This circuit is from 1980 documentation. We can exchange the BC177 for a BC557 and the TIP41 must have a heat radiator. The circuit is for motors up to 2 A. The transformer has a 12 V secondary with 2 A. The circuit is a PWM control.
This circuit is from 1980 documentation. We can exchange the BC177 for a BC557 and the TIP41 must have a heat radiator. The circuit is for motors up to 2 A. The transformer has a 12 V secondary with 2 A. The circuit is a PWM control.