Moving coil type stereophonic pickup cartridge

Details Moving coil type stereophonic pickup cartridge Moving coil type stereophonic pickup cartridge

H - Electricity

04

R

179/14, 179/31

H04R 9/16 (2006.01)

Patent

CA 1139233

ABSTRACT OF THE DISCLOSURE In a moving coil type stereophonicpickup cartridge, an armature is provided having first, second, and third leg por- tions which extend in three substantially mutually orthogonal directions. A source of magnetic flux is disposed with only one pole thereof adjacent to the first, second and third leg por- tions of the armature. The magnetic circuits thus constructed, having an open return path, generate signals by changes in the magnetic flux through coils wound on the second and third leg portions due to the movement of the armature relative to the magnetic source. Variations in the design of the three leg arma- ture and the magnetic source are disclosed. Practical embodiments of the invention include disclosure of cartridge replacement fea- tures providing convenient electrical connection between moving coils and remainder of the sound reproduction system.

344937

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