One Stage Voice Amplifier Type NBI

Marconi's Wireless Telegraph Co. Ltd.

  • Year
  • 1922/1923
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 303890

 Technical Specifications

  • Number of Tubes
  • 1
  • Valves / Tubes
  • DE5B
  • Main principle
  • Audio-Amplification; 1 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
  • from Radiomuseum.org
  • Model: One Stage Voice Amplifier Type NBI - Marconi's Wireless Telegraph
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Dimensions (WHD)
  • 220 x 190 x 200 mm / 8.7 x 7.5 x 7.9 inch
  • Net weight (2.2 lb = 1 kg)
  • 2.2 kg / 4 lb 13.5 oz (4.846 lb)

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The model One Stage Voice Amplifier is part of the collections of the following members.

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