• Country
• France

• Manufacturer / Brand
• Derogy; Paris

• Year
• 1920–1925 ??

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

• Radiomuseum.org ID
• 317868

• Number of Tubes
• 3

• Valves / Tubes

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

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

• Power type and voltage
• Storage and/or dry batteries

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

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: Recepteur à 3 tubes ext. - Derogy; Paris

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

• Dimensions (WHD)
• 330 x 250 x 210 mm / 13 x 9.8 x 8.3 inch

• Notes

• Collection privée (réf.:663)

• Net weight (2.2 lb = 1 kg)
• 3.1 kg / 6 lb 13.3 oz (6.828 lb)

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

• Other Models

• Here you find 1 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Derogy; Paris