Abstract: There is provided a variable resistor having a small number of parts and having an excellent heat releasing property. A rotor is rotatably contained in a concave portion of a case. The rotor has a resistive element provided on the bottom thereof and electrodes connected to both ends of the resistive element. Arms of sliders are provided on the bottom of the concave portion of the case in a sliding relationship with the respective electrodes and resistive element. A metal cover is disposed on the upper surface of the case in contact with the rotor.

Abstract: An improved variable resistor for use in electrical and electronic equipment which includes a substrate having fixed side terminals integrally molded in it so that forward end portions of the fixed side terminals are exposed to the surface of the substrate, a resistant layer formed on the surface of the substrate so as to cover the exposed forward end portions of the fixed side terminals at opposite end portions of the resistant layer, a variable side terminal provided on the substrate, and a slider movably disposed on the substrate for sliding movement over the resistant layer so as to adjust resistance of the variable resistor and in which the fixed side terminals are applied with solder coating at their predetermined portions except for the exposed forward end portions.

Abstract: A variable resistor for use in electrical and electronic equipment which includes a base plate, a lower stator terminal housed in a circular recess formed in one surface of the base plate, a rotor member having an electrically conductive film layer at its one surface and an electrically resistant film layer at its other surface and rotatably mounted on the lower stator terminal with the conductive film layer contacting the lower stator terminal, and an upper stator terminal fixed to the base plate so as to slidingly contact the resistant film layer under pressure.