| Year | 1952 |
| Date | 21-Feb |
| Volume | 106 |
| Issue | 2,648 |
| Page | 249 |
| Category | In The Workshop |
| Part | 109 |
| Title | Using Calor Gas |
| Author | "Duplex" |
| Notes | High and low pressure regulators, gas storage cylinders, reducing valves, piping connections, testing for leaks, apparatus, the Amal bunsen burner, for brazing, comparative tests of apparatus, equipment to be provided by the user, brazing hearths |