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).
Expressing anxiety over the reliability of a single spark non-trembler ignition coil scheme.
| Identifier | ExFiles\Box 34\1\ Scan041 | |
| Date | 14th January 1919 | |
| X.2512. Extract from EY10/P14.1.19. X 3129 CHASSIS - RE IGNITION COILS. X 562 X 1604 X 2512 I am most anxious if there is a slight doubt as to the reliability of the single spark non-trembler scheme to at once proceed with a trembler coil similar to the standard except it will be of smaller dimensions with modified brake and also have the two sets of condensers as specified by Mr. Royce. | ||