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).
Small alternator for preliminary tests on an electrical speedometer.
| Identifier | ExFiles\Box 165\4\ img057 | |
| Date | 29th April 1930 | |
| X 6023 W/S. To PN.{Mr Northey} from EFC. EFC2/AD29.4.30. Y 6023. ELECTRICAL SPEEDOMETER. Thank you for your PN{Mr Northey}15/WT28.4.30, I think it would be quite useful to us to have one of the small alternators of which you speak for some preliminary tests. Particularly is this the case in that we already have a rectifier type instrument of range 0 to 25 milliamperes which was obtained in connection with ignition coil tests. EFC. | ||