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MMD > Archives > Authors > Douglas Heckrotte


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Digest NrSubject
2025.06.11.01 Ampico 'A' Re-Roll vs. Ampico System Off-On
2025.05.25.01 Ampico 'A' Re-Roll vs. Ampico System Off-On
2022.11.24.01 Replacement Parts for Kleernote Tracker Bar Pump
2018.03.21.02 Antique Screw Threads
2017.10.31.01 Valve Facings of DuPont Corfam Artificial Leather
2017.05.20.02 Rachmaninoff And His Ampico Recordings
2016.08.30.02 Roll Repair Tape Slitter
2016.04.14.05 Seek Ampico 65233G "Well Tempered Clavier"
2015.10.25.02 Lineco Document Repair Tape for Piano Rolls
2015.08.29.07 Ampico Air Motor Tempo Aperture Plate Drawing
2015.08.10.02 Seek Hand Punches for Piano Roll Repairs
2014.10.21.08 Disposal of Duo-Art Piano Rolls
2014.06.25.06 Shelving for An Old Piano Roll Cabinet
2014.01.05.02 Replicating an Ampico Roll Leader
2013.12.15.07 Hardwood Plywood in Large Pneumatics
2013.11.13.01 Jazz Classics Roll "Lovin' Sam"
2013.05.25.02 Player Piano Valve Design Parameters
2013.05.24.06 Building a Transparent Player Piano Action Model
2012.12.22.04 Replacement Motors for Electric Player Pianos
2012.12.11.03 Piano Rolls Are Damaged During Rewind
2012.11.08.13 Restoring a Player Piano Immersed in Salt Water
2012.02.15.04 Ampico Roll Box and Label Styles
2011.08.01.15 Ivory Piano Keys
2011.07.28.01 Unknown Ampico Roll Recutter
2011.07.22.11 Gulbransen "Fishing Pole" Tracking Mechanism
2011.06.22.05 Future of Mechanical Music
2011.06.19.03 To Listen, or Talk?
2011.05.10.03 Seek Piano Roll Label Maker Software Program
2011.05.01.04 FS: 58/65-note Pianola Push-up Player & Rolls
2011.05.01.02 Hupfeld Piano Roll Transfers
2011.04.20.03 Old-fashioned Oil & Resin Varnish
2011.04.12.03 Reproducing Piano Roll Catalogs & Rollographies
2011.04.11.02 Reproducing Piano Roll Catalogs & Rollographies
2011.04.05.05 Ampico A Music Plays Too Slow
2011.04.03.04 Ampico A Music Plays Too Slow
2011.04.01.05 Ampico A Music Plays Too Slow
2011.03.19.01 Seek Ampico Rolls & Roll Repair Supplies
2011.03.14.05 Using Epoxy & Filler to Repair Shattered Wood
2011.03.06.04 RTV Silicone Adhesive for Rebuilding a Pianola
2011.02.22.07 FS: Pianola Push-up & 58-note & 65-note Rolls
2011.02.22.06 FS: Early Ampico A Action from 5'4" Knabe
2011.02.22.02 My New Ampico Acquisition
2011.01.24.01 FS: Cecilian Rolls
2010.12.27.03 Seek Grand Piano for Ampico A Player Action
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