• Country
• Great Britain (UK)

• Manufacturer / Brand
• Gambrell Bros.Ltd., London

• Year
• 1924 ?

• Category
• Radio module pre 1926 (not a part, not a key)

• Radiomuseum.org ID
• 133432

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

• Main principle
• Tuner pre 1926 (not a wave trap)

• Tuned circuits
• 2 AM circuit(s)

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Unit No.2 Double Circuit Tuner 5559 - Gambrell Bros.Ltd., London

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

• Dimensions (WHD)
• 350 x 265 x 158 mm / 13.8 x 10.4 x 6.2 inch

• Notes
• Tuning selectable for either parallel or series connection. 2 variable capacitors.
  3 Plug-in Coils (double plug).

• Net weight (2.2 lb = 1 kg)
• 2.3 kg / 5 lb 1.1 oz (5.066 lb)

• Source of data
• - - Data from my own collection

• Literature/Schematics (1)
• Modern Wireless, Dec. 1924

• Author
• Model page created by Rudolf Osterkamp. See "Data change" for further contributors.

• Other Models

• Here you find 42 models, 36 with images and 6 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Gambrell Bros.Ltd., London