• Country
• United States of America (USA)

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

• Year
• 1930 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 61508

• • Brand: Ferrodyne

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

• Number of Tubes
• 8

• Valves / Tubes
• 224 224 224 227 227 245 245 280

• Main principle
• TRF without regeneration; Screengrid 1926-1935

• Tuned circuits
• 4 AM circuit(s)

• Wave bands
• Broadcast only (MW).

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

• Loudspeaker
• Permanent or electro-dynamic (moving coil), system not known yet.

• from Radiomuseum.org
• Model: 961 Table [25 c/s] - Stewart Warner Corp.; Chicago

• Shape
• Tablemodel, with any shape - general.

• Notes
• 25 cycle supply version of 951 AC. Belongs to the 950 series.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Radio College of Canada

• Literature/Schematics (1)
• Rider's Perpetual, Volume 1 = 1931/1934 (1919 to 1931)

• 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)