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).
The standardization and testing of chassis ammeters.
| Identifier | ExFiles\Box 168\5\ img298 | |
| Date | 7th July 1934 | |
| 86152 Roy.{Sir Henry Royce} From Hs{Lord Ernest Hives - Chair}/Wat. Hs{Lord Ernest Hives - Chair}/Wat.2/MA.7.7.34. CHASSIS AMMETERS. Referring to Roy{Sir Henry Royce}/WS.21/P.6.7.34., we have now standardized the Weston ammeter also on the 20/25 chassis. Until therefore our tests on the Ferranti and Lucas damped ammeters are more advanced and we can make a pronouncement regarding these types, we should continue to buy all our ammeters from Messrs.Westons. If either the Lucas or the Ferranti are comparably satisfactory with the Weston at the conclusion of our tests, we shall issue the usual standardization sheet. Hs{Lord Ernest Hives - Chair}/Wat. | ||