A brazing structure for a vacuum container is provided. The vacuum container includes: a fixed conductor on which a fixed electrode is supported; a movable conductor on which a movable electrode is supported; a flange pipe which is bonded to the movable conductor coaxially with the fixed electrode and the movable electrode; and a ceramic pipe which is provided coaxially therewith. One end of the ceramic pipe is bonded to the fixed conductor by brazing, with a linking flange pipe therebetween, and the other end thereof is bonded to the flange pipe by brazing, with a linking flange pipe therebetween. The linking flange pipe includes a bonding portion that is bonded to the ceramic pipe by active metal brazing using an AgCuTi-based, AgCuInTi-based, or AgCuSnTi-based metal.

A vacuum capacitor is provided with a vacuum container accommodating a fixed electrode and movable electrode to ensure capacitance, and a vacuum expansion container communicating with the vacuum container in series. The vacuum container is provided with a movable support part supporting the movable electrode, a movable conductor supporting the movable support part to enable reciprocation in the axial direction of the vacuum container, a fixed conductor supporting the fixed electrode, and a main bellows interposed between the movable support part and the movable conductor. The vacuum expansion container is provided with a movable part arranged coaxially with the movable support part, and an adjustment bellows interposed between the movable part and the inner end surface of the vacuum expansion container. The movable support part and movable part are connected by an insulating connection rod arranged coaxially with the fixed electrode and movable electrode.

A vacuum capacitor is provided with a vacuum container accommodating a fixed electrode and movable electrode to ensure capacitance, and a vacuum expansion container communicating with the vacuum container in series. The vacuum container is provided with a movable support part supporting the movable electrode, a movable conductor supporting the movable support part to enable reciprocation in the axial direction of the vacuum container, a fixed conductor supporting the fixed electrode, and a main bellows interposed between the movable support part and the movable conductor. The vacuum expansion container is provided with a movable part arranged coaxially with the movable support part, and an adjustment bellows interposed between the movable part and the inner end surface of the vacuum expansion container. The movable support part and movable part are connected by an insulating connection rod arranged coaxially with the fixed electrode and movable electrode.

A capacitive rocker potentiometer includes a circuit board, a seat body, a slider, a rocker arm, a rocker rod, an insulation sheet, and a variable capacitor. The seat body is disposed on the circuit board and defines a sliding groove, the slider is disposed in the sliding groove of the seat body, and the slider is connected with the insulation sheet. The rocker arm is rotatably disposed on the seat body and is provided with a pulling head configured to slide the slider back and forth, and the rocker rod is connected to the rocker arm. The variable capacitor includes first and second electrode plates corresponding to each other, and the first and second electrode plates are electrically connected to the circuit board. The insulation sheet is inserted between the first and second electrode plates and configured to move back and forth between the first and second electrode plates.

A capacitive rocker potentiometer includes a circuit board, a seat body, a slider, a rocker arm, a rocker rod, an insulation sheet, and a variable capacitor. The seat body is disposed on the circuit board and defines a sliding groove, the slider is disposed in the sliding groove of the seat body, and the slider is connected with the insulation sheet. The rocker arm is rotatably disposed on the seat body and is provided with a pulling head configured to slide the slider back and forth, and the rocker rod is connected to the rocker arm. The variable capacitor includes first and second electrode plates corresponding to each other, and the first and second electrode plates are electrically connected to the circuit board. The insulation sheet is inserted between the first and second electrode plates and configured to move back and forth between the first and second electrode plates.

A noise filter includes a first terminal, a second terminal, and a housing accommodating the first terminal and the second terminal. The first terminal includes a mounting portion and an extending portion extending from the mounting portion, and the second terminal includes a mounting portion and an extending portion extending from the mounting portion. The housing houses the first terminal and the second terminal such that the extending portion of the first terminal and the extending portion of the second terminal are arranged side by side with an interval between the extending portion of the first terminal and the extending portion of the second terminal. The housing includes an adjustment mechanism that adjusts the interval between the extending portion of the first terminal and the extending portion of the second terminal.

A noise filter includes a first terminal, a second terminal, and a housing accommodating the first terminal and the second terminal. The first terminal includes a mounting portion and an extending portion extending from the mounting portion, and the second terminal includes a mounting portion and an extending portion extending from the mounting portion. The housing houses the first terminal and the second terminal such that the extending portion of the first terminal and the extending portion of the second terminal are arranged side by side with an interval between the extending portion of the first terminal and the extending portion of the second terminal. The housing includes an adjustment mechanism that adjusts the interval between the extending portion of the first terminal and the extending portion of the second terminal.

A capacitor provides a plurality of selectable capacitance values, by selective connection of six capacitor sections of a capacitive element each having a capacitance value. The capacitor sections are provided in a plurality of wound cylindrical capacitive elements. Two vertically stacked wound cylindrical capacitance elements may each provide three capacitor sections. There may be six separately wound cylindrical capacitive elements each providing a capacitor section. The capacitor sections have a common element terminal.

A capacitor provides a plurality of selectable capacitance values, by selective connection of six capacitor sections of a capacitive element each having a capacitance value. The capacitor sections are provided in a plurality of wound cylindrical capacitive elements. Two vertically stacked wound cylindrical capacitance elements may each provide three capacitor sections. There may be six separately wound cylindrical capacitive elements each providing a capacitor section. The capacitor sections have a common element terminal.