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).
Comparison of coil and magneto ignition systems focusing on the capacity of the distributor lead.
| Identifier | ExFiles\Box 63\3\ scan0019 | |
| Date | 8th June 1934 guessed | |
| a coil ignition system happens to exceed that of a mag. system by, in the main, the capacity of the lead from coil to distributor. With coil and distributor close together, however, both systems will have much the same capacity, other conditions such as higher | ||