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).
Side lamp over-voltage protection and a dynamo scheme for the 20/25 chassis.
| Identifier | ExFiles\Box 163\6\ img167 | |
| Date | 8th June 1932 | |
| -2- He/Wst.4/KT.8.6.32. cont'd (b) The side lamps are protected against over voltage because the full charge only comes on in the headlamp position. Unless we adopt a similar scheme as this on 20/25 chassis with a 40/50 dynamo fitted we shall ruin the batteries during summer running. He/Wst. | ||