| Digest Nr | Subject and Author |
 |
| 2005.11.14.05 | Rewinding Player Piano Motor for European Mains, from Walter Tenten |
| 2005.11.14.04 | Rewinding Player Piano Motor for European Mains, from Nicholas Simons |
| 2005.11.13.08 | Rewinding Player Piano Motor for European Mains, from Mark Kinsler |
| 2005.11.12.04 | Rewinding Player Piano Motor for European Mains, from Walter Tenten |
| 2001.02.14.18 | Pianocorder Vorsetzer Mains Current, from Benjamin Haass |
| 2001.02.14.17 | Pianocorder Vorsetzer Mains Current, from Tom Lear |
| 2001.02.13.14 | Pianocorder Vorsetzer Mains Current, from Bob Baker |
| 2000.07.24.08 | 50- and 60-Hz Mains Frequency Conversion, from Bill Maxim |
| 2000.07.23.13 | 50- and 60-Hz Mains Frequency Conversion, from John Spradley |
| 1997.01.13.09 | Mains Surge Protectors, from Fritz Gellerman |
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