TR3174 Eureka MKII with PSU
Eureka & Rebecca
formed a system of ground based beacons and airborne direction finding equipment
designed initially to assist the air-drop delivery of supplies to the Army
or Resistance groups in occupied Europe.
Eureka was the ground
based beacon and Rebecca the airborne station.
The ground based
beacon was a super-regenerative receiver and transmitter operating
in the frequency range 214 - 234 MHz, powered from a battery via a vibrator power supply
unit. A portable tripod mounted aerial was erected when communications was
The system was initially
designed by TRE, and manufactured by Murphy and Cossor. A number of different
versions of Eureka were designed and manufactured in both the UK and the
Details of the Rebecca Display
Unit, Indicator Unit No. 96, will be listed separately under its own type