| Digest Nr | Subject and Author |
|---|
 |
| 2017.12.29.03 | Duo-Art Expression Unit Worm Gear & Shaft, from John Grant |
| 2017.12.26.03 | Seek Duo-Art Expression Unit Worm Gear & Shaft, from Mark Washek |
| 2011.02.06.01 | Thorens AD30 Worm Gear Adjustment, from Chris Kocsis |
| 2002.05.30.04 | Wurlitzer Worm Drive Crank; Dip Ring Lubrication, from Alan Erb |
| 2002.03.21.08 | Wood Worm In a Player Piano, from Mark Williamson |
| 2000.07.27.15 | Western Electric Worm Gear Drive Turntable, from Richard Simonton |
| 1999.04.05.09 | Seek Ampico "B" Fibre Worm Gear, from Bill Boulton |
|
