This automatic switch for multiple loads was shown in the May 1983 issue of Radio Electronics magazine. The circuit is designed to switch multiple electronic devices at the same time.
This circuit was obtained from an old American documentation having a limited adjustment range....
The movement of the LEDs in this circuit mimics the back-and-forth movement of a pendulum, making it...
This circuit is from a 1967 documentation. It makes use of varicap and diode tunnel in addition to...