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 found in 1980s American documentation. The transducer is a piezoelectric capsule and the...
The voltage regulator integrated circuits of the 78XX series can be found with voltages from 5 v...
This circuit with transistors from a 1995 publication. The circuit is powered by a voltage taken...