This circuit has its frequency controlled by a 1MHz crystal. The circuit must be powered by a voltage of 5V. The capacitors must be ceramic. The generated signal is rectangular.
This circuit found in a European publication from the 1980s, is based on PLL 566. The frequencies...
This symmetrical power supply uses two old filament transformers. The circuit was obtained in a...
I found this circuit in an Electronics Handbook from 1989. The publication no longer exists, but...