This LED flasher was described in the Radio Electronics Experimenter magazine special issue of 1989. It was designed to be assembled with SMD components.
In the figure we show how to supply a DC motor from 6 to 12 V with alternating current. The diodes...
This circuit was obtained in a 90’s documentation. The operational amplifiers are from that time....
When the remote connection is disconnected or interrupted, the lamp will come on. The transistors can be...