• Country
• Great Britain (UK)

• Manufacturer / Brand
• Graves, J.G. Ltd.; Sheffield

• Year
• 1923/1924

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 76603

• Number of Tubes
• 1

• Valves / Tubes

• Main principle
• Audio-Amplification

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

• Loudspeaker
• - For headphones or amp.

• Material
• Various materials

• from Radiomuseum.org
• Model: Ariel Amplifier - Graves, J.G. Ltd.; Sheffield

• Shape
• Chassis only or for «building in»

• Notes
• Matches the Ariel Crystal Set, where it fits into the headphone compartment.

• 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 17 models, 15 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Graves, J.G. Ltd.; Sheffield