• Country
• United States of America (USA)

• Manufacturer / Brand
• Silver - Marshall; Chicago, IL

• Year
• 1931

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 174341

• Wave bands
• - without

• Loudspeaker
• -Loudspeaker incorporated, but system not known.

• from Radiomuseum.org
• Model: SM870 - Silver - Marshall; Chicago, IL

• Notes
• S-M 870;
  Speaker mentioned in Radio News advert suitable for Bearcat SM737, in Jan. 1931.

• Mentioned in
• -- Original prospect or advert (Advert in (US) Radio News Jan. 1931)

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 225 models, 116 with images and 122 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Silver - Marshall; Chicago, IL