This oscillator was found in the January 1987 issue of Radio Electronics magazine. The frequency is adjusted by C1, and the output has good symmetry. The power supply is typically 3 to 12 V.
This circuit is from an old technical documentation from Spain. The circuit uses a FET that is...
Using transistors at the time, this circuit was found in a 1967 Ferranti documentation. The...
This circuit is from a thyristor manual from On Semiconductor. It makes use of a PUT and a SCR...