History of Electron Tubes
History of Electron Tubes

Author: Sōgo Okamura

Publisher: IOS Press

Published: 1994

Total Pages: 246

ISBN-13: 9789051991451

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Almost 90 years have passed since the invention of the thermionic electron valve in 1904 by Sir John Ambrose Fleming. During this period, the development of electron tubes created the so called Electroni Age. Electron tubes played the leading role in the electronic equipments until the middle of the 1950s when solid state devices such as transistors and integrated circuits replaced electron tubes in various applications and accelerated the electronic age.

The A B C of Vacuum Tubes in Radio Reception
The A B C of Vacuum Tubes in Radio Reception

Author: Elmer Hugh Lewis

Publisher: Forgotten Books

Published: 2016-08-13

Total Pages: 134

ISBN-13: 9781333212285

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Excerpt from The A B C of Vacuum Tubes in Radio Reception: An Elementary and Practical Book on the Theory and Operation of Vacuum Tubes as Detectors and Amplifiers; Explains Non-Mathematically the Fundamental Principles Upon Which All Vacuum Tube Circuits Are Based The inauguration of radio-telephone broadcasting has quickly aroused an enormous general interest in radio reception of speech and music. The possibilities of this new method of broadcasting information of general interest and entertainment can hardly be estimated. The method is revolutionary and has been aptly compared to the invention of the printing press in this respect. Vacuum tubes make possible the reception of radio-telephone speech and music and radio-telegraph signals with a degree of satisfaction not approached by prior devices. The vacuum tube appears to the layman as a complicated form of incandescent electric lamp which operates in a very mysterious manner. In writing this little book the author has endeavored to overcome this impression and to clearly set forth the elementary principles of theory and operation. It is assumed that the 'reader has no knowledge of radio and very little, if any, of electricity. Mathematics has been especially avoided in the treatment of the subject and no technical terms are used without their meaning being made clear. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.