Patent ID: 8275157

Claim:
A ribbon microphone unit, comprising: a magnet for forming a magnetic gap; a ribbon diaphragm disposed inside the magnetic gap and is vibrated by a sound wave; an electrode lead portion for outputting an electric signal generated by the ribbon diaphragm vibrating inside the magnetic gap; a frame provided with the magnet and the electrode lead portion; a tightening member which sandwiches both longitudinal ends of the ribbon diaphragm so as to be secured; and a screw for crimping the tightening member to the electrode lead portion of the frame, wherein the tightening member crimps the both longitudinal ends of the ribbon diaphragm by fastening a screw, the both longitudinal ends abutting against the electrode lead portion, and wherein the ribbon diaphragm comprises a portion sandwiched by the tightening member, and the portion is formed in an irregular shape in the thickness direction prior to the tightening member sandwiching the portion.