This circuit allows control of loads of up to 1 A with voltages from 3 to 15 V. The transistor must be equipped with a heat sink and the power supply must not be of the type without a transformer.
This circuit was found in a 1973’s Japanese magazine. It uses transistors of the time and is...
This cassette player motor speed control was found in the January 1991 issue of Radio Electronics...
This circuit was obtained in a 1982 English magazine. The purpose of this circuit is to make an...