• Country
• Germany

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

• Year
• 1931 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 109593

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Magnetic loudspeaker (reed) of high quality (free mooving - only possible past 1931).

• Material
• Wooden case

• from Radiomuseum.org
• Model: Helios PGVII - Grassmann, Peter, RFW, Radio-

• Shape
• Tablemodel, with any shape - general.

• Notes
• Doppelmagnetsystem mit freischwingendem Anker. Preis Chassis PG7 48,- RM

• Price in first year of sale
• 75.00 RM

• Mentioned in
• -- Original prospect or advert

• Other Models

• Here you find 111 models, 76 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