W.T. Sets, Field C.W. Mk III Transmitter

Wireless Telegraphy Factory, War Department; Soho W

Data
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  • Year
  • 1917 ??
  • Category
  • Military transmitter
  • Radiomuseum.org ID
  • 341983

 Technical Specifications

  • Number of Tubes
  • 2
  • Valves / Tubes
  • Main principle
  • Transmitter
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Wooden case, TUBES VISIBLE.
  • from Radiomuseum.org
  • Model: W.T. Sets, Field C.W. Mk III Transmitter - Wireless Telegraphy Factory,
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 294.2 x 209 x 320 mm / 11.6 x 8.2 x 12.6 inch
  • Notes

  • This (CW) set comprised a transmitter and a heterodyne receiver in separate boxes. It came into service in 1917 and was used for forward area telegraphy.

    The transmitter was rated at 30-watts and had a range of 3.7km. It utilised two valves which were either the type B or AT25.

    The receiver had two R valves. The first of these was used in a heterodyne circuit and the second was as an audio frequency amplifier for the Morse signal.

    The complete set also included a heterodyne wavemeter, Selector Unit, and Rectifier Unit.

    Total production was a little under 3000 for both the transmitter and the receiver and approximately 400 of the Selector Units.

    Frequency Band: 450-1450 metres.

     

  • Net weight (2.2 lb = 1 kg)
  • 18.5 lb (18 lb 8 oz) / 8.399 kg
  • Mentioned in
  • - - Manufacturers Literature (Communication by Wireless (SS.141) was issued by the War Office during the First World War)

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The model W.T. Sets, Field C.W. Mk III is part of the collections of the following members.

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