• Country
• France

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

• Year
• 1923

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 159569

• • alternative name: SED

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

• Number of Tubes
• 4

• Valves / Tubes
• TM TM TM TM

• Main principle
• TRF with regeneration

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Storage and/or dry batteries / 4 & 80 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: Poste à 4 lampes forme piano CFL - Ducretet -Thomson; avant:

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 265 x 245 x 350 mm / 10.4 x 9.6 x 13.8 inch

• Notes

• Belhacène calls it "Piano 4 lampes ext.",as the leaflet does. CFL means: C= 4 tubes amplifier, top part; FL= Tuner, bottom part. Both parts are also available separately. Here they are combined (C + FL = CFL) in a piano cabinet.

  There are different versions: Both panels either with or without wave switch PO / GO.

• Price in first year of sale
• 720.00 FRF

• Source of data
• -- Original prospect or advert

• Literature/Schematics (1)
• TSF Antique 1921 à 1927 (page 36)

• Literature/Schematics (2)
• Ducretet les années 20 (pages 92-95)

• Author
• Model page created by Gabriel Rouiller. See "Data change" for further contributors.

• 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