• Country
• France

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

• Year
• 1924 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 75634

• • alternative name: SED

• Number of Tubes
• 1

• Valves / Tubes

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: BF à Transfo S.E.D URI - Ducretet -Thomson; avant:

• Dimensions (WHD)
• 160 x 85 x 220 mm / 6.3 x 3.3 x 8.7 inch

• Notes
• Dessus en ébonite, comprenant un commutateur et les bornes d'alimentation 80v/4v.

• Other Models

• Here you find 655 models, 518 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