• Country
• Sweden

• Manufacturer / Brand
• Uddenberg, Ralf A. (RU); Göteborg

• Year
• 1927 ?

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 263053

• Wave bands
• - without

• Loudspeaker
• Magnetic loudspeaker (reed) generic.

• Material
• Various materials

• from Radiomuseum.org
• Model: Triumf - Uddenberg, Ralf A. RU;

• Shape
• Tablemodel, low profile (big size).

• Literature/Schematics (3)
• Le Guide du Collectionneur TSF Biraud/Foster, Vol. II (page 447)

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• Other Models

• Here you find 7 models, 2 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Uddenberg, Ralf A. (RU); Göteborg