Guys: Here is Chuck's page on the problematic caps (including C-553) http://classic-web.archive.org/web/20080112212428/www.r390a.com/ProbCaps.html Here is the web address for Chuck's R-390A page: http://classic-web.archive.org/web/20080212161221/http://www.r390a.com/ I hope this helps. Joe Connor