Based upon our popular two-day Overview of Electronics course, this new online course will introduce you to the basic ideas, the ABCs, behind electronic circuits. The course will consist of ten units each of which will require around 5 – 10 hours of study depending on your level of knowledge. The course is designed to act both as an introductory course and as a refresher course. After taking the course you should have a good idea of how electronic systems work and the basic ideas behind electronic circuits. In particular, the course focuses on the design of a Hi-Fi amplifier. The course is limited to “analogue electronics” where signals are represented by continuously variable voltages and will not cover “digital electronics” where signals are represented by discrete numbers. Students should normally have a reasonable proficiency in school maths and science. Study to GCSE-level is sufficient for most of the course, though study to A-level will enable a full understanding of the more advanced topics.