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.
Many designs that use transistors and integrated circuits are powered by a 6V voltage, normally...
This preamplifier with RIAA equalization was obtained in a documentation from the 1980s. The...
This circuit is from an old documentation from 1995, but it can be easily assembled today by the...