The main feature of this circuit found in an old American publication is that it is powered by the very signal it converts. The transistors are of the time and can be replaced by current types.
This dual time constant circuit was found in the October 1987 issue of Radio Electronics magazine. The...
This fuzz uses only one transistor that can be the BC548. Signal input and output cables must be...
Two LEDs are used in this TTL circuit. Frequency is given by C1 and C2. Power supply must be a 5 V...