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The Control Room, Studios 8A & 8B and associated areas, and the Dramatic Control Rooms.
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The Eighth floor contained the main Control Room, a large studio for orchestral and
band music and a much smaller studio for debates and discussions.
The Control Room used a relay switching system to enable the complete chain of transmission
between any studio and any outgoing line to be set up in the least possible time. There
were stand-by facilities and the means of bringing them into circuit without delay should
any equipment develop a fault during transmission. Signalling devices showed the approximate
positions of any faults . There was much subsidiary equipment, including check receivers,
line testing equipment, interval signal equipment and the Greenwich Time Signal apparatus.
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In addition to the information in this section, there is a more detailed description of the
Control Room in the technical section.
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