C7

• Country
• France

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

• Year
• 1932/1933

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 37584

• • alternative name: SED

• Picture
• Schematics

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

• Number of Tubes
• 7

• Valves / Tubes
• 35 or UY635 27 or UY627 24 or UY624 35 27 47 or UY647 80 or UX680 unknown_regulator

• Main principle
• Superhet with RF-stage; ZF/IF 109 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 115; 130; 150; 170; 225; 250 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: C7 - Ducretet -Thomson; avant:

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

• Dimensions (WHD)
• 330 x 450 x 270 mm / 13 x 17.7 x 10.6 inch

• Notes

• Commande unique. Étage HF. HP électrodynamique Thomson.

  Utilise und régulatrice 0.4 à 1.0 A - 25/75 V, suivant voltage du réseau et type de transformateur emploié.

• Net weight (2.2 lb = 1 kg)
• 17 kg / 37 lb 7.1 oz (37.445 lb)

• Price in first year of sale
• 2,990.00 FRF

• External source of data
• Serge Laffont/Martin Renoth

• Mentioned in
• -- Original prospect or advert

• Literature/Schematics (1)
• Schémathèque Toute la Radio (STR) (No. 246)

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

• Literature/Schematics (3)
• -- Original-techn. papers.

• 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