Columbus 47

Columbus (Brand); Radio Centre Ltd.; Wellington

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  • Year
  • 1938/1939
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 172123

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

 Technical Specifications

  • Number of Tubes
  • 14
  • Main principle
  • Superhet with RF-stage; ZF/IF 456 kHz; 5 AF stage(s)
  • Tuned circuits
  • 9 AM circuit(s)
  • Wave bands
  • Broadcast plus 2 Short Wave bands.
  • Details
  • Record Player (perh.Changer)
  • Power type and voltage
  • Alternating Current supply (AC) / 230 Volt
  • Loudspeaker
  • 2 Loudspeakers
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Columbus 47 - Columbus Brand; Radio Centre
  • Shape
  • Console, Lowboy (legs < 50 %).
  • Notes

  • This model has two audio channels for high and low frequencies. The 6F6 drives a 5 inch electrodynamic tweeter and the 6L6s drive a 12 inch permanent magnet woofer. There are two chassis. The "RF" chassis is similar to the model 43 and the woofer amplifier chassis has the 6C5G, 6L6s and 5Z3 valves. Both chassis have their own power supplies. The model number seems to refer to both the power amplifier chassis and the radio as a whole.

    See also Courtenay Model 47.

  • Circuit diagram reference
  • Australian Official Radio Service Manual Vol. I I
  • Literature/Schematics (1)
  • Mingay's Radio Diagram & I.F. Index
  • Author
  • Model page created by Stuart Irwin. See "Data change" for further contributors.

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