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 sheet recording resistance, temperature, and current readings for a component.
| Identifier | ExFiles\Box 69\1\ scan0295 | |
| Date | 23th December 1929 guessed | |
| -3- (6) (a) Secondary resistance after test :- 6680 ohms. Corresponding temperature :- 157 °C. Primary current at end of test :- 1.94 amperes. Ambient temperature :- 17.5 °C. (b) Secondary resistance after test :- 5500 ohms. Corresponding temperature :- 88 °C. Primary current at end of test :- 2.42 amperes. Ambient temperature :- 17 °C. Ro{C. C. Rose - Export Manager} = 4020 ohms. (7) OK Voltage 21,000. (8) Speed. Current (amperes) 200 300 400 500 1.180 600 700 1.060 900 1000 .965 1500 1600 .810. | ||