Compact moving-coil pickup of low weight and high quality

Details Compact moving-coil pickup of low weight and high quality Compact moving-coil pickup of low weight and high quality

1978-12-28

1980-12-02

Tupper, Robert S.

17910041K, H04R 912

Patent

active

042373492

ABSTRACT:
In a moving-coil pickup having a flat, wound armature which is fixed to a stylus arm and is movably mounted in a magnet field produced by one or more permanent magnets, said magnet or magnets is/are so arranged as to define a relatively short tube within which the armature is mounted.

REFERENCES:
patent: 2034872 (1936-03-01), Keller
patent: 2133815 (1938-10-01), Harrison
patent: 3133161 (1964-05-01), Neumann
patent: 3956598 (1976-05-01), Kawakami et al.
patent: 3963880 (1976-06-01), Ikeda
patent: 4011417 (1977-03-01), Kageyama et al.
patent: 4090039 (1978-05-01), Mori et al.
patent: 4145582 (1979-03-01), Nakatsuka
patent: 4161631 (1979-07-01), Matsuda
Philips' Technische Rundschau, Feb. 1940, pp. 29-36.
Philips' Technische Rundschau, Jan. 1941, pp. 8-11.

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