This circuit from Delta Products was published in the May 1974 Radio Electronics magazine. The circuit consists of a capacitive discharge ignition for 12 V vehicles.
For times in the range of seconds to a few minutes we found this timer with the CK722 in a Radio...
We found this circuit in an old American publication. It is possible to test common FETs using a...
This circuit causes a small pilot lamp or a 6 V torch to light up when ambient lighting is...