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 12-volt requirement for an ignition coil and ballast resistance, and requesting an expected delivery date.
| Identifier | ExFiles\Box 34\4\ Scan093 | |
| Date | 20th October 1919 | |
| X. 2048. To EFC. from E.{Mr Elliott - Chief Engineer} E1/G20/10/19. [Handwritten, crossed out] X.3129. [Handwritten] X.2048 RE IGNITION COIL AND BALLAST RESISTANCE. Referring to our memo E4/G8/10/19 concerning the above, it is of course understood that the coil is to suit 12 volts, as used on the chassis. Would you kindly let us know when we may expect to receive same. E.{Mr Elliott - Chief Engineer} | ||