This circuit takes advantage of the hysteresis of a relay to provide a latching effect. The circuit acts as a trigger and the components must be according to the used relay.
This circuit acts on the dynamic range of an audio signal, which can be useful for recording,...
This is the conventional application of the UCN4202 to control a 12 V stepper motor with current...
Described in the December 1969 Radio Electronics magazine, this circuit is intended to supply the...