• Country
• Canada

• Manufacturer / Brand
• Northern Electric Co. Ltd.; Montreal, QC ; Belleville, ON

• Year
• 1923

• Category
• Radio module pre 1926 (not a part, not a key)

• Radiomuseum.org ID
• 192962

• Number of Tubes
• 3

• Valves / Tubes
• 208A or 216A 208A or 216A 208A or 216A

• 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

• Mentioned in
• The Early Development of Radio in Canada 1901-1930 (Page 51 and Page 58)

• Author
• Model page created by Alan Larsen. See "Data change" for further contributors.

• Other Models

• Here you find 291 models, 246 with images and 254 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Northern Electric Co. Ltd.; Montreal, QC ; Belleville, ON