Active with the output at the high level, this oscillator was found in November 1984 Radio Electronics magazine. The supply can be between 3 and 12 V and the output signal is rectangular.
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...