The speed indication of this circuit is made on an analog instrument. The circuit is used to count pulses (rpm) and was found in April 1976 Radio Electronics magazine.
This experimental circuit for moving a stepper motor was found in a 2002 documentation. However, given...
This traditional stable configuration with the TTL 7400 integrated circuit was obtained in a...
A motor of up to 500 mA can be controlled by the logic levels applied to the inputs of this...