• Country
• United States of America (USA)

• Manufacturer / Brand
• Keystone Radio Service, Philadelphia

• Year
• 1925

• Category
• Kit (Parts plus instruction) or building instructions only

• Radiomuseum.org ID
• 45504

• Main principle
• Superhet, IF regeneration

• Material
• Various materials

• from Radiomuseum.org
• Model: Kit - Keystone Radio Service,

• Price in first year of sale
• 30.00 $

• External source of data
• Ernst Erb

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

• Other Models

• Here you find 3 models, 1 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Keystone Radio Service, Philadelphia