THIS book was first published in 1937 under the title “The Low Voltage Cathode Ray Tube”, which was somewhat misleading in view of the fact that it deals with the various forms of cathode ray tube ...
CERTAIN types of cathode-ray tubes in which the luminous spot on the fluorescent screen is moved by magnetic fields are liable to a peculiar defect, known as 'ion spot' or 'ion burn'. It is now ...
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