| Year | 1919 |
| Date | 07-Aug |
| Volume | 41 |
| Issue | 954 |
| Page | 133 |
| Category | Electronic |
| Part | 5 |
| Title | Wireless Notes and Developments |
| Author | J.Scott-Taggart |
| Notes | The Vacuum Valve. Grid Current Rectification, a simple value receiving circuit using grid current rectification effects |