The course has two parts: eight experiments and one DIY project. The contents of the experiments are: the application of diodes in circuits, common-emitter BJT amplifiers, differential amplifiers, power amplifiers, negative feedback circuits and the applications of op amps. The topic of the DIY projects is related with application of circuits, analog or digital. Students should design a functional circuit using components from the electronic market. The aim of this course is to build a solid background on circuit theory for students and train them to learn how to design some common functional circuits.