The circuit shown with the LM3914 was found in the March 1992 issue of Radio Electronics magazine. The circuit has a full-scale adjustment.
This silencer or squelch preamp circuit was found in a documentation for radio amateurs. It...
This circuit was found in a 1994 publication. It draws 1 of 41 LEDs when we press and then release...
This circuit makes use of a diac to stop the activation of a sensitive reed relay 1 mA. The trip...