| Year | 1911 |
| Date | 22-Jun |
| Volume | 24 |
| Issue | 530 |
| Page | 584 |
| Category | Electrical |
| Part | |
| Title | Making Induction Coils |
| Author | Harold C.Makepeace |
| Notes | Winding secondary sections, sections showing separating disc, condenser, contact breakers, Tesla coil, showing its construction, diagram showing connections to coil |