This circuit was found in documentation from the 90s. The operational amplifier admits an equivalent. The circuit has frequency ranges up to 5kHz determined by R1.
This circuit was found in an American telecommunications documentation from the 1980s. The circuit...
When the lights turns off this circuit will produce a sound like a cricket. When the lights are...
A binary counter until 2" or a divide-by-the same value can be built by cascading n 4013...