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.
In fact, this 1992 circuit consists of a demonstration circuit of a 5-channel remote control that...
Mouser has a huge list of sensors for the most diverse applications such as automation, IoT,...
Many still like to hear medium waves but live in places with difficult reception with many...