| Year | 1922 |
| Date | 21-Sep |
| Volume | 47 |
| Issue | 1,117 |
| Page | 281 |
| Category | Radio Engineering |
| Part | |
| Title | Reception of Continuous Waves |
| Author | Captain H. de A.Donisthorpe |
| Notes | Reaction circuits. Original beat reception circuit, simplified beat reception circuit, another reaction circuit |