• Country
• United States of America (USA)

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

• Year
• 1936

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 60939

• • Brand: Ferrodyne

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

• Number of Tubes
• 6

• Valves / Tubes
• 6A8G 6K7G 6Q7G 6K6G 6G5 5V4G

• Main principle
• Superheterodyne (common); ZF/IF 262 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC)

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 12 inch = 30.5 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: 1725 Ch= R-172 - Stewart Warner Corp.; Chicago

• Shape
• Console with any shape - in general

• Notes

• Model 1725 uses chassis R172; mains supply 115 V (60 cycles) or 100-240 V (25-133 cycles, phono model / export model); tuning eye.

  MODEL 1725...6 Tubes. Full 12-inch Photo-Tone Speaker. All Wave Superheterodyne. 11 Tuned Circuits, 6-inch Magic Dial with 3-Band Tuning, Precision Station Selector, Shadow Beam Tuner, Automatic Volume Control, Variable Tone Control, Power Line Filter, etc. 

• External source of data
• Ernst Erb

• Source of data
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Circuit diagram reference
• Rider's Perpetual, Volume 8 = 1937 and before

• Mentioned in
• Pre-War Consoles

• Other Models

• Here you find 2111 models, 395 with images and 1968 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Stewart Warner Corp.; Chicago (IL)