Quote:
Originally Posted by damen
Replacing the 3A3 with a solid state rectifier eliminates the X-ray source in the cage.
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The high voltage regulator tube is the possible source of X-rays, not the rectifier. The rectifier has peak voltage across it when it is not conducting. As a shunt regulator, the HV regulator has the regulated high voltage across it when it is conducting, and current that varies oppositely to the CRT current.