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).
Diagram illustrating the workings of The Smith Constant Current Dynamo.
| Identifier | ExFiles\Box 3\5\ 05-page175 | |
| Date | 8th March 1920 guessed | |
| THE SMITH CONSTANT CURRENT DYNAMO. S' R' B B LINE + LINE - A R S A' FIG. 1. Page 2 | ||