""Principles of Electron Tubes"" by Herbert J. Reich is a comprehensive textbook that delves into the fundamental principles of electron tubes. The book covers a wide range of topics, including the physical principles behind electron emission, electron optics, electron beam formation, and the operation of various types of electron tubes. The author also discusses the design and construction of electron tubes and the various applications of these devices in electronics, communications, and other fields. The book is written in a clear and concise style, making it accessible to both students and professionals in the field of electronics. It includes numerous diagrams, illustrations, and examples to help readers understand the concepts presented. Overall, ""Principles of Electron Tubes"" is an essential resource for anyone interested in understanding the principles and applications of electron tubes.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.