| Description | The file contains Theatre Projects Consultants Ltd correspondence and enclosures regarding communications equipment, including obtaining licences for radio paging; supplementary quotations; speaker schedules; interest from companies who would like to supply the equipment; panels; circuits; small speaker installation by Pye Business Communications Ltd; speakers in wet ceilings; announcement points; the paging system and TV monitors; the talkback/intercom system; stage door counter; and office baffles. Correspondents include the Greater London Council (GLC); Pye Business Communications Ltd; Metropolitan Tool & Products; Tele Tape Video; the National Theatre; Mercury Electronics; Denys Lasdun & Partners; Evershed Power-Optics Ltd; Crown House Engineering Ltd; Sir Robert McAlpine & Sons Ltd; Ministry of Posts and Telecommunications; and the South Bank Theatre Board. The file includes sketches of control panels and circuits, a timetable for communications installations, the contract between Pye Business Communications and the South Bank Theatre Board, and sketch 904/SK/588 'National Theatre SM Desk Interface with Working Light Control System'. The original card folder had '904/6A (No.4) From 1/11/73 to 30/4/74' was written on the spine. It has been kept as the notes on the back could not be read. |