Found in Maxim's documentation from the 90's, this circuit uses an integrated from the time providing a 12 V output from 10 to 12 V inputs.
Applying an operational of the time, this circuit of an old documentation can be elaborated with modern...
This basic oscillator with tunnel diode generates a 100 kHz signal with 1 uW output power. The...
The traditional circuit was taken from a French magazine Radio Plans that no longer exists but can...