This very low current circuit with the ICM7860 was found in the April 1995 Electronics Now magazine. The output voltage depends on the input voltage.
This circuit uses a sensitive reed relay to control external loads. The time delay is given by the...
This crowbar circuit for alternating current causes a quick fuse to blow when the load current...
This circuit has a 200 kHz bandwidth and a low input current. The circuit is from the 80's, but...