Using circuit diagrams, PCB layouts, parts lists and clear construction and installation details, this book provides projects for the reader with a basic knowledge of electronics. Projects include laboratory power supply projects for which there are a wide range of applications for the hobbyist, from servicing portable audio and video equipment to charging batteries, and miscellaneous projects such as a split charge unit for use in cars or similar vehicles when an auxiliary battery is used to power 12v accessories in a caravan or trailer. Useful and innovative, these projects are practical and affordable.