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Stylus arm lifting/lowering apparatus for a video disc player system
Stylus arm lifting/lowering apparatus for a video disc player system
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机译:用于视盘播放器系统的触针臂升降装置
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摘要
A video disc system includes an apparatus for lifting and lowering a stylus arm carrying a stylus. A permanent magnet embedded in a movably mounted element is repelled by an electromagnet to effect lowering of the stylus on a record rotatably disposed on a turntable of the video disc system. A selectively operated circuit is provided to control the rate of increase of voltage across the coil to obtain a smooth landing of the stylus on the record for playback.
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