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).
Graph showing the volt-ampere characteristics of a Delco-Remy ballast resistance.
| Identifier | ExFiles\Box 168a\5\ img015 | |
| Date | 4th November 1925 | |
| S.K. 84 VOLT-AMPERE CHARACTERISTICS OF DELCO-REMY BALLAST RESISTANCE. AMPERES VOLTS 0, .5, 1.0, 1.5, 2.0 0, 2, 4, 6, 8, 10, 12, 14 H.E.W. 4-11-25 | ||