• Country
• Germany

• Manufacturer / Brand
• Grassmann, Peter, RFW, Radio-Funk-Werkstätten; vor 1945, Berlin & Neuhaldensleben

• Year
• 1936–1938

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 165211

• Wave bands
• - without

• Power type and voltage
• Direct Current supply (DC)

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 27 cm = 10.6 inch

• Power out
• 15 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Dynamos 68 - Grassmann, Peter, RFW, Radio-

• Shape
• Chassis only or for «building in»

• Notes
• Gleichstromausführung, für jede normale Spannung lieferbar. Erreger 18W. Mehrpreis für Holzgehäuse 30,-

• Price in first year of sale
• 68.00 RM

• Mentioned in
• Katalog Ch.Mank, Leipzig (undatiert, nach 1934)

• Author
• Model page created by Georg Richter. See "Data change" for further contributors.

• Other Models

• Here you find 110 models, 75 with images and 30 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Grassmann, Peter, RFW, Radio-Funk-Werkstätten; vor 1945, Berlin & Neuhaldensleben