| Digest Nr | Subject and Author |
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| 2015.11.28.01 | Safely Reducing Tension on Music Box Spring, from Anthony Ciuffini |
| 2010.07.08.07 | Reducing Turbine Suction Pump Noise, from Spencer Chase |
| 2010.07.08.06 | Reducing Turbine Suction Pump Noise, from Alan Wallace |
| 2010.07.07.05 | Reducing Turbine Suction Pump Noise, from Eric Bergstrom |
| 2010.07.06.04 | Reducing Turbine Suction Pump Noise, from Spencer Chase |
| 2010.07.05.06 | Reducing Turbine Suction Pump Noise, from John Taber |
| 2010.07.05.05 | Reducing Turbine Suction Pump Noise, from John A. Tuttle |
| 2010.07.04.02 | Reducing Turbine Suction Pump Noise, from Jon Page |
| 2010.07.03.06 | Reducing Turbine Suction Pump Noise, from Matthew Parvash |
| 2010.03.15.02 | Reducing Pump Motor Vibration, from Jeffrey R. Wood |
| 2010.03.14.04 | Reducing Pump Motor Vibration, from Randy Hammond |
| 2009.05.02.04 | Making Brass Reducing Nipples, from Spencer Chase |
| 2009.04.26.07 | Reducing Nipples, from Pat DeWitt |
| 2009.04.26.06 | Reducing Nipples, from John Ross |
| 2009.04.26.05 | Reducing Nipples, from Eliyahu Shahar |
| 2009.04.25.02 | Need 300 Reducing Nipples, PPCo #361, from Duaine Hechler |
| 2009.03.19.05 | Reducing Turbine Suction Pump Noise, from Will Herzog |
| 2009.03.19.04 | Reducing Turbine Suction Pump Noise, from Michael Woolf |
| 2009.03.19.03 | Reducing Turbine Suction Pump Noise, from Eliyahu Shahar |
| 2009.03.18.06 | Reducing Turbine Suction Pump Noise, from Dick Merchant |
| 2004.05.09.03 | Reducing Blower Motor Speed, from Mark Kinsler |
| 2004.05.08.03 | Reducing Blower Motor Speed, from Tom Gregory |
| 2002.02.05.07 | Reducing Motor Noise, from John Rhodes |
| 2002.02.04.06 | Reducing Motor Noise, from Brian Smith |
| 2002.02.03.04 | Reducing Motor Noise, from Jurgen Goering |
| 2000.01.17.11 | Reducing Turbine Noise in Dynavoice Keytop Player, from Tom Lear |
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