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).
Description of the car's electrical system, dynamo charging indicators, and fuse arrangements.
| Identifier | WestWitteringFiles\J\December1922\ Scan93 | |
| Date | 20th December 1922 | |
| *Contd. -4- EFC1/T20.12.22. If therefore the car is running and the red lamp is lighted, this indicates that for some reason the dynamo is not charging. When the car is stationary the lamp is lighted, unless or until the switchbox is locked. There is a main fuse provided between dynamo positive supply and the battery positive, which also acts as a distributing fuse for the starter motor relay circuit when the dynamo is not running. There is a distributing fuse for the side, tail, inspection and body lighting portion of the switching and, lastly, separate head lamp fuses, one for each lamp, are independently provided. These units will be brought by Hs.{Lord Ernest Hives - Chair} to show to R.{Sir Henry Royce} on his next visit to W.W. Further particulars will be given in a later report. EFC. | ||