This normally open, two-terminal, high-sensitivity circuit was found in General Electric's technical documentation from the 1980s. The circuit is half-wave.
This circuit, from the 90's, is intended for operation with vinyl record players of the time, as...
Using a zener diode it is possible to change the linearity of the scale of an analog instrument by...
Found in American documentation from the 1980s, this circuit prolongs the ringing of a doorbell or chime...