Freebie CAD
Anyone interested in modeling circuits and antennas at minimal cost can go to these sites.
Circuitmaker spice is available for download here:
You can just draw the schematic with this one.
No spice text files to deal with.
Also can do fun tube stuff.
http://babbage.cs.qc.edu/courses/Circuit_Maker/Ari Voors freebie NEC antenna modeling program is very good also:
His 3D version has great graphics.
http://home.ict.nl/~arivoors/TOCFrame.htmI've used both and had a lot of fun with each.
See some attached pics
Regards,
BobbyT nu2b
