I'm new to this forum. Does anyone have a recommendation for any FREE/shareware software that would run on a MacBook, "Snow Leopard" operating system that could be used to draw simple circuit diagrams ?

Once upon a time, McDraw would have sufficed !

Thank you.

 

KiCad is experimental on Mac OSX

http://kicad.sourceforge.net/wiki/Main_Page

Eagle cad works on Mac

http://www.cadsoft.de/download.htm

 

There's this software called "Qucs" which is for Linux, I don't know if it works on Macs. Drawing circuits is very easy and intuitive.

 

There is always PaintCAD, it is meant for drawing only.

Introduction and PaintCAD

Bill's Albums

 

As already mentioned, QUCS:

http://qucs.sourceforge.net/download.html

Also please check out the FEL - Fedora Electronics Lab here:

http://spins.fedoraproject.org/fel/#about

This is a bootable Fedora Linux distro that is aimed at EDA. Qucs is part of this distribution. You can download the FEL 14 or 15 iso, and burn it to a DVD. Then run FEL from the DVD and check out the EDA packages, without having to install to your hard drive. I think Mac OS is a linux derivative anyway.

You can get the DVD iso for FEL 32 bit from here:

http://ftp.df.lth.se/pub/fedora-alt/spins/linux/releases/14/Spins/i686/

Fedora-14-i686-Live-FEL.iso

and here:

http://ftp.df.lth.se/pub/fedora-alt/spins/linux/releases/15/Spins/i686/

Fedora-15-i686-Live-Electronic-Lab.iso

If your machine is 64 bit, then just go up the directory tree and back down the x86_64 branch

There are some nice QUCS tutorials on youtube as well. The learning curve for QUCS is very qiuck, as it is a very intuitive program to use.

HTH