Radio phone receiving; a practical book for everybody por Various

Radio phone receiving; a practical book for everybody por Various
Titulo del libro : Radio phone receiving; a practical book for everybody
Autor : Various

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Various con Radio phone receiving; a practical book for everybody

Reseña del editor About the Book Radio uses radio waves to carry information sound, by systematically modulating electromagnetic energy waves transmitted through space (i.e. amplitude, frequency, phase, or pulse width). While early attempts at developing a system of amplitude modulation for voice and music were demonstrated in 1900 and 1906, they had little success. However, during World War I radio was developed for military communications, and the first vacuum tubes were used. After the war, commercial radio broadcasting began in the 1920s and went on to became an important means of mass communication for both entertainment and news.About us Leopold Classic Library has the goal of making available to readers the classic books that have been out of print for decades. While these books may have occasional imperfections, we consider that only hand checking of every page ensures readable content without poor picture quality, blurred or missing text etc. That's why we: republish only hand checked books; that are high quality; enabling readers to see classic books in original formats; that are unlikely to have missing or blurred pages. You can search ""Leopold Classic Library"" in categories of your interest to find other books in our extensive collection. Happy reading!