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).
Recommendation to use a series-parallel switch as the simplest method for reducing headlight brightness.
| Identifier | ExFiles\Box 61a\1\ scan0086 | |
| Date | 17th December 1920 | |
| Contd. -2- EFC17/T7.12.20. would involve complication in the lamps, wiring and switchboard. On the whole of the three methods proposed, we consider that the series parallel switch is the simplest as such a switch can be arranged near the R.R. distribution board and the wiring would not be unreasonably complicated. At any rate this is the method we ourselves should adopt for reducing the head lights on our own car. EFC. | ||