This LED flasher was described in the Radio Electronics Experimenter magazine special issue of 1989. It was designed to be assembled with SMD components.
The timing steps of this circuit are indicated by a 7-segment display. The circuit was found in...
We found this circuit in a 90s Radio Electronics. The secondary current of the 110 or 220 V...
We found this circuit in a book on espionage from the 90s. The circuit has a counterphase...