If you are building an electronic circuit, then it is a good idea to protect it with some kind of case or enclosure. This kit will teach you how to build a function generator for applications such as an audio synthesizer. You may have used wooden cigar boxes, mint tins, or even aluminum cases to house your electronic projects, but why not give a plastic enclosure a try? They are easy to drill, feature a two piece design and have two insert areas for customized I-plates. View the schematic design and video below. You can find additional information here. Visit the Video section on our DIY Workshop page for more Circuit Skills lessons.