• Year
  • 1930
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 319799

 Technical Specifications

  • Wave bands
  • - without
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Mixing Panel 3-D - Jenkins, J.E., & S.E. Adair;
  • Shape
  • Rack
  • Dimensions (WHD)
  • 19 x 12.25 x 6.75 inch / 483 x 311 x 171 mm
  • Notes
  • Microphone Mixing Panel 3-D

    3 channel using GM-2 mixing controls.  Assumed to use series mixing.  Set of parts $91.50 (undated)

    Battery keys and potentiometers for carbon microphones, channel On-Off keys.

    Input Impedance:  200 ohms
    Output Impedance:  200 ohms (approximate)
    Frequency Response:  50Hz - 6kHz < -1dB

  • Price in first year of sale
  • 275.00 USD
  • Mentioned in
  • - - Manufacturers Literature (Bulletin 7B, December 1930)
  • Author
  • Model page created by Timothy Hughes. See "Data change" for further contributors.

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