112 (R-112) series chassis

Stewart Warner Corp.; Chicago (IL)

  • Year
  • 1933 ?
  • Category
  • Car Radio, perhaps also + sound player/recorder
  • Radiomuseum.org ID
  • 60505
    • Brand: Ferrodyne

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 456 kHz
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: 112 series chassis - Stewart Warner Corp.; Chicago
  • Shape
  • Chassis only or for «building in»
  • Notes
  • Chassis 112 can only be from 1933 or 1934 because the tube 6A7 was released in 1933 (eraliest date) and Rider's volume 4 is copyrighted 1934 (latest date). The chassis 112 (R-112) series is employed in model 1121 (auto radio); built-in vibrator for +B.
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 4 = ca. 1934 and before

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