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 various suppliers regarding the production and price of a moving coil ammeter.
Identifier | ExFiles\Box 168\5\ img239 | |
Date | 23th April 1932 | |
Roy.{Sir Henry Royce} From Hs{Lord Ernest Hives - Chair}/Wst. X(-129 Hs{Lord Ernest Hives - Chair}/Wst.1/MA. 23.4.32. MOVING COIL AMMETERS. We have not yet definitely decided against these and we should be glad if you will enquire of Messrs. Ferranti Ltd., Weston Electrical Instrument Co., and the Elliott Co., whether they could produce for us should we require it a moving coil ammeter having a central zero with 0-20 amperes range each side and having an overall case dia of about 2". We should like to have also an estimate of the price of such an instrument. Hs{Lord Ernest Hives - Chair}/Wst. | ||