904/6B Telephones

  • This material is held at
  • Reference
      GB 2080 TPC/1/29/1
  • Dates of Creation
      05 June 1970-31 December 1973
  • Physical Description
      6 folders

Scope and Content

The file contains correspondence and enclosures, brochures, file notes and schedules mainly relating to the installation of a telephone system and location of telephones, covering costs; types of exchange and switchboard equipment; requirements for different types of line; maintenance; possible telephone systems - PABX, PAB and LX20/100 - as well as their suppliers, with a discussion of their advantages and disadvantages; lists of existing drawings relevant to phone equipment locations; traffic data; calculations of the number of telephones needed, acceptance and refusal of quotations, a paging system, accommodation requirements for PABX installations, hiring of handsets from the Post Office, the selection and installation of UH900 (PABX) system, revision suggestions from the National Theatre and racking equipment. Correspondents include Theatre Projects Consultants Ltd, Denys Lasdun & Partners, Pye Business Communications Ltd, Standard Telephones and Cables Ltd, Flint & Neill Ltd, The National Theatre, The South Bank Theatre Board, Post Office (South Central Telephone Area), Telephone Rentals Ltd, and The Reliance Telephone Company and Flint & Neill Ltd. Items of note include two leaflets from the post office showing telephone equipment 'Private Manual Branch Exchange PMBX 3+12' and 'Key and Lamp units'; reduced-size copies of Denys Lasdun & Partners drawings with locations / layout for telephones superimposed on top - numbers 552/01/3008 issue Q 'National Theatre Upper Theatre & Offices Group Grids L-Q Plan at Level 49.00',552/01/300[9] issue N 'National Theatre Upper Theatre and Offices Group Grids E-L Plan at Level 49.00', 552/01/3010 issue Q 'Upper Theatre & Offices Group Grids L-Q Plan at Level 59.25' and 552/01/3011 issue R 'National Theatre Upper Theatre & Offices Grids E-L Plan at Level 59.25'; drawing number 8213 190 1296 'Telephone Equipment Room National Theatre' and an annotated partial copy; a drawing 'Fig. 13 UH System Operator's Console'; 'South Bank Theatre - Telephone Installation' a history of events written for the South Bank board; sketch number 904/SK 431 'Key and Lamp Units in Booking Services Office' and two related rough sketches; three copies of schedule 904/SC14 'National Theatre: Telephones Installation for Booking Services, Office and Ancillary Areas'; a Post Office diagram BDE 15/72 showing alternative arrangements for lights and bells; Theatre Projects Consultants Ltd sketch 904/SK 493 'App. Room Relays'; a full-sized sketch of a telephone; sketch number DEM 4/73 'National Theatre Announcement Point Panels'; three copies of schedule 904/SC.17 'National Theatre Telephone Schedule', sketch number 904/SK/563 'National Theatre: Booking Services Office Telephone Equipment Details'. Original card folder kept for reference as there are notes inside.

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