| 摘要 |
PURPOSE: To provide an electroacoustic transducer and its manufacturing method by which the positioning accuracy of a member is improved markedly and a stable characteristic can be obtained. CONSTITUTION: The electroacoustic transducer 1 consists of a base 24 made of a magnetic material, a magnetic core 22 made of a magnetic material and stood upright to the base 24, a diaphragm 20 made of a magnetic material and supported with an air gap from the tip of the magnetic core, a magnet 25 that configures a magnetic circuit with the base 24, the magnetic core 22 and the diaphragm 20 for supplying a static magnetic field to the magnetic circuit, a coil 23 for supplying vibration magnetic field to the magnetic circuit, and a housing 30 or the like, that is formed integrally with the magnet 25. A notch hole 38 reaching the magnet 25 from the bottom side is formed to the housing 30.
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