• Year
  • 1922 ?
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 282796

 Technical Specifications

  • Main principle
  • none
  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - Is a Headphone or Earphone
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Auth Phones - Auth Electric Co.; Long Island
  • Shape
  • Miscellaneous shapes - described under notes.
  • Dimensions (WHD)
  • 250 x 55 x 180 mm / 9.8 x 2.2 x 7.1 inch
  • Notes
  • Doppel-Kopftelephon, 2000 Ohm. Stoffummantelter Doppelbügel, feststellbare Hörmuscheln.

    1922 im Vertrieb von American Electro Technical Appliance Co., New York.

  • Net weight (2.2 lb = 1 kg)
  • 0.380 kg / 0 lb 13.4 oz (0.837 lb)
  • Price in first year of sale
  • 8.00 USD
  • Mentioned in
  • "Radio", Jul. 1922
  • Author
  • Model page created by Nikolaus Löwe. See "Data change" for further contributors.

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The model Auth Phones is part of the collections of the following members.

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