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 purchase of an ampere-hour meter for the chassis electrical laboratory for battery life tests.
| Identifier | ExFiles\Box 164\3\ img235 | |
| Date | 22th September 1938 | |
| To EJJ. 6021. Rm {William Robotham - Chief Engineer} /RC. {R. Childs} 3/JH.22.9.38. re Battery Life Tests. Will you please obtain for the chassis electrical laboratory, from British Sangamo Co.Ltd. Cambridge Arterial Road, Enfield, Middx. - 1 model N.F. 10 ampere battery pattern ampere hour meter, fitted with dial scaled up to 0-100 ampere hours, red empty hand set at 63 ampere hours, quick make contact located at fully charged position. This meter is listed at £6.12.0. Rm {William Robotham - Chief Engineer} /RC. {R. Childs} | ||