| Description | The file contains correspondence and enclosures, file notes and meeting notes mainly focused on the communications installation programme, with much of it relating to the delay in completion of the building programme, its impact on installation direct and sub-contracts and the demand for increased payments by Pye Business Communications Ltd. Specific topics discussed include RP90 receivers, the VHF paging system, Lower and Upper Theatre inductive loops, CCTV monitors, lighting control desk communications panel, production desk outlets, rack layouts, translator's equipment, cue light boxes and extension cables, stage management desk push buttons, rehearsal room paging points, small speakers, circuit testing, flameproof areas, stage management telephones, talkback, Upper Theatre stage management desk, C C R tracks, ring intercom loudspeakers and microphone units, additions and variations in Pye Business Communications Ltd's contract prices, major cassette player, equipment inspections, additional cost of supervision due to contract overruns, M100 flush master stations, bar bells and buzzers, switching matrix, the withdrawal of Pye Business Communications Ltd's labour over delays, additional supervisory costs, sound and communication wiring, sound control room desk, control rooms show relay speakers, U H F distribution, mains switching, radio paging system telephone coupler and time switches. Correspondents include Theatre Projects Consultants Ltd, Pye Business Communications Ltd, Denys Lasdun & Partners, Rank Strand Electric Ltd, Sir Robert McAlpine & Sons Ltd, the National Theatre, Davis Belfield and Everest, and Invo Matrix Ltd, The South Bank Theatre Board and The National Building Agency. Items include a rough sketch showing the CCTV pulse distribution jackfield, a rough sketch 'National Theatre Basement and Car Park: 4.00 Level', two rough sketches for the Lower Theatre sound control room desk push button plate and desk outlet socket plate, a list of supervision times for the communication contract and rough and more formal sketches for proposed jackfield layouts. Original card folder disposed of. '904/6A (No. 6.) National Theatre. From 1.1.75 Communications' was written on the spine. 'PBC MD. Mr. Manley' was written on inside top left. |