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<DIV><SPAN class=343033420-26082007><FONT face=Arial size=2>Can someone explain
to me why this is so:</FONT></SPAN></DIV>
<DIV><SPAN class=343033420-26082007><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=343033420-26082007><FONT face=Arial size=2>I have been building
some projects now that use LM7805 voltage regulators.</FONT></SPAN></DIV>
<DIV><SPAN class=343033420-26082007><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=343033420-26082007><FONT face=Arial size=2>This is now the
second time I have had issues with a PIC chip not running.</FONT></SPAN></DIV>
<DIV><SPAN class=343033420-26082007><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=343033420-26082007><FONT face=Arial size=2>It is only when I
add caps to the input and the output that it settles down.</FONT></SPAN></DIV>
<DIV><SPAN class=343033420-26082007><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=343033420-26082007><FONT face=Arial size=2>Looking on the CRO,
the DC looked noisy.</FONT></SPAN></DIV>
<DIV><SPAN class=343033420-26082007><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=343033420-26082007><FONT face=Arial size=2>I thought that the
caps where there to trap AC.</FONT></SPAN></DIV>
<DIV><SPAN class=343033420-26082007><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=343033420-26082007><FONT face=Arial size=2>Do caps on an LM7805
player a larger role ? Is there something inside the reg that needs external C
?</FONT></SPAN></DIV>
<DIV><SPAN class=343033420-26082007><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=343033420-26082007><FONT face=Arial
size=2>Curious</FONT></SPAN></DIV>
<DIV><SPAN class=343033420-26082007><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=343033420-26082007></SPAN> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial
size=2>----------------------------------------------------------------------------</FONT></DIV>
<DIV><FONT face=Arial size=2>Andrew Rich VK4TEC</FONT></DIV>
<DIV><FONT face=Arial size=2><A
href="mailto:vk4tec@people.net.au">vk4tec@people.net.au</A></FONT></DIV>
<DIV><FONT face=Arial size=2><A
href="http://www.tech-software.net/">http://www.tech-software.net</A></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV> </DIV></BODY></HTML>