This circuit of an Electronics Hobbyists Handbook uses a different configuration for a triac. The circuit uses an integrated frequency divider and a coupler with a fotodiac.
Found in American documentation from the 1980s, this circuit can generate signals from 50 kHz to...
This 1-transistor oscillator circuit was found in the March 1965 Radio Electronics magazine. The...
This interesting configuration was found in a 1965s Electronic Design. It makes use of components of...