In a message dated 4/3/2005 3:22:45 PM Central Daylight Time, DJED1 at aol.com writes: the original Progressitron PTO (it developed a warble). There is an easy fix for that. The tiny caps (10 picofarads I think) inside the can break loose from the solder connection, just reflow it and it will be fine. Seen it on 7 different Progressitrons. Les