| Year | 1930 |
| Date | 12-Jun |
| Volume | 62 |
| Issue | 1,518 |
| Page | 564 |
| Category | Electronic |
| Part | |
| Title | Some Comments on Pick-Ups and Gramophone Records |
| Author | |
| Notes | Tone arms in plan: bent and straight, showing angle of incidence of the needle at extreme limits of record, front and side elevation of "pick-up" mounted on a trolley |