The sparking characteristics of a new ballast resistance compared to the standard arrangement.
| Identifier | ExFiles\Box 54\5\ Scan156 | |
| Date | 14th July 1921 | |
| Contd. -2- EFC {E. Fowler Clarke - Electrical Engineer} 4/T14.7.21. current with the new ballast resistance is approximately the same as before, the sparking characteristics are similar and the amount of sparking at the contact points is not more than in the case of the standard arrangement. [Inverted Stamp] WAT CROXLEY EFC. {E. Fowler Clarke - Electrical Engineer} | ||
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).