• Year
  • 1923
  • Category
  • Radio module pre 1926 (not a part, not a key)
  • Radiomuseum.org ID
  • 192962

 Technical Specifications

  • Number of Tubes
  • 3
  • Main principle
  • Audio-Amplification; 2 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-107 - Northern Electric Co. Ltd.;
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Notes
  • The Northern Electric R-107 Power Amplifier was initially designed for the 208A tubes but was quickly changed to the 216A power amplifier tubes. This power amplifier was Norther Electrics version of the Western Electric 7A Amplifier. This power amplifier could drive a loud speaker. The NE R-107 Power amplifier is a two stage audio amplifier with 216A tubes (originally 208A) acting as a driver with a push-pull output.
  • Price in first year of sale
  • 70.00 cdn
  • Author
  • Model page created by Alan Larsen. See "Data change" for further contributors.

 Collections | Museums | Literature


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