashers ON while the gate rises. The Gate Driver Circuit is mounted on a 2 x 3" printed circuit board and requires 10-18 volts DC.