• 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
• 60912

• • Brand: Ferrodyne

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

• Number of Tubes
• 5

• Valves / Tubes
• 6K7G 6K7G 6J7G 6K6G 6X5G

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

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm

• from Radiomuseum.org
• Model: 1685 Ch= R-168 - Stewart Warner Corp.; Chicago

• Notes

• Model 1685 uses chassis R168; mains supply 115 V (60 cycles) or 115 V (25 cycles).

  MODEL 1685...5 Tubes. Superheterodyne with 6 Tuned Circuits. Covers Standard Broadcast 525 to 1730 k.c. and second Police Band 2300 to 2600 k.c. 4-inch Illuminated Dial with Accurate Station Selector, Tone Control, Code Rejection and Power Line Filters, 8-inch Dynamic Speaker, etc. 

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 9 = 1938 and before

• 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)