Found in the February 1997 Electronics Now magazine, this circuit controls motors according to the transistor used. For the transistor indicated, the maximum current is 200 mA.
The circuit also works as a synchronized rectifier and balanced modulator. We found it in the...
This circuit is from an American documentation of 1975. The FET may be the BF245 and the relay is of...
This low voltage lamp flasher can be powered from 12 V supplies. Frequency is adjusted by P1 and...