Advanced Industrial Electronics, including SCRs, Diacs, Triacs, digital logic gates, operational amplifiers, etc. Fundamental Industrial Electronics, including power factor, multivibrators, UJTs, photocells, etc. Advanced Consumer Electronics, including vacuum tubes, JFETs, MOSFETs, super heterodyne radio, etc. Fundamental Consumer Electronics, including transformers, capacitors, inductors, filters, amplifiers, etc.