Wireless Set No.7

MILITARY U.K. (different makers for same model)

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  • Year
  • 1935/1936
  • Category
  • Military Transceiver (TRX)
  • Radiomuseum.org ID
  • 203440

 Technical Specifications

  • Number of Tubes
  • 13
  • Main principle
  • Transceiver; ZF/IF 100 kHz
  • Wave bands
  • Short Wave (SW only)
  • Power type and voltage
  • Storage Battery for all (e.g. for car radios and amateur radios) / 12 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Wireless Set No.7 - MILITARY U.K. different makers
  • Shape
  • Boatanchor (heavy military or commercial set >20 kg).
  • Dimensions (WHD)
  • 29.5 x 16.75 x 13 inch / 749 x 425 x 330 mm
  • Notes
  • Wireless set No. 7: Short range transceiver covering 1,875 - 5 MHz in two ranges (1,875-3 / 3-5 MHz), AM (A3), MCW (A2), pout 5 Watts;
    powered by 12 V accumulator for heaters, rotary transformer for 1000 V HT and anode converter 150 V for receiver HT and grid bias, vertical 6 foot rod antenna;
    used by British Army for short range communications between armoured fighting vehicles, in fact one of the earliest "tank radios".
    The set was in fact a redesigned Wireless Set 2 in a characteristic triangular shape to fit in a tank; an early series of twelfe sets wars ready for trials in 1934, 50 sets followed in 1936. Most of the sets were used in tanks in the Palestina campaign in 1936.
  • Mentioned in
  • Wireless for the Warrior Vol. 1, L. Meulstee
  • Author
  • Model page created by Martin Bösch. See "Data change" for further contributors.

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