• Country
• France

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

• Year
• 1956

• Category
• Car Radio, perhaps also + sound player/recorder

• Radiomuseum.org ID
• 105902

• • alternative name: SED

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

• Number of Tubes
• 6

• Valves / Tubes
• 6BA6 6BE6 6BA6 6AV6 6AQ5 6X4

• Number of Transistors

• Semiconductors
• Vibreur

• Main principle
• Superhet with RF-stage; ZF/IF 458 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

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

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 6/12 Volt

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

• Power out
• 3.5 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: L1730 - Ducretet -Thomson; avant:

• Shape
• Chassis only or for «building in»

• Notes

• Radio de voiture en 2 châssis interconnectées.

  3 gammes d'ondes :

  • GO 155 à 265 kHz
  • PO 520 à 1600 kHz
  • OC 5,95 à 6,3 MHz (bande étalée 49m)

  Double impédance de sortie : 3,5 et 7 ohms permettant le branchement de 1 ou 2 HP.

  Présente les mêmes caractérisques que le modèle L1751 sauf pour la partie BF.

• Literature/Schematics (1)
• -- Original-techn. papers.

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

• Other Models

• Here you find 658 models, 525 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