From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Parts list for a trial set of a dimmer switch for instrument lights.
| Identifier | ExFiles\Box 168a\1\ img050 | |
| Date | 5th October 1936 | |
| 6135 c. Hs{Lord Ernest Hives - Chair}/Wst. BY/ED.{J. L. Edwards}1/B.5.10.36. Dimmer Switch for Instrument Lights - RR.Sch.991. (Instrument Board - Section 7190). We hand you herewith blue prints of details made from the above scheme. Will you please have one set put in hand for trial. D.75687 - Support Plate - Instruments. (Standard piece with 2 extra holes) 1 off. D.75688 - Base. 1 off. D.75689 - Operating Handle. 1 off. D.75690 - Flange. 1 off. D.75691 - Operating Spindle. 1 off. D.75692 - Pressure Arm. 1 off. D.75693 - Contact Arm. 1 off. D.75694 - Base Plate (Bottom). 1 off. D.75695 - Base Plate (Centre). 1 off. D.75696 - Base Plate (Top). 1 off. D.75697 - Washer. 1 off. D.75698 - Rivet. 1 off. D.75699 - Screw. 1 off. D.75700 - Terminal. 1 off. D.75701 - Terminal. 1 off. D.75702 - Rivet. 2 off. D.75703 - Bush. 1 off. D.75704 - Eyelet. 1 off. D.75705 - Winding Tube. 1 off. D.75706 - Bush. 2 off. D.75707 - Bush. 1 off. D.75708 - Connector. 1 off. D.75709 - Spacing Washer. 2 off. D.75717 - Distn.Bd.{Mr Berend} to Dimmer Switch Cable. 1 off. D.75718 - Insulating Tube. 1 off. 7½ Ft. - 24 SWG. .022 dia. Dull Ray Resistance Wire. (Cont'd) | ||