K166 Bidirectional DC Motor Speed Controller

This kit allows a DC motor to be speed-controlled in both forward and reverse. Direction and speed are controlled by a single potentiometer. The circuit is much more beefy than the PC board, you can operate a 5A motor without additional wiring, the switching MOSFET is rate to 49A. The circuit operates at the same voltage as the motor, but max voltage is +32Vdc (power supply not included).