X-ray apparatus : complete outfits and accessories for X-ray laboratories (1908)
Kny-Scheerer Company · New York : Kny-Scheerer · leaf 31
G/..5722 G/..5764 To avoid the destructive effect caused by the passage of a current in the direction fromthe cathode to the anode of an X-ray tube, various devices such as spark gaps, valve tubes,etc., have been designed. The valve tubes suppress the undesirable current in a very efficientmanner;…
X-rays · Radiography
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