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).
Two-rate charge scheme, a modified dynamo, and the adequacy of 48-watt bulbs for night touring.
| Identifier | ExFiles\Box 62\3\ scan0107 | |
| Date | 16th January 1931 | |
| X6003 EFC. PN{Mr Northey}28/CP16.1.31. X.6016. TWO-RATE CHARGE SCHEME on 58-GN. X.6003. I am not quite clear whether the 48 coil medium output dynamo now on this car is one on which you have increased the clearence in the armature slots with a view to obtaining the larger output in this manner. In any case, if all features of the scheme fitted to this car appear to be reasonably desirable, will similar dynamos be immediately available in connection with production? We will let you know on Monday whether the 48 watt bulbs appear to us to be adequate for night touring. PN.{Mr Northey} | ||