• Year
  • 1938
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 61387
    • 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 465 kHz
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 117 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 5 inch = 12.7 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 91-512 Ch= 91-51 - Stewart Warner Corp.; Chicago
  • Shape
  • Tablemodel with Push Buttons.
  • Dimensions (WHD)
  • 14.5 x 8.5 x 7.5 inch / 368 x 216 x 191 mm
  • Notes
  • Model 91-512 uses chassis 91-51; mains supply 117 V (60 cycles); push button tuner.

    Ingraham cabinet.

  • Net weight (2.2 lb = 1 kg)
  • 11 lb 8 oz (11.5 lb) / 5.221 kg
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 10 = 1939 and before

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The model 91-512 is part of the collections of the following members.

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