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).
Requesting the procurement of a micro-ammeter and a wire-wound resistance for a sparking plug test apparatus.
| Identifier | ExFiles\Box 167\2\ img137 | |
| Date | 6th July 1938 | |
| To EJJ. 6103- Rm{William Robotham - Chief Engineer}/RC.{R. Childs}8/JH.6.7.38. re Sparking Plug Test Apparatus. Will you please obtain for use on the above apparatus. 1 micro-ammeter: scale 0-200, 2 1/2" dial, flush mounting. 1 Feranti 50,000Ω wire wound resistance complete with holder. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} | ||