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 results for a shunt coil, detailing voltage, amperage, and wattage at various operational states.
| Identifier | ExFiles\Box 48\3\ Scan154 | |
| Date | 24th January 1919 | |
| RR 300 (120B) (SF 349 24-1-19) MP 200552 91497 ROLLS-ROYCE LIMITED. INSTRUCTIONS. II 19 To Order No. Customer's No. F.C. 168. Re Cold 18°C. Volts & amperes on Shunt coil to operate 12.5 V. {VIENNA} .195 amp. 64.1W After operation 12.5 Volts. .105 amp. 119.0 W. Ohms cut in by auxiliary Contact- 54.9 W. Volts & amps. on Shunt coil to deoperate 12.3 Volts .098 amp. 125.5 W After deoperation. 12.3 Volts .195 amp. 63.7W Signed (Cont d. {John DeLooze - Company Secretary} ) This Sheet must be filed on completion of the work. | ||