This circuit with a voltage comparator is delayed by the capacitor. The circuit drives a power transistor that must be equipped with a good heat sink.
The integrated 4017, a C-MOS counter, is one of the most popular in the design of sequences,...
This simple very low power circuit can be used in a battery powered infrared tone trigger. We...
This timer controls two relays, each with a different timing, activated separately. The circuit is from...