SPICE - Arguably the world's best known circuit emulation program. Links to zillions of free versions of SPICE - some are evaluation and demo versions and others are less restricted. Versions for many many platforms (DOS, Windoze, Linux, MAC, many more) Note - this is only the first page of a multipage list. Click on "Next" button at bottom of contents list for subsequent pages. http://www.repairfaq.org/ELE/F_Free_Spice1.html -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body