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Coolidge X-Ray Tube, Vol. 1 (Classic Reprint) by Electric X. -Ray Corporation (2015, Trade Paperback)
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Forgotten Books USA (6271)
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About this product
Product Identifiers
PublisherForgotten Books
ISBN-101330603761
ISBN-139781330603765
eBay Product ID (ePID)247324728
Product Key Features
Book TitleCoolidge X-Ray Tube, Vol. 1 (Classic Reprint)
Number of Pages30 Pages
LanguageEnglish
Publication Year2015
TopicElectronics / General
IllustratorYes
GenreTechnology & Engineering
AuthorElectric X. -Ray Corporation
FormatTrade Paperback
Dimensions
Item Height0.1 in
Item Weight1.9 Oz
Item Length9 in
Item Width6 in
Additional Product Features
Intended AudienceTrade
SynopsisExcerpt from Coolidge X-Ray Tube, Vol. 1 The cathode filament may be heated by means of a storage battery or a small transformer. The battery is universally applicable. The transformer may be used wherever there is alternating current available, either from the supply mains or from a synchronous converter. The filament current transformer is not to be recommended for radiographic work where there is much line drop or fluctuation in the current supply. The transformer is generally used wherever alternating current is available. This transformer should have a low tension output of 10 to 12 volts and not over 5 amperes. It should be capable of finely graduated control by means of either a resistance or variable inductance device. As the low tension side of this transformer will be brought to the full potential of the tube, it is important that it be thoroughly insulated from the high tension side, the ground and the patient. The storage battery may be used where there is no source of alternating current or where on account of fluctuation of voltage and line drop, the use of a transformer is unsatisfactory. The storage battery should be a 5- or 6-cell (10- or 12-volt) 40-ampere-hour battery, and arrangements should be made so that the battery may be connected during the night to the charging circuit. Before using the tube for the first time each day, the filament circuit should be dosed for a few minutes. This allows the battery to reach a stable condition and so eliminates fluctuations in the filament current. (A fully charged storage battery shows 2.5 volts per cell, dropping rapidly to a stable point of 2 volts.) It is inadvisable to charge the battery at frequent intervals during the day owing to the trouble from instability in voltage referred to above. If battery leads other than those furnished with the tube are used they should not be of greater resistance than these. Leads of too great length will add enough resistance to the filament circuit so that additional cells of battery may be needed. This may be corrected by the use of heavier wire. 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., Excerpt from Coolidge X-Ray Tube The bulb of the universal type tube is 7 in. In diameter. The over-all length is approximately 20 in. 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.
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