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Abstract

An electric capacitor of variable capacitance, including a dielectric body comprised of densely sintered ceramic material, including a hollow space extending longitudinally through the tubular ceramic body for containing dielectric liquid. First and second dielectric liquids of different dielectric constants and densities are contained in the hollow space, and an adjusting cylinder connected to the hollow space adjusts the height levels of the two dielectric liquids in the hollow space for adjusting the capacitance of the capacitor. The hollow space is either longitudinal channels through the tubular body or is a radial space between two concentric tubular bodies which together define the dielectric body. The metal layers of the capacitor plates are respectively on the inside and the outside of the dielectric body.

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First Claim