I'll wager that there are few if any equipments which have been named the same since receivers and transmitters joined the Royal Navy.  This file is the story of a WW1 W/T Receiver, but in the early 1950's, when the missile 'SEASLUG' was first commissioned into the County Class Destroyers, the controlling transmitter/receiver, apart from the 901 Radar, was an outfit called "MBA" which is shown on this site under the page heading of "MISCELLANEOUS".

See the MB File next door for instructions on how to convert meters to frequency and the LS system.

WT RECEIVING SET MODEL MBA.pdf