<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
<TITLE>Message</TITLE>
<META content="MSHTML 6.00.6000.16481" name=GENERATOR></HEAD>
<BODY><FONT face=Arial size=2><SPAN class=796030316-27072007>
<DIV><FONT face=Arial size=2><SPAN class=796232910-27072007>Hi
All,</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=796232910-27072007></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=796232910-27072007>NOT related to ALEX
Call for comment or any shielding thereof........</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=796232910-27072007></SPAN></FONT> </DIV>
<DIV><SPAN class=796232910-27072007>Just interesting to see and maybe learn
something.......</SPAN></DIV>
<DIV><SPAN class=796232910-27072007></SPAN> </DIV>
<DIV><SPAN class=796232910-27072007></SPAN>More interesting
reading.....</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2><A
href="http://www.fotofab.com/dg_shielding.htm">http://www.fotofab.com/dg_shielding.htm</A></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><SPAN class=796030316-27072007>............</SPAN>The type of metal that
you specify may have an impact on a shield's performance. In general, shielding
against frequencies of 15 MHz or lower is a bulk material effect, and can best
be served by employing a ferromagnetic metal such as steel<SPAN
class=796030316-27072007>.......</SPAN></DIV>
<DIV><SPAN class=796030316-27072007></SPAN> </DIV>
<DIV><SPAN class=796030316-27072007><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=796030316-27072007><FONT face=Arial size=2>73
's,</FONT></SPAN></DIV>
<DIV><SPAN class=796030316-27072007><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=796030316-27072007><FONT face=Arial
size=2>Henry.</FONT></SPAN></DIV></BODY></HTML>