Found in a Popular Electronics from the 90s, this circuit uses common components with several operational options, including the use of an optocoupler that allows its application in a shield.
This fuzz distortion circuit was found in old RCA documentation. Equivalent transistors may be...
This circuit for the two-meter band of radio amateurs was found in 1980s documentation....
This circuit was obtained from an American publication of the 80's. The integrated circuit is of the...