• Country
• Great Britain (UK)

• Manufacturer / Brand
• Marconi Co. (Marconiphone, Marconi's Wireless Telegraph Co. Ltd.), GB (not tubes - see also HMV His Master's Voice)

• Year
• 1924

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

• Radiomuseum.org ID
• 76216

• Main principle
• Crystal or Solid State Detector

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Various materials

• from Radiomuseum.org
• Model: Marconiphone Chelmsford Baby - Marconi Co. Marconiphone,

• Shape
• Miscellaneous shapes - described under notes.

• Notes
• Long Wave only! Black ebonite oval base;

• Source of data
• Radio! Radio!

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

• Other Models

• Here you find 502 models, 334 with images and 317 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Marconi Co. (Marconiphone, Marconi's Wireless Telegraph Co. Ltd.), GB (not tubes - see also HMV His Master's Voice)