• Country
• Great Britain (UK)

• Manufacturer / Brand
• Radio Instruments Ltd (RI)., London

• Year
• 1923 ?

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 215355

• Main principle
• Crystal or Solid State Detector

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: RI Vertical Crystal detector - Radio Instruments Ltd RI.,

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 3 x 0 x 2.25 inch / 76 x 0 x 57 mm

• Notes
• Radio Instruments LTD Stand Alone Crystal Detector

• Author
• Model page created by Alan Larsen. See "Data change" for further contributors.

• Other Models

• Here you find 48 models, 42 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radio Instruments Ltd (RI)., London