Electrodynamic transducer with longitudinally moving magnet

Details Electrodynamic transducer with longitudinally moving magnet Electrodynamic transducer with longitudinally moving magnet

1978-03-14

1980-12-02

Wolff, John H.

17910041K, 179114M, H04R 1108, H04R 1104

Patent

active

042373476

ABSTRACT:
According to the invention, the electrodynamic transducer comprises a coil with a pair of sections wound in opposite directions. Placed inside the coil is a magnet capable of moving in a longitudinal direction. The unlike poles of the magnet are located in different sections of the coil. The magnet is mechanically coupled to an actuator. The stereophonic and monophonic pickup heads and the electrodynamic microphone are built around said electrodynamic transducer.

REFERENCES:
patent: 1667021 (1928-04-01), Williamson
patent: 2110153 (1938-03-01), Holst
patent: 2114471 (1938-04-01), Keller
patent: 2361788 (1944-10-01), Neff
patent: 2639156 (1953-05-01), Ward
patent: 3196216 (1965-07-01), Davis
patent: 3665123 (1972-05-01), Ikeda
patent: 3798391 (1974-03-01), Parker
patent: 4010334 (1977-03-01), Demeter

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