| Digest Nr | Subject and Author |
|---|
 |
| 2023.04.23.02 | FS: Aluminum Rotary Vacuum Pump, from Gary Goldsmith |
| 2020.11.06.01 | Seek Rotary Box Pump for Upright Player Piano, from Piotr Barcz |
| 2018.02.12.03 | Seek Drawings of Welte Rotary Wind Motor, from Andrew Leach |
| 2017.11.30.06 | Speed Of Rotary Vacuum Pumps, from Scotty Greene |
| 2017.11.21.08 | Speed Of Rotary Vacuum Pumps, from Wayne Finger |
| 2017.01.14.04 | Seek Mills AC/DC Rotary Converter Repair, from Jim Quashnock |
| 2016.05.16.03 | Seek "Red" Welte Rotary Wind Motor, from Ken Caulkins |
| 2016.05.08.06 | Source of Rotary Pump Bearings, from Thomas Binnall |
| 2016.05.08.05 | Rebuilding Duo-Art Rotary Pump, from Paddy Handscombe |
| 2016.05.08.03 | Rotary Pump Makes the Grand Piano Shimmy, from Wayne Finger |
| 2016.05.06.06 | Source of Rotary Pump Bearings, from Don Teach |
| 2016.05.06.05 | Source of Rotary Pump Bearings, from Spencer Chase |
| 2016.05.06.04 | Source of Rotary Pump Bearings, from Roger Wiegand |
| 2016.05.05.03 | Source of Duo-Art Rotary Pump Bearings, from Pat DeWitt |
| 2016.05.05.02 | Source of Rotary Pump Bearings, from Don Teach |
| 2016.05.04.10 | Rotary Pump Makes the Grand Piano Shimmy, from David Dewey |
| 2016.05.04.09 | Rotary Pump Makes the Grand Piano Shimmy, from Jeffrey R. Wood |
| 2016.05.04.08 | Rotary Pump Makes the Grand Piano Shimmy, from John Grant |
| 2016.05.04.07 | Rotary Pump Makes the Grand Piano Shimmy, from Leonardo Forti |
| 2016.05.04.06 | Rotary Pump Makes the Grand Piano Shimmy, from John A. Tuttle |
| 2016.05.04.05 | Rotary Pump Makes the Grand Piano Shimmy, from Steve Bentley |
| 2016.05.04.04 | Unusual Inside-Out Rotary Player Piano Pump, from Gordon Stelter |
| 2016.05.04.03 | Seek Source of Rotary Pump Bearings, from Jeff Mason |
| 2016.05.03.05 | Rotary Pump Makes the Grand Piano Shimmy, from Bob Taylor |
| 2016.05.03.04 | Rotary Pump Makes the Grand Piano Shimmy, from Dave Saul |
| 2016.05.03.03 | Rotary Pump Makes the Grand Piano Shimmy, from John Grant |
| 2016.05.03.02 | Unusual Inside-Out Rotary Player Piano Pump, from David Dewey |
| 2016.05.02.10 | Rotary Pump Makes the Grand Piano Shimmy, from Craig Smith |
| 2016.05.02.09 | Rotary Pump Makes the Grand Piano Shimmy, from Eliyahu Shahar |
| 2016.05.02.08 | Rotary Pump Makes the Grand Piano Shimmy, from Vince Wukmir |
| 2016.05.02.07 | Unusual Inside-Out Rotary Player Piano Pump, from Gordon Stelter |
| 2016.05.01.04 | Unusual Inside-Out Rotary Player Piano Pump, from David Dewey |
| 2016.04.30.05 | Rotary Pump Makes the Grand Piano Shimmy, from Adam Aceto |
| 2016.04.30.04 | Rotary Pump Makes the Grand Piano Shimmy, from Jeff Davis |
| 2016.04.30.03 | Rotary Pump Makes the Grand Piano Shimmy, from Jon Page |
| 2016.04.29.04 | Rotary Pump Makes the Grand Piano Shimmy, from Mike Clemens |
| 2016.04.29.03 | Rotary Pump Makes the Grand Piano Shimmy, from David Dewey |
| 2016.04.28.04 | Rotary Pump Makes the Grand Piano Shimmy, from Warren Officer |
| 2016.04.27.07 | Paper Label on Duo-Art Rotary Pump, from John Grant |
| 2016.04.25.05 | Paper Label on Duo-Art Rotary Pump, from John Grant |
| 2016.01.23.02 | Mills Rotary Converter 2.5 Ampere, from Richard Smoot |
| 2016.01.22.06 | Seek Art Echo Rotary Pump Spill Valve, from John Weismantel |
| 2015.05.30.04 | Unknown Rotary Vacuum Pump, from Vince Larusso |
| 2015.05.03.06 | Unknown Rotary Vacuum Pump Is Early Ampico, from Paddy Handscombe |
| 2015.05.03.05 | Unknown Rotary Vacuum Pump Is Early Ampico, from John A. Tuttle |
| 2015.05.02.05 | Unknown Rotary Vacuum Pump, from Mike Walter |
| 2015.05.02.04 | Unknown Rotary Vacuum Pump, from Alan Mueller |
| 2015.05.02.03 | Unknown Rotary Vacuum Pump, from Bob Taylor |
| 2015.05.01.04 | Unknown Rotary Vacuum Pump, from Bruce Clark |
