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).
Wiring diagram for a chassis electrical system incorporating two-rate charge switching.
| Identifier | ExFiles\Box 163\6\ img094 | |
| Date | 11th December 1930 guessed | |
| ARMATURE FUSE 1 FIELD FUSE 2 DYNAMO R.R. CHASSIS ELECTRICAL SYSTEM INCORPORATING TWO-RATE CHARGE SWITCHING CUT-OUT SHUNT SERIES + - F- F+ A B C E R 1xC | ||