• ELEN E3390y Electronic circuit design laboratory 3 pts. Lab: 6. Prerequisites: ELEN E3082, E3083, E3331, E3401, E3801. Advanced circuit design laboratory. Students work in teams to specify, design, implement and test an engineering prototype. The work involves technical as well as non-technical considerations, such as manufacturability, impact on the environment, and economics. The projects may change from year to year.