PWM DC Motor Speed Control (This is a circuit for controlling the speed of small DC motors, it makes a great model railroad speed control.) schematic diagram | RC Modeling circuits

PWM DC Motor Speed Control (This is a circuit for controlling the speed of small DC motors, it makes a great model railroad speed control.)

For view click PWM DC Motor Speed Control (This is a circuit for controlling the speed of small DC motors, it makes a great model railroad speed control.) schematic diagram