• Country
• France

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

• Year
• 1936/1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 104087

• • 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 42 80

• Main principle
• Superheterodyne (common); 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 115-230 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 17 cm = 6.7 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: C725TO - Ducretet -Thomson; avant:

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Dimensions (WHD)
• 330 x 440 x 250 mm / 13 x 17.3 x 9.8 inch

• Notes

• 3 gammes d'ondes. Anti-fading, contrôle de tonalité. Prise pick-up.

  Ébénisterie noyer et magnolia massif.

  Voir aussi modèle TC70 pour secteur tous courants.

• Net weight (2.2 lb = 1 kg)
• 11 kg / 24 lb 3.7 oz (24.229 lb)

• Price in first year of sale
• 1,380.00 FRF

• Mentioned in
• Les Documents scolaires et post-scolaires, 12/1937, p.14

• Literature/Schematics (1)
• -- Schematic

• Literature/Schematics (2)
• Le Guide du Collectionneur TSF Biraud/Foster, Vol. I (page 162)

• Literature/Schematics (3)
• -- Original prospect or advert (Le Journal, 06.09.1936)

• Literature/Schematics (4)
• -- Original prospect or advert

• Author
• Model page created by John Koster. See "Data change" for further contributors.

• Other Models

• Here you find 658 models, 528 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