The purpose of this 1967 Philips circuit is to produce a rectangular signal from a sharp pulse. The circuit makes use of an unusual component today as a base.
This anti-bounce circuit was found in a 1967 US documentation. Modern transistors such as the...
This metronome circuit was found in an American 1980s documentation. The circuit uses the 4001...
This continuity tester for low resistances was found in an English magazine from 1978. The circuit...