• Year
  • 1939
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 171374

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 460 kHz; 3 AF stage(s); Reflex
  • Tuned circuits
  • 8 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries / 135 & 90 & 2 & -4.5 & -9 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6.5 inch = 16.5 cm
  • from Radiomuseum.org
  • Model: C139B Ch= 518B - Columbia Gramophone Aust. Pty.
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • This radio has the same chassis as the HMV model 21. The 2nd 1F7G is reflexed as the 2nd I.F. amplifier and the 1st A.F. amplifier.
  • Author
  • Model page created by Stuart Irwin. See "Data change" for further contributors.

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