This fuzz effect for guitars was found in an American 1980s documentation. The transistors may be the BC549 and should be battery powered for noise sensitivity. Diodes are commonly used.
This circuit was obtained from an English magazine from 1985. It consists of a pulser that drives...
This watt meter was found in an old telecommunications documentation. The circuit is interspersed...
This Ditherizing circuit is used in digital audio for effect production. The circuit is from a...