| Year | 1914 |
| Date | 30-Jul |
| Volume | 31 |
| Issue | 692 |
| Page | 105 |
| Category | Electronic |
| Part | 3 |
| Title | Wimshursts and Wireless |
| Author | V.E.Johnson |
| Notes | How to obtain maximum output, the size of the discs, two examples of disc sectoring, compound machines, an ideal machine for experimental work |