• Country
• France

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

• Year
• 1939

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 63012

• • alternative name: SED

• Number of Tubes
• 7

• Valves / Tubes
• 6K7G 6TH8 6K7G 6Q7G 6L6G 5Y3G 6G5

• Main principle
• Superheterodyne (common); ZF/IF 450 kHz

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

• Power type and voltage
• Alternating Current supply (AC) / 105-255 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 9 cm = 3.5 inch

• from Radiomuseum.org
• Model: C 970 - Ducretet -Thomson; avant:

• Dimensions (WHD)
• 640 x 340 x 330 mm / 25.2 x 13.4 x 13 inch

• Notes

• 25 Hz models are also known.

• External source of data
• Serge Laffont/Martin Renoth

• Source of data
• Le grand livre de la TSF

• Literature/Schematics (2)
• Le Guide du Collectionneur TSF Biraud/Foster, Vol. I (page 166)

• 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