Variable Reluctance Pick-Up

General Electric Co. (GE); Bridgeport CT, Syracuse NY

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  • Year
  • 1949 ?
  • Category
  • Microphone or Pick-up element
  • Radiomuseum.org ID
  • 353708
    • Brand: Musaphonic

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Variable Reluctance Pick-Up - General Electric Co. GE;
  • Shape
  • Chassis only or for «building in»
  • Notes

  • This new pick-up has a sapphire or diamond stylus that is incredibly small and stiff, less than 1/16th in length and having an included angle of 50° with a tip radius of 0.003 in. This form represents the maximum possible stiffness.
    The dynamic mass of the stylus is 8 by 10-3 gm, and it is mounted vertically.
    Only between 3/4 oz. and 1 1/4 oz. pressure is required to track satisfactorily.
    The pick-up is less than 1 3/4 in. long by 3/4 in. wide.

  • Mentioned in
  • -- Original-techn. papers. (Electronic Engineering, January 1949, page 21.)
  • Author
  • Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.

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