Using a capacitor as a sensor, this circuit was found in the 1989 Radio Electronics Experimenter magazine. The circuit must be assembled in a shielded box.
We found this protection circuit for power supplies with the 12 V power supply itself in a 1982...
We found this time base of 0.1 to 90 seconds in a circuit manual from the 90s. The single-use...
This circuit can be used with the CIR12053 receiver or with others shown in this section of the...