| 2015.04.29.04 | Unknown Rotary Vacuum Pump, from John A. Tuttle |
| 2015.04.27.04 | Unknown Rotary Vacuum Pump, from John Wolbach |
| 2015.04.27.03 | Unknown Rotary Vacuum Pump, from Bruce Clark |
| 2015.04.26.02 | Unknown Rotary Vacuum Pump, from Steve Robbins |
| 2014.01.11.04 | Broken Part in Odd Rotary Vacuum Pump, from John A. Tuttle |
| 2013.10.16.06 | Mills AC/DC Rotary Converter for 32 Volts, from Mark Kinsler |
| 2013.10.16.05 | Mills AC/DC Rotary Converter for 32 Volts, from Timothy L'Amoureux |
| 2013.10.16.04 | Mills AC/DC Rotary Converter for 32 Volts, from Lee Rothrock |
| 2013.10.15.05 | Mills AC/DC Rotary Converter for 32 Volts, from Ralph Schultz |
| 2013.06.11.05 | Rebuilding Rotary Box Pump Valves, from John Grant |
| 2013.05.01.02 | Rebuilding Rotary Box Pump Valves, from Paul Rumpf |
| 2013.04.29.04 | Rebuilding Early Ampico A Rotary Pump Valves, from Roger W. Kling |
| 2012.11.09.03 | Seek Knob for Ampico Rotary Switch, from Eliyahu Shahar |
| 2012.06.21.06 | Disassembling a Duo-Art Rotary Pump, from Ralph Nielsen |
| 2012.06.21.05 | Disassembling a Duo-Art Rotary Pump, from Bill Chapman |
| 2012.06.19.01 | Disassembling a Duo-Art Rotary Pump, from David Theis |
| 2011.01.30.03 | Seek Welte Rotary Airmotors for "K" Style Photoplayer, from Don Paynter |
| 2010.08.12.04 | Lubricating Welte Rotary Wind Motor, from Skip Downing |
| 2010.02.27.06 | Rotary Pump Problems in Welte Licensee Upright, from Jonathan Holmes |
| 2009.07.30.07 | Seek Repair of Mills Violano Rotary Converter, from Howard Wyman |
| 2009.01.24.08 | Cable Euphona Recordo With Rotary Pump, from Michael La |
| 2007.05.07.03 | Seek Brass 3-port Rotary Valve, from Jeff Bridges |
| 2004.12.22.05 | Seek Duo-Art Rotary Box Pump & Motor, from Bruce Grimes |
| 2004.08.18.07 | Rebuilding Welte Licensee Rotary Box Pump, from John Johns |
| 2004.08.04.02 | Rebuilding Welte Licensee Rotary Box Pump, from Jonathan Holmes |
| 2003.01.15.10 | Mills Violano AC/DC Rotary Converter Patents, from Robbie Rhodes |
| 2003.01.14.10 | Mills Violano AC/DC Rotary Converter, from Will Herzog |
| 2003.01.14.09 | Mills Violano AC/DC Rotary Converter, from Craig Smith |
| 2003.01.14.08 | Mills Violano AC/DC Rotary Converter, from Dick Hack |
| 2003.01.13.09 | Mills Violano AC/DC Rotary Converter, from Hal Davis |
| 2003.01.13.08 | Mills Violano AC/DC Rotary Converter, from Craig Smith |
| 2003.01.13.07 | Mills Violano AC/DC Rotary Converter, from Mark Kinsler |
| 2003.01.12.04 | Mills Violano AC/DC Rotary Converter, from Craig Gockel |
| 2001.12.20.07 | Rotary Cutter for Music Roll Repairing, from John J. Breen |
| 2001.06.14.07 | Seek Rotary Pump for Duo-Art in Australia, from Grahame Code |
| 2001.05.07.08 | Leather vs. Rubberized Cloth for Rotary Pumps, from Bruce Clark |
| 2001.05.07.06 | Leather for Rotary Vacuum Pumps, from Mark Reinhart |
| 2000.05.19.13 | FS: Welte Rotary Bellows Pump, from Jon Page |
| 2000.05.19.12 | Rebuilding Ampico Rotary Bellows Pump, from Tim Mattice |
| 2000.05.18.07 | Making a Rotary Bellows Pump, from Miguel de Mattos |
| 1999.11.29.15 | Rotary Cutters for Leather and Felt, from D. L. Bullock |
| 1999.05.26.08 | Seek Rotary Pump Strap Material, from Stephen Kent Goodman |
| 1998.10.19.14 | Pressing Leather and Cloth With Rotary Ironer, from Bruce Clark |
| 1998.06.24.16 | FS: Rotary Pump and Motor, from Stephen Kent Goodman |
| 1998.06.15.20 | FS: Rotary Pump & Motor, More, from Stephen Kent Goodman |
| 1998.06.10.25 | FS: Snare Drums, Rotary Pump and Motor, More, from Stephen Kent Goodman |
| 1998.02.04.22 | Arch Punches & Rotary Punch, from John A. Tuttle |
| 1998.01.31.18 | Rebuilding the AMPICO Rotary Pump (Video), from John A. Tuttle |
| 1995.12.12.09 | Rebuild Duo-Art Rotary Pump Motor?, from Ed Chaban |
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