This timeless classic provides a clear and useful guide for electrical system troubleshooting. It covers such subjects as lightening protection, engine instruments, and alarms. The chapter on Electrolytic Corrosion is the most definitive text available. The 12 Volt Doctor s Practical Handbook has an expanded troubleshooting section. ISBN 1 878797 13 1. Since it is illustrated with simple drawings, you will be able to use The 12 Volt Doctor s Practical Handbook even if you have no previous electrical experience. With the Doctor you can: Fix electrical problems on board before calling in expensive outside technicians. Learn and understand basic electricity. Maintain your own 12 volt system. Understand and use zincs effectively. Isolate and repair hard to diagnose electrical problems.