• Country
• France

• Manufacturer / Brand
• Radio-Sigma; Paris, Neuilly-sur-Seine

• Year
• 1929

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 87009

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

• Number of Tubes
• 5

• Valves / Tubes
• A441N A410N A410N A410N PT425

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown)

• Power type and voltage
• Alternating Current supply (AC) / 110; 220 Volt

• Loudspeaker
• -Loudspeaker incorporated, but system not known.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Récepteur portatif 5 lampes - Radio-Sigma; Paris, Neuilly-

• Shape
• Tablemodel, with any shape - general.

• Notes
• Modèle A sur Alternatif. Modèle B sur Batterie.

• Mentioned in
• Le Guide du Collectionneur TSF Biraud/Foster, Vol. II (page 310)

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• Other Models

• Here you find 24 models, 21 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radio-Sigma; Paris, Neuilly-sur-Seine