| Year | 1923 |
| Date | 22-Nov |
| Volume | 49 |
| Issue | 1,178 |
| Page | 581 |
| Category | Radio Engineering |
| Part | 5 |
| Title | Wireless Circuits and their Development |
| Author | A.V.Ballhatchet |
| Notes | Some special circuits, a regenerative circuit, a regenerative circuit with crystal detector, the "S.T.-100" circuit, the Reinartz circuit, the Flewelling circuit, the Neutrodyne circuit |