• Country
• Great Britain (UK)

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

• Year
• 1927

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 203518

• Number of Tubes
• 3

• Valves / Tubes

• Main principle
• TRF with regeneration

• Tuned circuits
• 1 AM circuit(s)

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

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

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Wooden case

• from Radiomuseum.org
• Model: Vulcan III - Graves, J.G. Ltd.; Sheffield

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

• Dimensions (WHD)
• 14 x 8 x 0 inch / 356 x 203 x 0 mm

• Notes
• Grid-leak detector, two transformer-coupled LF valves. Wave range 250-3000 metres. Oak cabinet. Price includes valves, batteries, loudspeaker and aerial.

• Price in first year of sale
• 11.00 GBP

• Source of data
• Wireless World (The), London (WW, 79)

• Author
• Model page created by John Koster. 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