• Country
• Germany

• Manufacturer / Brand
• Grawor, Rundf.techn.Erz. Grass & Worff (REG); Berlin

• Year
• 1927/1928

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 14884

• • alternative name: Gravor

• Power type and voltage
• No Power needed

• Loudspeaker
• Horn

• Material
• Wooden case

• from Radiomuseum.org
• Model: Resonanz Grawo - Grawor, Rundf.techn.Erz. Grass

• Notes
• Holz-LS mit Trichter

• Net weight (2.2 lb = 1 kg)
• 8.5 kg / 18 lb 11.6 oz (18.722 lb)

• External source of data
• E. Erb 3-907007-36-0

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Radio Nostalgie

• Other Models

• Here you find 141 models, 136 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Grawor, Rundf.techn.Erz. Grass & Worff (REG); Berlin