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Vibration and Earthquake Isolation

Method-for-improving-the-quality-of-low-frequency-output-of-a-video-disc-pickup-stylus

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Method for moisture-proofing refractory fiber for use in fire-resistant enclosures

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Method for improving the quality of low frequency output of a video disc pickup stylus

Details

Inventors: Mindel, Michael J.; Miller, Michael E.; Rustman, James C.; Palmer, Richard C.;
Assignee: RCA Corporation (New York, NY)
Primary Examiner: Smith; Gary L.
Assistant Examiner:
Attorney, Agent or Firm: Morris; Birgit E., Bloom; Allen

The quality of the low frequency signals recovered by a playback stylus may be improved by removing non-electrode metal deposits. A stream slurry lapper with a slurry of alumina in water can be used.

DETAILED DESCRIPTION We have found that removing nonelectrode metal deposits improves the low frequency response of a video disc playback stylus as well as eliminates an undesirable hissing sound.

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