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.
The short-wired circuit is suggested by National Semiconductor in documentation on the LM3909. The power...
This ultra-low noise amplifier and simple power supply was found in Analog Devices documentation from the...
This touch switch is from a 1978 publication. The circuit should not be powered by a...