Chua’s Circuit:

 

http://www.cmp.caltech.edu/~mcc/chaos_new/Chua.html

            Theory and Simulation

 

http://www.geocities.com/chaiwahwu/chaosintro/chua_ckt.html

            Some Theory

 

http://spigot.anu.edu.au/courses/engn2211/doc/chua.html

            Theory and Charts

 

http://bwrc.eecs.berkeley.edu/People/Grad_Students/wrdavis/chaos/research.html

            Theory, advances