• Country
• France

• Manufacturer / Brand
• Hamm, Éts. L.; Paris, Levallois

• Year
• 1922 ?

• Category
• Radio module pre 1926 (not a part, not a key)

• Radiomuseum.org ID
• 318722

• Number of Tubes
• 2

• Valves / Tubes
• TM TM

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Storage and/or dry batteries / 4 & 80 Volt

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

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: Amplificateur BF à 2 lampes extérieures - Hamm, Éts. L.; Paris,

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Notes

• S'utilise avec le récepteur Poste à 4 lampes extérieures.

• Mentioned in
• TSF Antique 1921 à 1927 (Page 95 figure 77)

• Author
• Model page created by Musée des Radios Museum. See "Data change" for further contributors.

• Other Models

• Here you find 3 models, 3 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hamm, Éts. L.; Paris, Levallois