| Year | 1933 |
| Date | 13-Apr |
| Volume | 68 |
| Issue | 1,666 |
| Page | 346 |
| Category | Electrical |
| Part | |
| Title | Practical Dynamo and Motor Testing. Summary |
| Author | A.H.Avery |
| Notes | Cold field and armature resistances, drop-testing armatures, testing armature connections, polarity tests, test for crossed armature connections, checking the brush positions, voltages contributed by individual coils |