• Country
• Great Britain (UK)

• Manufacturer / Brand
• Wireless Installations Ltd.; London

• Year
• 1923

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 204576

• Number of Tubes
• 2

• Valves / Tubes

• Main principle
• TRF with regeneration

• Wave bands
• Broadcast only (MW).

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

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: The "Duo" 2-Valve Set - Wireless Installations Ltd.;

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

• Notes
• Wireless Installations Limited The "Duo" Two-Valve Receiver.

• Price in first year of sale
• 10.00 GBP

• Literature/Schematics (1)
• April 14, 1923 The Wireless World & Radio Review page Li

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

• Other Models

• Here you find 11 models, 8 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Wireless Installations Ltd.; London