Металлоискатели своими руками. Как искать, чтобы найти монеты, украшения, клады

This book is a practical encyclopedia for radio amateurs, both beginners and experienced, focusing on building their own metal detectors instead of buying expensive branded ones. It covers various types of metal detectors and provides detailed instructions on setup and practical aspects like discrimination and waterproof construction.

• The description claims that the book focuses on building one's own metal detector rather than purchasing expensive brands.