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The Application of Damping to Phonograph Reproducer Arms

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1 Author(s)
Bachman, W.S. ; Columbia Records, Inc., 799 Seventh Avenue, New York, N.Y.

Large forces are developed at the stylus tip of a conventional phonograph reproducer arm because of excitation of the resonance of the arm mass with the suspension compliance. This paper presents an analysis of the problem and describes a reproducer-arm design in which mechanical resistance is introduced in the pivots. By this means, control of the arm resonance is obtained without increasing the stylus-tip impedance of the reproducer.

Published in:

Proceedings of the IRE  (Volume:40 ,  Issue: 2 )