Graph comparing the performance of ignition coils under specific test conditions.
| Identifier | ExFiles\Box 164\5\ img368 | |
| Date | 12th July 1938 guessed | |
| COMPARISON OF IGNITION COILS. CONDITIONS OF TEST :- RUN WITH DELCO REMY .75 MAKE RATIO 12 VOL USING 2.6 OHMS 22.SW BALLAST RESISTANCE TAKEN FROM COIL 0.5 M 10 MINS PERIOD BETWEE AXIS VALUES: 5.6, 4.8, 4.0, 3.2 14, 12, 10, 8 AXIS TITLE: S. 0.5 MEGOHM LOAD | ||
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).