• Year
  • 1922 ??
  • Category
  • Radio module pre 1926 (not a part, not a key)
  • Radiomuseum.org ID
  • 304100

 Technical Specifications

  • Number of Tubes
  • 3
  • Valves / Tubes
  • Main principle
  • Detector with Vacuum Tube (Valve), no tuner; 2 AF stage(s)
  • Wave bands
  • - without
  • Power type and voltage
  • Storage and/or dry batteries / 5 & 80 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Wooden case, TUBES VISIBLE.
  • from Radiomuseum.org
  • Model: Detector 2-Stage Amplifier M3 - Marconi Scientific Instrument
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 270 x 200 x 180 mm / 10.6 x 7.9 x 7.1 inch
  • Notes
  • Détecteur-amplificateur BF, sans circuit d'accord. Se place après un boîtier d'accord.
    Tubes: DER5 DER5 DER5?

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

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The model Detector 2-Stage Amplifier is part of the collections of the following members.

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