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).
List of electrical supply requirements for a laboratory, detailing amperage and horsepower needs.
| Identifier | ExFiles\Box 143\3\ scan0049 | |
| Date | 19th December 1939 guessed | |
| re Electrical supplies for Laboratory The following is a list of the electrical supply required for the laboratory. 200 volt, single phase, 50 cycles. Light. 9 amperes. Universal motor 10 amperes. Rig heater. 5 amperes. Transformer 5 amperes. Rectifier 2 amperes. Total 31 amperes at 200 v.{VIENNA} 200 volts, 3 phase, 50 cycles. Large generator 17 H.P. Small motor - generator 8.5 H.P. Rig A.C. Motor .25 H.P. Total 25.75 H.P. Say 100 amps. at 200 v.{VIENNA} Rm{William Robotham - Chief Engineer}/RC.{R. Childs} | ||