This circuit was found in old documentation, but the setting applies to any operational. Resistors and capacitors determine the frequency. For the indicated values the frequency is 10 kHz.
This circuit, from a 303 Circuits from the 90s, uses a telephone pickup coil as a sensor to...
The signals from this circuit obtained from the 1965 Radio Shack documentation are picked up from...
We found this oscillator that operates on the third overtone in a 1975 amateur radio...