• Country
• United States of America (USA)

• Manufacturer / Brand
• National Radio Manufacturing Co.; Oklahoma City

• Year
• 1925

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 49671

• Number of Tubes
• 4

• Valves / Tubes

• Main principle
• TRF without regeneration; 2 AF stage(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Metal case

• from Radiomuseum.org
• Model: National Country Gentleman [Portable] - National Radio Manufacturing

• Shape
• Portable set > 8 inch (also usable without mains)

• Notes

• Two dials (primary tuning control knobs)

  One stage radio, detector and two stages audio. 

• Price in first year of sale
• 80.00 $

• External source of data
• Ernst Erb

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

• Mentioned in
• March 1925, Radio News magazine page 1659

• Other Models

• Here you find 17 models, 2 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from National Radio Manufacturing Co.; Oklahoma City