This circuit was obtained from an Electronics Design of 1964. The circuit makes use of tunnel diodes that are uncommon today. The circuit works with very weak signals.
This circuit was obtained from a 1971 Electronics Hobbyist. The circuit can still be mounted using...
We found this circuit very simple in an old documentation. The relay is high voltage sensitive, but...
Molex discrete wiring and cabling solutions with applications in consumer electronics, commercial...