• Country
• Germany

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

• Year
• 1930–1933

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 14900

• • alternative name: Gravor

Click on the schematic thumbnail to request the schematic as a free document.

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Magnetic loudspeaker (reed) of high quality (4 magnet poles). / Ø 32 cm = 12.6 inch

• Material
• Wooden case

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

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 455 x 436 x 248 mm / 17.9 x 17.2 x 9.8 inch

• Notes
• 4pol-LS mit "Sektor-Membrane". Impedanzumschaltung "Normal" bzw. "Schirmgitter" im Stecker.

• Net weight (2.2 lb = 1 kg)
• 5.9 kg / 12 lb 15.9 oz (12.996 lb)

• Price in first year of sale
• 78.00 RM

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

• Source of data
• Katalog Radio-Zentrale Prohaska 1930/31 (dick) / Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Katalog Radio-Zentrale Prohaska 1932/33 (S. 59)

• 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