Disc-record player with improved anti-skating device

Details Disc-record player with improved anti-skating device Disc-record player with improved anti-skating device

G - Physics

11

B

181/49

G11B 3/12 (2006.01) G11B 17/02 (2006.01)

Patent

CA 1074705

ABSTRACT OF THE DISCLOSURE An anti-skating device for a disc-record player comprises two permanent-magnet plates carried by the pickup-arm support and each extending over a sector of a circle round the same, the plates being magnetised, each across its thickness, with opposite polarities to produce each a magnetic flux at right angles to the direction of plate movement, and a coil fixed to the player structure in which two conductor elements extend across the flux of each magnet plate respectively, transversely to the direction of magnet movement, and carry the coil current in opposite directions. Current cut-off means are preferably provided to allow the winding to be de-energised when, particularly during a cusing operation, the pickup stylus is lifted from the record surface.

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