| Digest Nr | Subject and Author |
 |
| 2016.10.07.05 | Ampico A "Play" Switch is Unstable, from John Grant |
| 2016.10.03.03 | Ampico A "Play" Switch is Unstable, from John Grant |
| 2016.10.03.02 | Ampico A "Play" Switch is Unstable, from Jeff Davis |
| 2016.10.02.04 | Ampico A "Play" Switch is Unstable, from Bill Chapman |
| 2016.09.29.06 | Ampico A "Play" Switch is Unstable, from John Grant |
| 2016.09.29.05 | Ampico A "Play" Switch is Unstable, from D. L. Bullock |
| 2016.09.27.04 | Ampico A "Play" Switch is Unstable, from Bill Chapman |
| 2010.08.23.06 | PPCo Roll Frame Motor Speed is Unstable, from Bob Hodge |
| 2010.08.21.07 | PPCo Roll Frame Motor Speed is Unstable, from Herb Lindahl |
| 2010.08.13.09 | PPCo Roll Frame Motor Speed is Unstable, from John A. Tuttle |
| 2010.08.12.06 | PPCo Roll Frame Motor Speed is Unstable, from John A. Tuttle |
| 2010.08.11.11 | PPCo Roll Frame Motor Speed is Unstable, from Herb Lindahl |
 |