• Country
• Germany

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

• Year
• 1930/1931

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 14899

• • alternative name: Gravor

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Magnetic loudspeaker (reed) of high quality (4 magnet poles).

• Material
• Wooden case

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

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Dimensions (WHD)
• 320 x 320 x 0 mm / 12.6 x 12.6 x 0 inch

• Notes
• früher Sektrola, Sektor-Membran, Vierpol-System.

• Price in first year of sale
• 69.00 RM

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Katalog Radio-Zentrale Prohaska 1930/31 (dick) (p.50)

• 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