• Country
• Russian Federation

• Manufacturer / Brand
• Wireles telegraphy and telephonic society

• Year
• 1914

• Category
• Detector-Radio (Crystal or diode, without tubes/transistors)

• Radiomuseum.org ID
• 180840

• Main principle
• Crystal or Solid State Detector; Crystal-detection 1 circuit (no tubes)

• Wave bands
• Broadcast and LongWave in ONE range.

• Power type and voltage
• No Power needed

• Loudspeaker
• - only for Earphone!

• from Radiomuseum.org
• Model: Crystal Radio - Wireles telegraphy and

• Shape
• Tablemodel, with any shape - general.

• Notes

• The first known Crystal Radio set in Russia (till SU)

• Net weight (2.2 lb = 1 kg)
• 32 kg / 70 lb 7.8 oz (70.485 lb)

• Price in first year of sale
• 750.00 Ruble

• Mentioned in
• Book "Radio inventor A.S.Popov"1948, Kaunas, Lithuania

• Author
• Model page created by Zenonas Langaitis. 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 Wireles telegraphy and telephonic society