| Year | 1922 |
| Date | 07-Sep |
| Volume | 47 |
| Issue | 1,115 |
| Page | 234 |
| Category | Radio Engineering |
| Part | |
| Title | Reception of Continuous Waves |
| Author | Captain H. de A.Donisthorpe |
| Notes | Various types of wireless waves, the Tikker (circuit), the process of hetrodyne, the tone wheel, the hetrodyne |