• Country
• Great Britain (UK)

• Manufacturer / Brand
• Marconi Scientific Instrument Co. LTD.,The; London

• Year
• 1922 ?

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

• Radiomuseum.org ID
• 303203

• Number of Tubes
• 1

• Valves / Tubes
• R_England

• Main principle
• Detector with Vacuum Tube (Valve), no tuner

• Wave bands
• - without

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

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: Unit No. 3 [Type R valve] - Marconi Scientific Instrument

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

• Dimensions (WHD)
• 180 x 220 x 180 mm / 7.1 x 8.7 x 7.1 inch

• Notes

• See also this Unit No. 3 with Type V24 valve.

• Net weight (2.2 lb = 1 kg)
• 1.7 kg / 3 lb 11.9 oz (3.744 lb)

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

• Other Models

• Here you find 36 models, 36 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Marconi Scientific Instrument Co. LTD.,The; London