Abstract: A high-voltage variable resistor capable of significantly small-sizing a circuit board as compared with the prior art. A terminal fitment is provided so as to act as an electrical connector for establishing electrical connection between a slide element fixed on an operation shaft member and slid on a variable resistance pattern formed on a circuit board and an output portion thereof. The terminal fitment includes a contact holding portion which is provided at a distal end thereof with a contact portion. A contact point between the contact portion of the terminal fitment and a contact portion of the slide element is defined on a side of the operation shaft member while being spaced from a front surface of the circuit board. Such construction prevents the contact point from being defined at a central portion of the variable resistance pattern, resulting in a radius of curvature of the variable resistance pattern being reduced as compared with that in the prior art.

Abstract: A high-voltage variable resistor capable of significantly small-sizing a circuit board as compared with the prior art. A terminal fitment is provided so as to act as an electrical connector for establishing electrical connection between a slide element fixed on an operation shaft member and slid on a variable resistance pattern formed on a circuit board and an output portion thereof. The terminal fitment includes a contact holding portion which is provided at a distal end thereof with a contact portion. A contact point between the contact portion of the terminal fitment and a contact portion of the slide element is defined on a side of the operation shaft member while being spaced from a front surface of the circuit board. Such construction prevents the contact point from being defined at a central portion of the variable resistance pattern, resulting in a radius of curvature of the variable resistance pattern being reduced as compared with that in the prior art.

Abstract: An annular resistor member having two non-contact ends is overlaid and adhered on the surface of a base, and a rotational shaft located at the central portion of the resistor member is pivotally axially supported via a bearing. A bent electrode arm is fitted on the rotational shaft, and is connected to an output terminal via the rotational shaft or a connection means. A movable electrode, which opposes to the resistor member via a gap, is integrally formed on the end portion of the electrode arm, and a capacitor is formed between the movable electrode and the resistor member. In the above structure, when an AC power supply is flowed across the two ends of the resistor member, the capacitor is formed between the movable electrode and the resistor member, and an attenuated voltage is generated on the movable electrode.