| Year | 1954 |
| Date | 16-Dec |
| Volume | 111 |
| Issue | 2,795 |
| Page | 704 |
| Category | In the Workshop |
| Part | |
| Title | Making a Foot Switch and a Transformer Case |
| Author | Duplex |
| Notes | The switch parts, the contacts, assembling the switch, the baseboard, a carrying case for the transformer, rubber-bodied output plug |