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).
Mr. Royce's instruction on the correct positioning of the ammeter within the circuit.
| Identifier | ExFiles\Box 61\2\ scan0117 | |
| Date | 27th March 1919 | |
| R.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. To EY. from EFC. c. to EY/HEQ. c. to EH EFC4/T27/3/19. X.3374. RE POSITION OF AMMETER IN CIRCUIT. Will you kindly note that Mr. Royce, in his note R6/G24/3/19 to me, has definitely said that the ammeter should be placed in the battery circuit and not in the dynamo circuit. We do not, at the moment, propose to include the Klaxon horn and the actuating magnets in the starter system on the side of the ammeter away from the battery, as these being only in intermittent use, and taking, perhaps, rather large current, will preferably not be indicated on the instrument. We are, however, looking into this matter before coming to a final decision. EFC. | ||