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 is triggered by the touch of the fingers on a sensor. The sensor is formed by two...
1 We found this circuit in GE's 1977 semiconductor manual. The optical isolator uses an opto-SCR, and the...
This capacitive discharge ignition system with 1 transistor and 1 SCR was found in the April 1972...