• Country
• United States of America (USA)

• Manufacturer / Brand
• Day-Fan Electric Co.; Dayton, Ohio (Fan and Motor Company)

• Year
• 1931

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 42769

• • alternative name: Dayton Fan and Motor Co.

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

• Number of Tubes
• 7

• Valves / Tubes
• 32 32 32 32 30 31 31

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

• Tuned circuits
• 4 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries / 2 & 67.5 & 90 & 135 & -3 & -4.5 & -22.5 Volt

• Loudspeaker
• -Loudspeaker incorporated, but system not known.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Pioneer 170 - Day-Fan Electric Co.; Dayton,

• Shape
• Console, Lowboy (legs < 50 %).

• Notes
• Push-pull af output.
  Both Grinders Collectors Guide and Riders are in error when they allocate pre 1930 models to GM Radio.

• Price in first year of sale
• 136.00 $

• External source of data
• Ernst Erb

• Source of data
• Radio Collector`s Guide 1921-1932

• Circuit diagram reference
• Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

• Other Models

• Here you find 109 models, 38 with images and 44 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Day-Fan Electric Co.; Dayton, Ohio (Fan and Motor Company)