| Year | 1924 |
| Date | 13-Mar |
| Volume | 50 |
| Issue | 1,194 |
| Page | 299 |
| Category | Electrical |
| Part | |
| Title | Localising Faults on D.C. Machines |
| Author | "Tester" |
| Notes | Tool for turning commutator, connections of 4-pole generator, fibre brush for taking brush volts, shaping carbon brushes |