| Year | 1944 |
| Date | 09-Nov |
| Volume | 91 |
| Issue | 2,270 |
| Page | 451 |
| Category | Internal Combustion |
| Part | 2 |
| Title | Ignition Equipment. Design and Construction. A comprehensive review (continued) |
| Author | Edgar T.Westbury |
| Notes | The "fat" spark, a two-point spark gap with micrometer adjustment, arrangement of core and windings in orthodox "inside primary" ignition coil |