Low-leakage pot magnet system for moving-coil loudspeakers

Details Low-leakage pot magnet system for moving-coil loudspeakers Low-leakage pot magnet system for moving-coil loudspeakers

1982-09-28

1984-08-14

Pellinen, A. D.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Retarded or delayed type

335231, 179119R, 179120, H01F 700

Patent

active

044659067

ABSTRACT:
A low-leakage pot magnet system for moving-coil loudspeakers having two permanent magnets of opposite polarity is accomplished by spacing the lower permanent magnet away from the bottom of the screen pot by an appropriate support which includes a disk or plate of nonmagnetic material arranged between the lower permanent magnet body and the bottom of the screen pot.

REFERENCES:
patent: 3201529 (1965-08-01), Surh
patent: 3407371 (1968-10-01), Gosma
patent: 3665352 (1972-05-01), Dietrich et al.
G. Hecht, K. Kolbe, "Low Stray-Field Speaker for TV Receivers", Funkschau, vol. 50, No. 6, (Mar. 1978), pp. 257-258.

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