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).
Instruction sheet with test results for a Smith 2 D.O.D. Dynamo, showing amperage at various speeds.
| Identifier | ExFiles\Box 3\5\ 05-page184 | |
| Date | 16th February 1920 | |
| RR. 238 (2M) B&S 112 4-11-18 JMP 18784 117 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: H.{Arthur M. Hanbury - Head Complaints} C. Clerk 16/2/20 H Order No. X Customer's No. -- Smith 2 D.O.D Dynamo Correctly Corrected Numerically H.C. Speed | Amperes 510 | 0 543 | 1.1 555 | 2.0 590 | 3.4 630 | 4.5 670 | 6.0 720 | 7.55 780 | 8.90 840 | 10.30 920 | 11.30 1030 | 12.00 1100 | 12.40 1180 | 12.50 1290 | 12.45 (Cont-d) Signed This Sheet must be filed on completion of the work. | ||