• Country
• United States of America (USA)

• Manufacturer / Brand
• Stewart Warner Corp.; Chicago (IL)

• Year
• 1929

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 61494

• • Brand: Ferrodyne

• Number of Tubes
• 7

• Valves / Tubes

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown)

• Power type and voltage
• Direct Current supply (DC)

• Material
• Metal case

• from Radiomuseum.org
• Model: MT 921DC - Stewart Warner Corp.; Chicago

• Shape
• Tablemodel, with any shape - general.

• Notes
• One dial (primary tuning control knob)

• Price in first year of sale
• 97.00 $

• External source of data
• Ernst Erb

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

• Mentioned in
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Other Models

• Here you find 2115 models, 396 with images and 1972 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Stewart Warner Corp.; Chicago (IL)