Electret microphone

Details Electret microphone Electret microphone

1975-03-05

1976-03-16

Claffy, Kathleen H.

179111R, 179 1A, H04R 1904

Patent

active

039447561

ABSTRACT:
An electret microphone having a head readily assembled within a housing in which an electrically conducting backplate and an air permeable filter member abut each other and form an electrical connection to an electrically conducting pin. The head of the microphone is mounted on a handle containing an electrical connector which engages the pin of the head forming an electrical connection. The handle also contains an amplifier with an F.E.T. transistor electrically connected to the connector, the amplifier having a radio frequency filter, surge filter, and being adapted to function with direct current potentials carried by the microphone cable of greatly varying magnitudes.

REFERENCES:
patent: 3007012 (1961-10-01), Olson
patent: R28420 (1975-05-01), Murphy

Affiliated with

Also associated with

Rating

Electret microphone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electret microphone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electret microphone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-294051