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).
Confirming a change in resistance for the three-rate charge system on the 20/25 HP Chassis.
| Identifier | ExFiles\Box 163\6\ img264 | |
| Date | 31th January 1933 | |
| WST Hs{Lord Ernest Hives - Chair}/Wst. c-E.{Mr Elliott - Chief Engineer} x6016. BY/RD2/W.31.1.33. Introduction of Three-Rate Charge on 20/25 H.P. Chassis. This is to confirm our conversation that we should reduce the amount of resistance D.73538 from 23w to 15w, to provide more output in the winter charge position. This change brings the output similar to the two-rate charge system in its recently revised form to prevent under-charging. Will you please let us have, as soon as possible, an output curve with this amount of resistance in the circuit. BY/RD. | ||