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EE Virtual Library
http://webdiee.cem.itesm.mx/wwwvlee/
Electrical and electronics engineering virtual library.
UCLA
http://www.chfe.ee.ucla.edu/
Center for H.F. Electronics.
University of Pennsylvania
http://pender.ee.upenn.edu/rca/
Undergraduate Lab, E.E. Dept.
University of Washington, EE Dept.
http://www.ee.washington.edu/eeca/
EE Circuits Archive.