Abstract: The invention relates to a bellows in a vacuum capacitor, whose bellows structure (1) comprises a carrier material (2) and at least one electrically conductive layer (5, 6), whereby the latter has a uniform thickness over the entire bellows structure. The deviations of the layer thickness from the mean are less than ±50% and preferably less than ±10%. This results in an increased life span with mechanical loading. In order to increase the heat emission through radiation, the bellows structure (1) has an additional dark layer (7). The used method provides for the application of the electrically conductive layers prior to the shaping process, which results in homogeneous layer thicknesses.

Abstract: A capacitor is described, in particular a vacuum capacitor, comprising two electrodes (1, 1′), at least one insulator (5), and means for fastening (4, 4′). A process is proposed according to which the two electrodes (1, 1′) are each produced as one piece of an electrode material through a cold-flow extrusion process. The electrodes so produced are distinguished by a high surface quality. The result of this, in the capacitors produced from such electrodes, is high quality-factors, low temperature coefficients, a high current-carrying capacity, and an excellent dielectric strength, as well as a compact structure with a simultaneous reduction in the number of components required. Capacitors of this type, in particular vacuum capacitors, find application in HF technology for fixed and variable capacitance values.

Abstract: The variable capacitor (1) is characterized by the fact that the safety end switches (6, 7) as well as a displacement detector (10) are integrated in the housing (1) or in an additional housing (5) provided at one of the front ends of the capacitor housing (1). Due to this construction, the entire device becomes more compact and more precise in operation.