| Year | 1923 |
| Date | 20-Dec |
| Volume | 49 |
| Issue | 1,182 |
| Page | 695 |
| Category | Radio Engineering |
| Part | |
| Title | A Compact Crystal Receiving Set |
| Author | A.J.B. |
| Notes | The variometer, in position, winding the stator and rotor, diagram of circuit, assembling the variometer, method of widing stator, ebonite panel, marking out, crystal detector, connecting up, wooden casing, tuning-in |