Modular tuner and method for manufacturing the same

A modular tuner, comprising:

• a metallic casing, having an opening;
• a tuner adaptor, embedded in the opening, the tuner adaptor having a metallic outer surface;
• and
• a plurality of metallic elastic pieces, wherein the plurality of metallic elastic pieces and the metallic casing are integrally formed by stamping followed by bending, and the plurality of metallic elastic pieces of the metallic casing extends outwardly from the edge of the opening of the metallic casing, and respectively interfere with the metallic outer surface of the tuner adaptor,
• wherein the plurality of metallic elastic pieces are a plurality of triangular tooth-like metallic elastic pieces or a plurality of trapezoidal tooth-like metallic elastic pieces,
• wherein the metallic casing comprises:
• a metallic casing body, having at least three side walls, wherein one of the three side walls has the opening disposed thereon, and the plurality of triangular tooth-like metallic elastic pieces or the plurality of trapezoidal tooth-like metallic elastic pieces are arranged along a portion of the edge of the opening;
• and a metallic casing lid, coupled to the other two side walls of the metallic casing body,
• wherein the tuner adaptor has an annular groove, the opening has a notch formed on the upper edges of the side walls, and the metallic casing lid has a fastening, wherein the fastening is introduced into the notch and inserted into the annular groove thereby fixing the tuner adaptor.