Brief, motivating television programs, lectures, calculation exercises, and laboratory experiments were integrated to teach a course in applied electronics at the Royal Institute of Technology (Stockholm). The greater part of the learning work was done in the form of independent study checked by diagnostic tests. These tests proved to have an activating effect on the progress of the students, to offer feedback from student to teacher, and to provide a basis for continuous revision of the course material. The integrated teaching has been given to sophomore students at the institute, to teachers at technical colleges, and to industrial engineers. The project comprises the production both of software and hardware. On the software side are teaching models, textbooks, television programs, programed diagnostic tests, examples of circuit calculation, and laboratory experiments. On the hardware side are the program-controlled feedback system DIATEST, which contains equipment for control and display of multiple-choice tests. An electronic responder (ESAU), especially developed for this project, was used for collection of responses. (MF)