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 the Wraith model's instrument illumination, including required components and wiring.
| Identifier | ExFiles\Box 168a\1\ img108 | |
| Date | 1st July 1938 | |
| 6135 To Mrs. [REDACTED] of DI. [REDACTED] c. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} [REDACTED] BY/RD.1/B.1.7.38. WRAITH : INSTRUMENT ILLUMINATION. D.CD.751 - Dimmer and Wiring. D.CL.756 - Instrument Patch with 2 1/2 volt Bulbs. Will you please put in hand one set of parts to the above schemes, for which blueprints of the special pieces are attached herewith, as follows :- DW.721 - Terminal. 7 off. DW.722 - Contact Spindle. 7 off. DW.723 - Guide Bush. 7 off. DW.724 - Distance Piece. 7 off. DW.725 - Insulating Washer. 7 off. DW.726 - Cable Eye. 7 off. DW.727 - Base. 7 off. DW.728 - Casing. 7 off. DW.730 - Connector. 1 off. DW.731 - Connector. 1 off. DW.732 - Connector. 2 off. DW.733 - Connector. 7 off. DW.729 - Arrangement of Resistance. DW.734 - Assembly of Resistance Winding. E.74042 - Spring. 7 off. * E.54795 - Bulb Holder. 7 off. * On production. In addition to the above parts, we also require :- 9' 6" of 22 SWG. (.028 dia.) "Dullray" Enamel Resistance Wire. (.030 dia. over Enamel) Weight - 2 1/2 lbs. per 100 chassis. 86' of 32 SWG. (.0108 dia.) S.C.C. No.2 Nickel Chrome Resistance Wire. (London Electric Wire Co.,) (.016 dia. over Insulation). Wt. - 3 lbs. per 100 chassis. | ||