This circuit operates at a voltage of 1.3 V from a single mercury cell. We found in an old documentation and for the components used the frequency is 500 kHz.
This configurations shows how to use a zener diode to have equal input and output voltages. The...
Found in American documentation from the 1980s, this circuit is a basic signal rejection filter...
This circuit was found in an Electronic Design from the 90s. The oscillator circuit consists of a...