   Creating Electronic Circuit Diagrams
  Does anyone know of a good free program to make electronic circuit diagrams.  A quick search on google turned up a whole bunch of trial editions that seem to watermark the diagram.  Any suggestions?Thanks   
  http://www.altera.com/products/software/products/quartus2/qts-index.htmlmight be able to use the student version of that. I think it has both basic wiring stuff as well as the digital circuits it is ment for.   ;  I find that dia is a good generic diagramming tool. It doesn't do anything really good, IMHO, but it will do a variety of stuff you throw at it. :)   ;  There are probably some open source versions of SPICE and it's related tools available, CircuitMaker 2000 is also pretty reasonable - the student version is free & ok for small diagrams, but limited as to the number of components you can use However, I've just checked that link & it's no longer downloadable - there might be a copy floating around online somwhere   ;  http://www.expresspcb.com/   