Using a component of the era, this 1968 Mallory circuit uses an output transformer whose characteristics were not provided in the original documentation.
Found in Radio Electronics from the 90s, this circuit generates signals from 100 Hz to 1.5 kHz....
Operating in the range of 1.5 to 15 kHz, this sinusoidal oscillator is based on a 741 operational. The...
This circuit was obtained in a 1973s documentation. The transistors may be BC558 for the PNP and...