| Year | 1933 |
| Date | 08-Jun |
| Volume | 68 |
| Issue | 1,674 |
| Page | 541 |
| Category | Electrical |
| Part | |
| Title | Practical Dynamo and Motor Testing. General and Special Faults. Tests on New and Old Machines. A General Survey of Mechanical Faults |
| Author | A.H.Avery |
| Notes | Insulation resistance, preparing for insulation tests, using the megger, locating weak places, rectifying a low i.r., temperature effects on i.r., wet varnish and i.r. |