List of specifications and changes for various vehicle electrical components.
| Identifier | ExFiles\Box 153\3\ scan0077 | |
| Date | 6th June 1940 | |
| -7- Rm. {William Robotham - Chief Engineer} 3/JH.6.6.40. Ignition Distributor. Section 8120. No change. Coil. Section 8140. H.R. coil in place of Lucas. Ballast resistance. Section 8150. Ballast resistance fitted in conjunction with H.R. coil. Switch Box. Section 8160. No change. Distribution board. Section 8170. No change. Stop & Rev. lamp switches. Section 8 30. No change. Headlamps. Section 8 50. Scheme required for mounting lamps on cat walk. Regulator & Cutout. Section 8290. No change. Petrol Reserve Tap. Section 8800. Not required. Rm. {William Robotham - Chief Engineer} | ||
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).