• Year
  • 1927
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 312317

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • Magnetic loudspeaker (reed) generic.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Airplane speaker - Duval Tube Co. / Duval Radio
  • Shape
  • Miscellaneous shapes - described under notes.
  • Notes
  • Cast metal speaker with reed driver and paper cone, featuring an airplane design in the grill.  Ad reads, "Type C Complete, $10.85 with unit.  Reg. $15.  Famous for its reproduction.  It employs two diaphragms."

  • Price in first year of sale
  • 10.85 USD
  • Author
  • Model page created by Rodney Boleyn. See "Data change" for further contributors.

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