Electret microphone

Details Electret microphone Electret microphone

1984-06-13

1986-02-18

Rubinson, Gene Z.

29592E, H04K 1901

Patent

active

045714649

ABSTRACT:
An electret microphone comprising a rectangular metal electrode, a metallized electret film and an amplifier element encapsulated in a lower and an upper casing half. A contact element comprises a flat web portion and two prongs which are provided with tubes of electrically conductive silicon rubber. In the assembled microphone, the electret film is retained by the tubes which simultaneously provide electrical contact between the film and the amplifier element.

REFERENCES:
patent: 3895194 (1975-07-01), Fraim

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