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Getting the Most Out of Vacuum Tubes

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The purpose of this book is not to add another volume to the many excellent ones available on what makes the vacuum tube work. Rather, it is intended to shed light on the almost completely neglected subject of why these versatile devices sometimes do not work.

Informed scientists and engineers have frequently stated that the life of a vacuum tube in normal service should exceed 5,000 or even 10,000 hours. The fact that some of them do not last this long is well known. The question then is, "Why do they so often give less than their predicted or possible potential?"

J. M. Bridges, Director of Electronics, Office of the Assistant Secretary of Defense, speaking before the RETMA (now EIA) "Symposium on Reliable Applications of Vacuum Tubes" at the University of Pennsylvania in May 1956, said: "It has been demonstrated by service tests that the average number of tube failures per operating hour in two equipments of equal complexity, having approximately the same tube complement, can differ by as much as a factor of ten, due entirely to differences in the thoroughness and completeness of engineering design."
Time Mastery: How Temporal Intelligence Will Make You A Stronger, More Effective Leader
Time Mastery: How Temporal Intelligence Will Make You A Stronger, More Effective Leader
"To be most effective, leaders must move beyond time management to time mastery. Time managers are reliant on clocks and calendars; time masters develop an intuitive sense of timing. Time managers see time as a fixed, rigid constant; time masters view it as relative and malleable. Time masters have what John Clemens and Scott Dalrymple call...
E.guide: New York (EYEWITNESS TRAVEL GUIDE)
E.guide: New York (EYEWITNESS TRAVEL GUIDE)

Building on the success of the Eyewitness Travel Guides and Top 10 Travel Guides, DK has created e>>guides‹the perfect travel companions for the hip, style-conscious traveler. Highlighting the best places to eat and shop, and the coolest local hangouts, each guide has its own regularly updated website, ideal...

Linux Schnellkurs für Administratoren
Linux Schnellkurs für Administratoren
Als Bill Lubanovic und ich gerade die letzten Änderungen an diesem Buch  vornahmen, belauschte ich in unserem Cisco-Labor ein Gespräch zwischen zwei  Arbeitskollegen, die sich gerade über Linux unterhielten. Der Senior-Netzwerkguru der beiden ließ dabei eine interessante Bemerkung fallen. Er sagte, dass...

Functions of Matrices: Theory and Computation (Other Titles in Applied Mathematics)
Functions of Matrices: Theory and Computation (Other Titles in Applied Mathematics)
This superb book is timely and is written with great attention paid to detail, particularly in its referencing of the literature. The book has a wonderful blend of theory and code (MATLAB®) so will be useful both to nonexperts and to experts in the field. --Alan Laub, Professor, University of California, Los Angeles

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Inside Your Calculator: From Simple Programs to Significant Insights
Inside Your Calculator: From Simple Programs to Significant Insights
Many of us want to understand how the technological instruments that so pervade modern society operate.  This book answers questions about one of those devices: the scientific calculator.  Calculator keys seem to work like magic.  They tell us, for example, that the cosine of 56° is 0.559192903. This book explores the simple...
Algorithmic Architecture
Algorithmic Architecture
How to use Algorithms to solve complex design issues

Why does the word design owe its origin to Latin and not Greek roots? Where do the limits of the human mind lie? How does ambiguity enter the deterministic world of computation? Who was Parmenides and why is his philosophy still puzzling today? This unique volume
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