• Country
• France

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

• Year
• 1914–1917 ?

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 75384

• • alternative name: SED

• Main principle
• Crystal or Solid State Detector

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: détecteur à galène triple articulation - Ducretet -Thomson; avant:

• Shape
• Miscellaneous shapes - described under notes.

• Notes
• modèle de la Télégraphie Militaire à fixation latérale - laiton, ébonite.

• External source of data
• Guide du Collectionneur Biraud/Foster

• Author
• Model page created by Jean Claude Pigeon † 2008. See "Data change" for further contributors.

• Other Models

• Here you find 657 models, 522 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