• 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
• 192960

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

• Number of Tubes
• 1

• Valves / Tubes
• 208A or 216A

• 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

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

• 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