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 Scintilla dynamo regulator system.
| Identifier | ExFiles\Box 50\1\ Scan242 | |
| Date | 23th January 1923 | |
| SCINTILLA DYNAMO REGULATOR SYSTEM REGULATOR AUX. RELAY CUT-OUT 782 ω 152 ω 67 ω 37 ω 59 ω 5 4 3 X.4290 E.F.C. 23-1-23 | ||