• Country
• United States of America (USA)

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

• Year
• 1936/1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 60944

• • Brand: Ferrodyne

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

• Number of Tubes
• 7

• Valves / Tubes
• 6A8 6K7 6H6 6F5 6G5 6F6 5Z4

• Main principle
• Superheterodyne (common); ZF/IF 456 kHz

• Tuned circuits
• 7 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 8 inch = 20.3 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: 1731 Ch= R-173 - Stewart Warner Corp.; Chicago

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• Notes

• Model 1731 uses chassis R173; mains supply 115 V (60 cycles) or 100-240 V (25-133 cycles, phono model / export model); tuning eye.

• 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
• Table Top Radios Vol. 1 Stein 98 (page 155.)

• Literature/Schematics (1)
• Machine Age to Jet Age II (page 291.)

• Literature/Schematics (2)
• Cathedral & Tombstone Radios (page 259.)

• Literature/Schematics (3)
• -- Original prospect or advert (The Stewart-Warner Folder for 1937.)

• Other Models

• Here you find 2111 models, 393 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)