• Country
• Great Britain (UK)

• Manufacturer / Brand
• J.R. (Brand) Jean Rigaut, Grippall Electrical Products, Ltd.; London

• Year
• 1924

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

• Radiomuseum.org ID
• 76735

• • alternative name: JR

• Main principle
• Crystal or Solid State Detector

• Tuned circuits
• 1 AM circuit(s)

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

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: BCM / JR [enclosed model] - J.R. Brand Jean Rigaut,

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

• Dimensions (WHD)
• 7.25 x 5.75 x 5.25 inch / 184 x 146 x 133 mm

• Notes
• loading coil for LW.
  Slightly sloping panel. There are versions with aerial, earth, and headphone terminals/sockets inside on panel or outside on cabinet.

• Source of data
• Tickling the Crystal; Sanders

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

• Other Models

• Here you find 11 models, 10 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from J.R. (Brand) Jean Rigaut, Grippall Electrical Products, Ltd.; London