| Digest Nr | Subject and Author |
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| 2018.03.04.02 | Valve Terminology: Pneumatic Logic, from Grant Chapman, NY |
| 2007.07.13.05 | Welte Philharmonic Organ Pedal Coupler Logic, from Russ Doering |
| 2007.07.12.07 | Welte Philharmonic Organ Pedal Coupler Logic, from Jim Crank |
| 2007.07.11.07 | Welte Philharmonic Organ Pedal Coupler Logic, from Ken Clark |
| 2007.07.10.08 | Welte Philharmonic Organ Pedal Coupler Logic, from Jim Crank |
| 2003.08.07.02 | Hole-Punching Logic for Music Box Discs, from Jack Perron |
| 2003.01.14.12 | FS: Green Welte to Licensee Logic Converter, from Dean Howe |
| 2002.07.19.05 | Converting Logic Audio Data to MIDI, from Mike Ryan |
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