Miniature Cathamplifier

Mingay's Wireless Manufacturing Ltd.; Sydney

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  • Year
  • 1950 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 339939

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Metal case, TUBES VISIBLE
  • from Radiomuseum.org
  • Model: Miniature Cathamplifier - Mingay's Wireless
  • Shape
  • Chassis only or for «building in»
  • Notes

  • Miniature Cathamplifier

    The Cathamplifier was developed by Charles A. Parry in 1949-50.

    It was a self-split, cathode‐driven push‐pull technique with a relatively low parts count.

    It required special transformers which were manufactured by Ferguson Transformers and Nova Electrical & Engineering Co.

    It could be used for output stages for radio receivers and amplifiers.

    Four models with outputs from 4.5-watts to 40 watts were described in  Mingays, The Cathamplifier Handbook of 1951.

    Full design details were published in the Australasian Radio Weekly, June 1950, and the Proceedings of the I.R.E., April 1950, page 460.

  • Mentioned in
  • -- Original-techn. papers. (Mingays, The Cathamplifier Handbook of 1951, Page 15.)
  • Author
  • Model page created by Gary Cowans. See "Data change" for further contributors.

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