Trophy 3 AC Version

BTS (B.T.S.) British Television Supplies; London

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  • Year
  • 1938 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 361708

 Technical Specifications

  • Number of Tubes
  • 2
  • Valves / Tubes
  • Main principle
  • TRF with regeneration
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Alternating Current supply (AC) / 50 - 100 Hz, 200-250 Volt
  • Loudspeaker
  • -Loudspeaker incorporated, but system not known.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Trophy 3 [AC Version] - BTS B.T.S. British Television
  • Shape
  • Tablemodel, with any shape - general.
  • Notes

  • The Trophy 3 AC is a significant model in the British Television Supplies, Ltd. (BTS) Trophy Series, representing a key evolution in the company’s acclaimed line of shortwave receivers. Introduced shortly after the Trophy 2, the Trophy 3 AC was designed for users seeking improved performance and convenience, offering mains-powered operation for continuous listening.

    Technical and Design Features

    • Power Supply: AC mains operation.
    • Tuning and Output: Enhanced tuning mechanism for more precise station selection compared to the Trophy 2.
    • Loudspeaker output: moving beyond the earlier headphone-only designs.
    • Frequency Range: The unit comes with two BTS One-Shot inductors covering 12-52 metres. Additional inductors are available to extend the complete wave range from 6.2 to 200 metres.

    Design
    The Trophy 3 was a TRF (Tuned Radio Frequency) receiver, typical for its era and purpose, offering straightforward operation and excellent performance for its class.

    Series Context
    The Trophy 3 AC & Trophy 3 Battery sits between the original Trophy 2 (battery-powered, headphone use) and the more advanced Trophy 5 (with features like band-spreading, B.F.O., and A.V.C.), offering a balanced mix of performance and accessibility. The top-end Trophy 8 further extended the series with additional refinements for serious enthusiasts.

    Price
    £6:6:0 with two one-shot inductors.

  • Price in first year of sale
  • 6.30 GB £
  • Mentioned in
  • -- Original prospect or advert (Practical & Amateur Wireless Jan 29, 1938, Page ii)
  • Author
  • Model page created by Gary Cowans. See "Data change" for further contributors.

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