We found this circuit for vocal effects in the September 1990 issue of Radio Electronics magazine. The circuit works with signals from two inputs of a stereo system.
The circuit shown with the LM3914 was found in the March 1992 issue of Radio Electronics magazine. The...
This dimmer for incandescent lamps was obtained from an American 1990s documentation. The circuit...
This circuit was suggested by Linear Technology in a 1980s documentation. The setting applies to...