This circuit was obtained in a 1978 publication. The supply can be symmetrical from other voltages. Frequency can be changed by changing the capacitors.
This circuit with transistors from a 1995 publication. The circuit is powered by a voltage taken...
Found in a 90’s American publication, this circuit has a voltage gain close to 1, as shown in the...
In the figure we show how to use a small Hartley oscillator as a continuity tester. The component...