This windshield wiper interval switch was found in the April 1990 issue of Radio Electronics magazine. The circuit uses integrated circuits that are still readily available.
This low power circuit can be powered with voltages from 1.8 V. We find it in a 80s Hands On...
This static switch or triac contactor was obtained from Philips 1969 documentation. The SCR is...
This circuit can be used to set the compass for walks or exercises, being small enough to be...