Rebecca coaxial antenna switch Type 78A

Dynatron Radio Ltd., Maidenhead, Berkshire

Data
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  • Year
  • 1943 ?
  • Category
  • Military Equipment (not Re, Tr or RXT)
  • Radiomuseum.org ID
  • 304298

 Technical Specifications

  • Wave bands
  • VHF incl. FM and/or UHF (see notes for details)
  • Power type and voltage
  • Direct Current supply (DC) / 24 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Rebecca coaxial antenna switch Type 78A - Dynatron Radio Ltd.,
  • Dimensions (WHD)
  • 170 x 185 x 65 mm / 6.7 x 7.3 x 2.6 inch
  • Notes

  • Heavy duty dual-circuit coaxial switch unit designed for selecting long range or homing antennas for Rebecca Mk IIB/IIT VHF transponder navigation system. (173 - 234 MHz)

    Manual or electrical operation (24v DC).
    Operating current 650 mA. After pull-in, contacts connect a 100 ohm resistor in series with the solenoid, reducing the holding current to 170 mA.
    Handles the 300 W peak power output of the Rebecca transmitter.
    6 Pye coaxial sockets with clamps.
    Wick armature pivot lubrication.
    Removable cover plate for contact inspection and cleaning.

  • Net weight (2.2 lb = 1 kg)
  • 1.640 kg / 3 lb 9.8 oz (3.612 lb)
  • Author
  • Model page created by Bruce Taylor. See "Data change" for further contributors.

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