| Year | 1955 |
| Date | 01-Dec |
| Volume | 113 |
| Issue | 2,845 |
| Page | 836 |
| Category | Domestic |
| Part | |
| Title | Two-speed turntable |
| Author | D.May |
| Notes | Alteration for long-playing records. Flutter in the speaker, frightening experience! Condenser specification, mechanical details, pulley ratios, further applications, layout of turntable and gearing wheels |