Abstract: An electronic component base for an electronic component is disclosed to have a top wall adapted to accommodate an electronic component core, diagonally extended wire grooves in the top wall for guiding out lead wires of the loaded electronic component core, a bottom wall, a plurality of electrically conducting zones in the bottom wall, four peripheral walls, four chamfered angles alternatively connected between the peripheral walls, and four conducting side grooves respectively extended from the wire grooves to the electrically conducting zones for receiving the lead wires of the electronic component core from the wire grooves.

Abstract: A filter for removing electric noises from an electric wire is disclosed to include an electrically insulative hollow cylindrical casing formed of two symmetric half shells joined by flexible hinge strips and detachably locked by a fastening device, each half shell having two notched end walls and a male locating device, and two magnetic core members mounted inside the casing and abutted against each other to hold an electric wire in therebetween, each magnetic core member having a longitudinally extended recessed portion located on the inside wall to accommodate the electric wire and a female locating device for receiving the male locating devices of the half shells of the casing.