• Country
• Great Britain (UK)

• Manufacturer / Brand
• Metropolitan-Vickers (Metro-Vick, Cosmos); GB

• Year
• 1925

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

• Radiomuseum.org ID
• 70536

• • Brand: Cosmos-valves

• Main principle
• Crystal or Solid State Detector

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

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Cosmos Radiophone C4 - Metropolitan-Vickers Metro-

• Dimensions (WHD)
• 6.3 x 4 x 6.3 inch / 160 x 102 x 160 mm

• Notes
• From the bottom side interchangeable coils for BC and LW . Both Sanders and Hill call Ebonite as material. That is obviously in error, since the material appears to be bakelite (by heat test).

• Net weight (2.2 lb = 1 kg)
• 1 kg / 2 lb 3.2 oz (2.203 lb)

• Price in first year of sale
• 1.00 GBP

• External source of data
• Konrad Birkner

• Mentioned in
• Radio! Radio!

• Literature/Schematics (1)
• 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 39 models, 37 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Metropolitan-Vickers (Metro-Vick, Cosmos); GB