• Country
• Great Britain (UK)

• Manufacturer / Brand
• Marconi's Wireless Telegraph Co. Ltd.

• Year
• 1920 ??

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

• Radiomuseum.org ID
• 307539

• Number of Tubes
• 7

• Valves / Tubes
• QX V24 V24 V24 V24 V24 V24

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Storage and/or dry batteries / 6 & 50 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Amplifier and Detector Type 55F - Marconi's Wireless Telegraph

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

• Dimensions (WHD)
• 360 x 200 x 170 mm / 14.2 x 7.9 x 6.7 inch

• Notes

• Amplifier and Detector. Wave Range 500 - 3000 metres.

  Détecteur et amplificateur BF.

• Net weight (2.2 lb = 1 kg)
• 4.6 kg / 10 lb 2.1 oz (10.132 lb)

• Author
• Model page created by Musée des Radios Museum. See "Data change" for further contributors.

• Other Models

• Here you find 90 models, 88 with images and 16 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Marconi's Wireless Telegraph Co. Ltd.