| Year | 2013 |
| Date | 26-Jul |
| Volume | 211 |
| Issue | 4,461 |
| Page | 166 |
| Category | Electronic |
| Part | |
| Title | Home Brew Digital Read Out |
| Author | Duncan Webster and Paul Middlehurst |
| Notes | Co-operatively create a useful device. Rotary vs linear encoders, mounting the encoder, the electronics, other uses, references |