| Year | 1995 |
| Date | 21-Apr |
| Volume | 174 |
| Issue | 3,991 |
| Page | 484 |
| Category | Workshop Electronics |
| Part | 4 |
| Title | Tachometer. A Three-Range, Hand-Held Unit |
| Author | Alan Bourne and Gordon Read |
| Notes | Corrections, final details, wiring up, shaft adaptors, operation, resistor colour code, conclusion, meter scale modification |