The integrated circuit used in this circuit from a 1987 documentation is no longer common today. This circuit can generate a multitude of different sounds and this circuit is an example of application.
This circuit was found in an English magazine from 1983, but it can be assembled with BC548 for...
This configuration is found in other LM317 manufacturer's manuals. It is a regulating circuit in...
This fuzz effect for guitars was found in an American 1980s documentation. The transistors may be the BC549...