• Country
• France

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

• Year
• 1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 33916

• • alternative name: SED

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 5

• Valves / Tubes
• 6A7 6D6 75 EL3 80

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Alternating Current supply (AC) / 115-255 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 19 cm = 7.5 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: C850 [EL3] - Ducretet -Thomson; avant:

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

• Dimensions (WHD)
• 500 x 270 x 250 mm / 19.7 x 10.6 x 9.8 inch

• Notes
• 25Hz models also exist.

• External source of data
• Serge Laffont/Martin Renoth

• Source of data
• Le grand livre de la TSF

• Other Models

• Here you find 657 models, 523 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