• Country
• United States of America (USA)

• Manufacturer / Brand
• Northwestern Radio Mfg. Co.; Portland, OR

• Year
• 1922

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 49752

• Number of Tubes
• 3

• Valves / Tubes

• Main principle
• Crystal or Solid State Detector with Amplifer

• from Radiomuseum.org
• Model: 22-2 - Northwestern Radio Mfg. Co.;

• Notes
• 2 boxes

• External source of data
• Ernst Erb

• Source of data
• Radio Collector`s Guide 1921-1932

• Other Models

• Here you find 17 models, 11 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Northwestern Radio Mfg. Co.; Portland, OR