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).
Inquiry to Ferranti Ltd regarding the specifications of a microammeter.
| Identifier | ExFiles\Box 168\5\ img249 | |
| Date | 4th April 1933 | |
| x3497. Hs{Lord Ernest Hives - Chair}/Wst.17/KT. April 4th 1933. Messrs Ferranti Ltd, Hollinwood, Lancs. Dear Sirs, We should be pleased if you would kindly inform us what the millivolts per division are for the Ferranti 0-500 microammeter 2 1/2 inch moving coil instrument. Also what is the percentage accuracy. Yours faithfully, FOR ROLLS ROYCE LIMITED. | ||