• Country
• Great Britain (UK)

• Manufacturer / Brand
• ATM (Brand), Automatic Telephone Manufacturing Co. Ltd.; Liverpool

• Year
• 1923

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

• Radiomuseum.org ID
• 70539

• • alternative name: Automatic T.M.(GB)

• Main principle
• Crystal or Solid State Detector

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: ATM Crystal Receiver - ATM Brand, Automatic Telephone

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

• Dimensions (WHD)
• 8.3 x 7 x 8.3 inch / 211 x 178 x 211 mm

• External source of data
• Konrad Birkner

• 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 9 models, 9 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from ATM (Brand), Automatic Telephone Manufacturing Co. Ltd.; Liverpool