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.
We find this circuit in a 1980s documentation. The circuit can be applied to modern operators with...
This high power dimmer uses a unijunction transistor to trigger the triac. The triac is choosen...
This simple voltage-controlled oscillator generates signals from 300 Hz to 1,500 Hz with voltages from...