• Country
• Sweden

• Manufacturer / Brand
• Stern & Stern (Concerton / Conserton), S&S; Stockholm

• Year
• 1930

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 134706

• Number of Tubes
• 4

• Valves / Tubes
• A442 A415 A415 B405

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

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Storage and/or dry batteries / 120 & 9 & 4 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Concerton 47 - Stern & Stern Concerton /

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

• Dimensions (WHD)
• 440 x 230 x 237 mm / 17.3 x 9.1 x 9.3 inch

• Notes
• This is a dedicated shortwavereciever but changeable coils are supplied for different wavebands also up to the broadcast wavelenghts making the set usable for the range: 15 to 580 meters. A stamped text on the instructionpaper reads as follows: "All "Concerton 47" delivered after 1:st Oct. 1930 are - for greater volume of reception - equipped with B 443 as output valve instead of B 405."

• Net weight (2.2 lb = 1 kg)
• 7.750 kg / 17 lb 1.1 oz (17.07 lb)

• Source of data
• -- Original-techn. papers.

• Other Models

• Here you find 395 models, 226 with images and 173 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Stern & Stern (Concerton / Conserton), S&S; Stockholm