• Year
  • 1926 ?
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 139469

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • Magnetic loudspeaker (reed) generic.
  • Material
  • Special material, described in the notes.
  • from Radiomuseum.org
  • Model: Book Speaker - Utah Radio Products Co.; Salt
  • Shape
  • Miscellaneous shapes - described under notes.
  • Dimensions (WHD)
  • 17.5 x 13.5 x 0 inch / 445 x 343 x 0 mm
  • Notes
  • Speaker in book form, made of semi-hard rubber. Can be held upright by an easel furnished with the speaker, or hung on a wall as a picture. The reproducing unit vibrates the center of the pages to produce an audible sound.

    Gold and brown leatherette finish.

  • Net weight (2.2 lb = 1 kg)
  • 8 lb 0 oz (8 lb) / 3.632 kg
  • Price in first year of sale
  • 34.20 $
  • Mentioned in
  • Wyeth Hardware & Mfg Co, Catalog 1927

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