• Country
• Great Britain (UK)

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

• Year
• 1916

• Category
• Morse-Equipment & TTY, RTTY, TDD etc.

• Radiomuseum.org ID
• 199682

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

Click on the schematic thumbnail to request the schematic as a free document.

• Wave bands
• - without

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Telegraph key with buzzer - ATM Brand, Automatic Telephone

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 165 x 85 x 137 mm / 6.5 x 3.3 x 5.4 inch

• Notes

• A.T.M. Co. Ltd. Telegraph key with buzzer.
  Mechanical parts made of brass on a wooden base. Buzzer coils have 2× 22 Ω.

  Also Siemens Brothers & Co. Ltd. and Silvertown, London as a manufacturer known.

• Net weight (2.2 lb = 1 kg)
• 1.2 kg / 2 lb 10.3 oz (2.643 lb)

• Author
• Model page created by Bernd P. Kieck. 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