• Country
• Germany

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

• Year
• 1938

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 72583

• • alternative name: Gravor

• Material
• Various materials

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

• Shape
• Miscellaneous shapes - described under notes.

• Notes
• Kristallmikrofon als Tisch-oder Standmikrofon lieferbar, Frquenzbereich 30-12000Hz Ausgangsspannung 50mV

• Price in first year of sale
• 153.00 RM

• External source of data
• Liste Arlt 1938

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Author
• Model page created by Michael Seiffert. 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