This simple neon lamp oscillator produces a 140 Hz, 40 V peak-to-peak signal. The frequency is given by the capacitor that can have its value changed. Note the high supply voltage.
This circuit is from the Motorola Linear Databook of 1990. The values of the components depend on the...
This circuit was found in an old American documentation on telecommunications. It is suitable for...
This circuit, suitable for tube equipment, was found in an old documentation. It uses a high...