True words of wisdom! Spice is as good as the models it uses. Unfortunately they are not that good! Two Opamps near DC always simulate fine ;-) VV Matt Pobursky wrote: >And lastly, I never fully trust any Spice simulation. They're great for >catching obvious mistakes in your design, but until I see real hardware >on a real circuit board and can test it with real world inputs and >outputs I never consider the design "right". >Matt Pobursky >Maximum Performance Systems --------------------------------- Do you Yahoo!? Yahoo! Domains - Claim yours for only $14.70/year -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body