| 摘要 |
A pickup cartridge for a video disc player encloses a stylus arm unit comprising a stylus arm carrying a stylus at one end and a magnetizable connector plate secured at its other end. A permanent magnet is centrally located in a recess provided in a magnetizable support member which is mounted in a carriage of the player. When the connector plate is engaged with the support member, the separation between the connector plate and the permanent magnet is greater than the separation between the permanent magnet and the walls defining the recess.
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