• Year
  • 1928–1931
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 14890
    • alternative name: Gravor

 Technical Specifications

  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • Magnetic loudspeaker (reed) of high quality (4 magnet poles). / Ø 27 cm = 10.6 inch
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Violon - Grawor, Rundf.techn.Erz. Grass
  • Shape
  • Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).
  • Dimensions (WHD)
  • 300 x 330 x 140 mm / 11.8 x 13 x 5.5 inch
  • Notes
  • Flächenlautsprecher in Holzgehäuse
  • Net weight (2.2 lb = 1 kg)
  • 1.1 kg / 2 lb 6.8 oz (2.423 lb)
  • Price in first year of sale
  • 42.00 RM
  • External source of data
  • E. Erb 3-907007-36-0

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