| Year | 2004 |
| Date | 26-Nov |
| Volume | 193 |
| Issue | 4,235 |
| Page | 612 |
| Category | Electrical |
| Part | 1 |
| Title | Electro-Pneumatic Contactors |
| Author | Colin Beckwith |
| Notes | A major new series on electric traction. An accelerating relay, electric traction techniques, remote switching, basic equipment layout, description of locomotive, my locomotive |