Peter, I've posted the APD images in my site, so I hope it will be easy to find. http://www.npl.uiuc.edu/~sknaack/MucapAnalysis/pictures/apdarray.html is the link directly to it. Other wise you can navigate from http://www.npl.uiuc.edu/~sknaack/MucapAnalysis/home.html to the pictures site, and then to and then the APD page. I will post a link in the e-log as well. Regards, Sara