Dick, that's a real good site to add to my library
I'd like to share one with the forum, it's rather obscure and not likely to be found, but may be useful to someone with a specific and difficult question they need answered. I have asked questions there and it is unbelievable how fast a detailed answer appears. If you use the forum be sure to read the rules first,
http://forum.allaboutcircuits.com/index.php
Thanks, JIM