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).
Covering order for electronic components.
| Identifier | ExFiles\Box 143\3\ scan0233 | |
| Date | 1st May 1940 | |
| 1204 ROY.{Sir Henry Royce} from Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}1/JMS.1.5.40. Will you please send a covering order to: The Arcade Wireless Stores, Strand Arcade, Derby. for: 2 Cossor Rectifying valves, type S.U.2150. (4 pin: 2 volt) 1 Elliot Microammeter. B.S.1. Standard Range 0-200. 1. 5,000 O.H.M. Non-inductive resistance. c/n.52480. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} | ||