• Year
  • 1935 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 137904
    • Brand: Ferrodyne

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

 Technical Specifications

  • Number of Tubes
  • 6
  • Main principle
  • Superheterodyne (common); ZF/IF 456 kHz
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries / 2 or 3 & 135 & -9 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • from Radiomuseum.org
  • Model: 1394D Ch= R-139D - Stewart Warner Corp.; Chicago
  • Notes
  • Model 1394D uses chassis R139D; push-pull af output stage; ballast tube "1G1".
  • Circuit diagram reference
  • Rider's Perpetual, Volume 7 = 1936 and before

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