| Description | The file contains notes and correspondence, often enclosing quotations and provisional specifications, between Theatre Projects Consultants Ltd and a number of companies regarding production lighting, covering circuit distribution; quotations, prices, costings, budgets, designs and specifications for lighting control systems for all three stages; preliminary meetings with manufacturers to discuss emerging technologies; lanterns; dimmers; lighting slots; slide projectors; control boards; spot lights; plugs; socket outlets and fuses. Correspondents include: Strand Electric & Engineering Co Ltd; Theatre Projects Consultants Ltd; Thorn Electronics Ltd; W J Furse & Co Ltd (Furse Stage Lighting & Engineering Division); Thespak Major Ltd; Flint & Neill Ltd; Rank Strand Electric Ltd; Evershed Power-Optics Ltd; Electrosonic Ltd; Dynamic Technology Ltd; Thespak Major Ltd; Sealectro Ltd; Denys Lasdun & Partners; London Weekend Television; E M Langham chartered electrical engineer; Zeiss Ikon; Walturdaw Ltd; Projection and Display Services Ltd; Hamburger Staatesoper; Sir Robert McAlpine & Sons Ltd; CCT Theatre Lighting Ltd; Martin & Lunel; The Wholesale Fittings Co Ltd; Gill, Jennings & Every; Douglas Cornelissen (National Theatre); the National Theatre; Reyrolle Parsons Ltd; and Digital Display Equipment Ltd. The file also includes a provisional specification for the lighting control system, circuit distribution diagrams, a list of foreign lighting companies, a rough sketch of a special gallery outlet box, a photocopy of sketch 904/SK 470 'Lower Theatre Lighting Slots', a graph of dimmer curves, 5 figures showing a distributed dimmer system, a report and notes on dimmer systems, two copies of a report 'Lighting Control By Memory', sketch 904/SK/519.A 'National Theatre 5kW Dimmer Circuit', and an article on NT lighting by Frederick Bentham of Rank Strand Electric Ltd titled 'Lighting Control by Memory.' Original card folder disposed of. '904/7A (1) Production Lighting.' was written on the spine. |