Crystal Microphone MU 4

Astatic Corp.; Conneaut (OH)

  • Year
  • 1939
  • Category
  • Microphone or Pick-up element
  • Radiomuseum.org ID
  • 226716
    • alternative name: Omnitronics LLC

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - For headphones or amp.
  • from Radiomuseum.org
  • Model: Crystal Microphone MU 4 - Astatic Corp.; Conneaut OH
  • Notes
  • Crystal microphone MU 4.

    Output level -58 dB, recomended where microphone is to be used long distance from the amplifier.

  • Price in first year of sale
  • 23.42 USD
  • Author
  • Model page created by a member from D. See "Data change" for further contributors.

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