• Country
• France

• Manufacturer / Brand
• La Radio-Industrie (RI); Paris

• Year
• 1927/1928

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 86040

• Number of Tubes
• 4

• 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

• from Radiomuseum.org
• Model: Cryptadyne IV - La Radio-Industrie RI; Paris

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

• Mentioned in
• Le Guide du Collectionneur TSF Biraud/Foster, Vol. II (page 285)

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

• Other Models

• Here you find 42 models, 19 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from La Radio-Industrie (RI); Paris