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).
Blueprint showing primary voltage curves for the Wraith ignition system.
| Identifier | ExFiles\Box 168\3\ img153 | |
| Date | 5th April 1939 | |
| WRAITH IGNITION PRIMARY VOLTAGE CURVES VCH 6 ROLLS ROYCE DISTRIBUTOR 650 R.P.M ROLLS ROYCE DISTRIBUTOR 1400 R.P.M DELCO - REMY DISTRIBUTOR 650 R.P.M DELCO - REMY DISTRIBUTOR 1400 R.P.M S.G.L 5.4.39 | ||