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).
Confirming the condenser contact spring material has been changed to Silicon Bronze as standard.
| Identifier | ExFiles\Box 34\1\ Scan123 | |
| Date | 20th October 1919 | |
| To E.{Mr Elliott - Chief Engineer} from EFC. c. to CJ. X.2512. EFC2/T20.10.19. X.3129. X.2512. - RE CONDENSER CONTACT SPRINGS. In answer to your E4/G16.10.19. the condenser contact spring in Silicon Bronze has now been made standard on all production chassis. The one on 49-GB is one of the earlier one made in steel in the Experimental Dept. EFC. | ||