Here they are:
http://rudys.typepad.com/files/qex-grou ... part-1.pdf
http://rudys.typepad.com/files/qex-grou ... part-2.pdf
http://rudys.typepad.com/files/qex-grou ... part-3.pdf
http://rudys.typepad.com/files/qex-grou ... part-4.pdf
http://rudys.typepad.com/files/qex-grou ... part-5.pdf
http://rudys.typepad.com/files/qex-grou ... part-6.pdf
http://rudys.typepad.com/files/qex-grou ... part-7.pdf
The ARRL has kindly given me permission to post .pdf files of these seven articles.
A summary of these articles was published in QST for March 2010.
Rudy Severns N6LF