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RADAR IN BRITAIN : HOW RADIOLOCATION REVOLUTIONISED OFFENCE AND DEFENCE METHODS. - 15173. Picture issued 1945 shows - A "Chain Home" receiver room showing console. This apparatus includes its own Cathode Ray tube and displays tracings. A motor driven mechanism feeds paper round a bar near the trace so that pencil records of multiple raids may be made against actual echoes to assist in identification. All operational telephone lines are terminated on the console and the operators are able by means of these and other aids to transmit raid information with speed Royal Air Force
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