Brush and commutator tests conducted on 20 HP dynamos.
| Identifier | ExFiles\Box 50\5\ Scan382 | |
| Date | 26th October 1925 | |
| X. 4333 EFC {E. Fowler Clarke - Electrical Engineer} /T26.10.25. BRUSH & COMMUTATOR TESTS ON 20 HP DYNAMOS. (6) 57 Segment Commutator with Le Carbone X Main and EG.3399 Control Brushes. (a) Two tests of this have been completed, see AC.26 of 30.9.24, and AC.31 of 10.11.24. (b) It is also being run on F dynamo on 6-GII. (7) 57 Segment Commutator with Le Carbone LFC2. Main and LFC3.AB8. Control Brushes. A test of this has been completed on the bench, see report AC.28 of 8.10.24. 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).