>Hi David (David VanHorn), in
<028301bd7469$f0824820$e8f135ce@xenu.iquest.net> on Apr 30 you wrote:
>
>> It's also shown in the "Bad idea" circuits on page 670
>
>Now that you say it..  Unfortunately they don't tell why a circuit is a bad
>circuit.  For me the learning effect of these pages is zero.  Therefore I
>just ignore the bad circuit pages.
>
>Does an addendum with explanations exist?

Barnes and Noble has a "student's guide" or some such.  For me that was the
most fun part of the book.
Basically, at the end of each section, you should be able to look at the bad
idea circuits and tell why. Some
are easy, and some are suttle.  It's kind of like defusing a bomb :)