• Country
• Great Britain (UK)

• Manufacturer / Brand
• Radio Instruments Ltd (RI)., London

• Year
• 1923

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 205223

• Number of Tubes
• 7

• Valves / Tubes
• R_England R_England R_England R_England R_England R_England R_England

• Main principle
• TRF with regeneration

• 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, TUBES VISIBLE.

• from Radiomuseum.org
• Model: 7-Valve Set [GPO No. 0140] - Radio Instruments Ltd RI.,

• Shape
• Tablemodel, slant panel.

• Notes
• Radio Instruments 7-Valve Set Tuning Range 300 to 4,000 meters. BBC Approved P.M.G. No. 0140

• Price in first year of sale
• 77.00 GBP

• Literature/Schematics (1)
• May 26, 1923 The Wireless World & Radio Review ad on rear cover

• Author
• Model page created by Alan Larsen. See "Data change" for further contributors.

• Other Models

• Here you find 48 models, 42 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radio Instruments Ltd (RI)., London