Abstract: An operation shaft receiving-type electric component capable of reducing the number of parts required therefor and preventing generation of noise. An electric component body which includes an electric component unit varied in electric properties due to a variation in rotation angle of the operation shaft is arranged between an operation section of an operation shaft and a mechanism unit. A push-type lock and release mechanism is constituted by a guide member held stationary, both a slider member and a rotary slider each rotatably fitted on the operation shaft, a spring holder and a spring member. The guide member is provided with a plurality of primary guide grooves and secondary guide grooves, in which projections of the slide member are fitted, respectively. The rotary slider is provided with a plurality of projections, which are fitted in the main guide grooves, respectively.

Abstract: A socket type electric device unit comprising an electric device including at least one electric device mechanism having an electrical characteristic varied by an operating member and a plurality of connecting terminal members provided on the electric device and a socket to be mounted on a circuit board, the socket having a device insertion hole into which the electric device is to be inserted and a plurality of stationary terminal members provided on the socket to contact the connecting terminal members of the electric device when it is inserted into the device insertion hole.