Car Battery Power Supply (CB25334E)

This car battery power supply was found in the June 1990 issue of Radio Electronics magazine. Integrated circuits must be equipped with heat sinks.

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CMOS 4001 Alarm with Latch (CB24374E)
We found this circuit in the April 1975 Radio Electronics magazine. The circuit has a latch and...
Alarm System (CB16793E)
We found this sophisticated home alarm in a 1994 documentation. The circuit supports sensors of...
Light Activated Alarm (CB26164E)
This circuit was found in the 1991 Electronics Experimenter's Handbook. It activates a relay when...