National 5-Valve Vibrator Portable CMU

National (Brand), Burns, John and Co., Ltd.; Auckland

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  • Year
  • 1939
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 354021

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 256 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt
  • Loudspeaker
  • Presumably Dynamic Loudspeaker (moving coil)
  • Material
  • Leather / canvas / plastic - over other material
  • from Radiomuseum.org
  • Model: National 5-Valve Vibrator Portable CMU - National Brand, Burns, John
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 11.25 x 9 x 8 inch / 286 x 229 x 203 mm
  • Notes

  • NATIONAL 5-Valve Vibrator Portable 

    A really high-power, efficient job, ideal for Launches, Yachts, Scows, and other larger type of craft, etc. Wonderfully economical operation from accumulators, Gets Australia and all N.Z. stations. Splendid tone. AIl latest features. Measures only 11in. x 9in, x 8in. Requires only very short aerial! £19/15/-

    See also Courier Model CMU.

    Manufactured by Radio (1936) Ltd for John Burns & Co. Ltd.

  • Price in first year of sale
  • 19.75 NZ £
  • Mentioned in
  • -- Original prospect or advert (Auckland Star 15 September 1939 Page 11)
  • Author
  • Model page created by Brian Stevens. See "Data change" for further contributors.

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