Providing examples of applications, this handbook examines the underlying technology of each type of power vacuum tube device in common use today. The author reports on new development efforts and explains the benefits of specific work. Basic principles are discussed, and supporting mathematics are included to clarify the material presented. Extensive technical illustrations and schematic diagrams aid the reader in understanding the maxims of the subject.What's New in the Second Edition?oReviews the latest in new vacuum tube technology - new devices and refinements of existing devices that extend power and frequency capabilitiesoIdentifies new applications for commercial and scientific researchoExamines new frontiers on materials science - directly impacting construction, reliability, and performanceoOutlines new methods of power tube design - yielding more efficient, lasting tubesoDescribes new modulation methods affecting power tube design and application, including digital technologies.