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 low-frequency relay oscillator was obtained from an article in Electronics Now magazine in...
Found in an English documentation from the 90's, this oscillator has the frequency given by the LC...
This circuit, for its simplicity and the fact of using a super-regenerative detector only works...