This circuit provides a 5 V negative output with a maximum current of 1 A. The circuit is from the 1993 Linear Technology Applications and uses common components at the time.
This circuit was obtained from an American 1980s documentation. The frequency depends on the...
This traditional metronome circuit is powered by voltages from 9 to 12 V and output drives a...
Found in a 1966 documentation, this “coin finder” uses components from the era operating at 2.1...