• Year
  • 1923
  • Category
  • Radio module pre 1926 (not a part, not a key)
  • Radiomuseum.org ID
  • 192960

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 1
  • Main principle
  • Audio-Amplification; 1 AF stage(s)
  • Wave bands
  • - without
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Power Amplifier R-105 - Northern Electric Co. Ltd.;
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Notes
  • The Northern Electric R-105 Power Amplifier was initially designed for the 208A tube but was quickly changed to the 216A power amplifier tube.
  • Price in first year of sale
  • 30.00 cdn
  • Author
  • Model page created by Alan Larsen. See "Data change" for further contributors.

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The model Power Amplifier is part of the collections of the following members.

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