• Year
  • 1931/1932 ?
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 75053
    • alternative name: Gravor

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 125; 150; 220 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 31 cm = 12.2 inch
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Cinema Wechselstrom-Chassis - Grawor, Rundf.techn.Erz. Grass
  • Dimensions (WHD)
  • 0 x 400 x 0 mm / 0 x 15.7 x 0 inch
  • Notes
  • Mit Trockengleichrichter,

    mit fest montiertem Spezial-Anpassungstrafo, Tauchspulenring. Belastbarkeit: 20 W. 

    Membran Durchmesser: 31 cm

  • Net weight (2.2 lb = 1 kg)
  • 18.5 kg / 40 lb 12 oz (40.749 lb)
  • Price in first year of sale
  • 330.00 Mk
  • Source of data
  • -- Original prospect or advert / Radiokatalog Band 2, Ernst Erb
  • Mentioned in
  • -- Original prospect or advert
  • Author
  • Model page created by Wolfgang Eckardt. See "Data change" for further contributors.

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