This circuit is from the 1983 Intersil Databook. The display is plasma and must be excited by a high voltage circuit. The components used in this configuration are not common today.
Touching the sensor with your fingers, this circuit produces a machine gun sound. The circuit must...
This circuit appears elsewhere on this site. This is from an American 80's circuit manual....
This circuit was found in Maxim documentation from the 1990s. The RC circuit determines the...