• 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
• 309354

• Number of Tubes
• 1

• Valves / Tubes
• R_Marconi

• 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: Amplifying Detector Unit No. 4 - Marconi Scientific Instrument

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

• Notes

• Marconi Scientific Unit No. 4 Amplifying Detector

   

• Mentioned in
• - - Manufacturers Literature (1922 Marconi Scientific Instrument Co. catalog)

• Author
• Model page created by Alan Larsen. 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