Dynamic Microphone (Ball & Biscuit) 4021

Standard Telephones and Cables Ltd. (STC); London, Foots Cray

  • Year
  • 1935 ?
  • Category
  • Microphone or Pick-up element
  • Radiomuseum.org ID
  • 347652
    • Brand: Micromesh tubes

 Technical Specifications

  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Dynamic Microphone 4021 - Standard Telephones and Cables
  • Shape
  • Miscellaneous shapes - described under notes.
  • Notes
  • STC 4021 - moving coil or dynamic microphone.

    Known as the "Ball & Biscuit" model by collectors,  

  • Author
  • Model page created by Keith Ellison. See "Data change" for further contributors.

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The model Dynamic Microphone (Ball & Biscuit) is part of the collections of the following members.

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