• Country
• United States of America (USA)

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

• Year
• 1938

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 61387

• • Brand: Ferrodyne

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

• Number of Tubes
• 5

• Valves / Tubes
• 6A8G 6K7 6Q7G 6K6G 5W4G

• Main principle
• Superheterodyne (common); ZF/IF 465 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 117 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 5 inch = 12.7 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: 91-512 Ch= 91-51 - Stewart Warner Corp.; Chicago

• Shape
• Tablemodel with Push Buttons.

• Dimensions (WHD)
• 14.5 x 8.5 x 7.5 inch / 368 x 216 x 191 mm

• Notes

• Model 91-512 uses chassis 91-51; mains supply 117 V (60 cycles); push button tuner.

  Ingraham cabinet.

• Net weight (2.2 lb = 1 kg)
• 11 lb 8 oz (11.5 lb) / 5.221 kg

• 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 10 = 1939 and before

• Mentioned in
• Collector's Guide to Antique Radios 4. Edition

• Literature/Schematics (1)
• Machine Age to Jet Age II (page 289.)

• 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)