• Country
• Germany

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

• Year
• 1939

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 180130

• • 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

• Material
• Bakelite or Plastics (type unknown)

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

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 80 x 15 x 80 mm / 3.1 x 0.6 x 3.1 inch

• Notes
• Kristall-Lautsprecher (piezoelektrisches System). Flache Dose ca. 8 cm Durchmesser gedacht als Kopfkissenlautsprecher.

• Net weight (2.2 lb = 1 kg)
• 0.2 kg / 0 lb 7 oz (0.441 lb)

• Mentioned in
• Handbuch der Funktechnik, Fortschritte B.6

• Author
• Model page created by Wolfgang Eckardt. See "Data change" for further contributors.

• 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