• Country
• Great Britain (UK)

• Manufacturer / Brand
• British Radio Sales, London

• Year
• 1923 ??

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

• Radiomuseum.org ID
• 76857

• Number of Tubes
• 3

• Valves / Tubes

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

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast only (MW).

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

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Radiofone Type B, 3-unit system - British Radio Sales, London

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

• Notes

• 3-unit system.

• Mentioned in
• Tickling the Crystal; Sanders

• Literature/Schematics (1)
• ad in "The Wireless World and Radio Review", Sept.16, 1922.

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 2 models, 2 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from British Radio Sales, London