| Year | 1934 |
| Date | 08-Feb |
| Volume | 70 |
| Issue | 1,709 |
| Page | 131 |
| Category | Electrical |
| Part | |
| Title | How to Utilise Old Polar-Inductor Magnetos |
| Author | H.R.Langman |
| Notes | Armature, description of polar-inductor magneto armature, magneto armature converted to induction coil, how to utilise armature element as induction coil, general arrangement of induction coil, interrupter mechanism, soft iron core with armature coil, converting magneto to an inductor alternator, attachment of handle to gearwheel, method of using keeper, important |