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).
Letter discussing the operational conditions of a dynamo when run with the battery disconnected.
| Identifier | ExFiles\Box 61\2\ scan0462 | |
| Date | 10th December 1920 | |
| EFC2/T. -2- Contd. in ordinary working conditions and yet should be certain of failing in abnormal conditions arising, should an attempt be made to run the dynamo with the battery disconnected. Yours faithfully, R.R. 255A (100 T) S.H. 798. 10-12-20 © 2947 | ||