• Country
• Great Britain (UK)

• Manufacturer / Brand
• Ionophone (Brand), J. A. Coomes & Co. Ltd., London

• Year
• 1923 ?

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

• Radiomuseum.org ID
• 76908

• Main principle
• Crystal or Solid State Detector

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• from Radiomuseum.org
• Model: Crystal Set - Ionophone Brand, J. A. Coomes

• Notes
• GPO No.185;

• Mentioned in
• 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 6 models, 5 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Ionophone (Brand), J. A. Coomes & Co. Ltd., London