The circuit shown is from Motorola's 1990 Linear Databook. Shaded components are optional. The characteristics of the coils are given next to the diagram.
We found this circuit in the April 1975 Radio Electronics magazine. The circuit has a latch and...
We found this sophisticated home alarm in a 1994 documentation. The circuit supports sensors of...
This circuit was found in the 1991 Electronics Experimenter's Handbook. It activates a relay when...