| Year | 1926 |
| Date | 25-Mar |
| Volume | 54 |
| Issue | 1,300 |
| Page | 333 |
| Category | Electrical |
| Part | |
| Title | An Electric Soldering Iron |
| Author | A.V.Ballhatchet |
| Notes | Introduction, the principle, the bit, the heating element, assembly, components, results, further developments |