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).
Test report on a dynamo, noting advisability of increased tension on brush springs.
| Identifier | ExFiles\Box 50\5\ Scan020 | |
| Date | 8th February 1922 guessed | |
| -2- Contd. Our test of one dynamo has indicated the advisability of slightly more tension on the brush springs. The dynamo shews promise of readily complying with the output curve and specified temperature limits. EFC. | ||