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.
Reversing the switching action, with the output going high when the input is low, can be done by...
September 2017 - Vishay Siliconix SQ MOSFETs for automotive use are in stock for immediate...
This very low Power oscillator uses a neon lamp as active element. Frequency is given by C1 and...