• Country
• France

• Manufacturer / Brand
• Ducretet (-Thomson; avant: Fernand Ducretet et Ernest Roger etc.); Paris

• Year
• 1910 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 298074

• • alternative name: SED

• Wave bands
• - without

• Loudspeaker
• -Loudspeaker incorporated, but system not known. / Ø 9 cm = 3.5 inch

• Material
• Various materials

• from Radiomuseum.org
• Model: Téléphone Haut-Parleur de demonstration - Ducretet -Thomson; avant:

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 90 x 130 x 120 mm / 3.5 x 5.1 x 4.7 inch

• Net weight (2.2 lb = 1 kg)
• 0.7 kg / 1 lb 8.7 oz (1.542 lb)

• Author
• Model page created by Musée des Radios Museum. See "Data change" for further contributors.

• Other Models

• Here you find 657 models, 522 with images and 286 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Ducretet (-Thomson; avant: Fernand Ducretet et Ernest Roger etc.); Paris