R-148 series chassis

Stewart Warner Corp.; Chicago (IL)

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  • Year
  • 1936 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 138362
    • Brand: Ferrodyne

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

 Technical Specifications

  • Number of Tubes
  • 10
  • Main principle
  • Superhet with RF-stage; ZF/IF 456 kHz
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast plus 2 Short Wave bands.
  • Power type and voltage
  • Alternating Current supply (AC)
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: R-148 series chassis - Stewart Warner Corp.; Chicago
  • Shape
  • Chassis only or for «building in»
  • Notes
  • Chassis R148 is employed in several models;
    R148 = 115 V (60 cycles)
    R148X = 100-240 V (25-133 cycles, phono model / export model)
    push-pull af output stage; tuning eye.
  • Circuit diagram reference
  • Rider's Perpetual, Volume 8 = 1937 and before

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