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Old 02-09-2020, 08:49 PM
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Join Date: Jul 2004
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Quote:
Originally Posted by Tom9589 View Post
I'm going to repeat an urban legend here (which means it may or may not be true).

I heard the x-ray problem was due to GE not wanting to pay RCA royalties for using the 6BK4 and came out with their own shunt regulator which generated the x-rays.
The problem came about due to faulty manufacturing in which the tube elements were not properly aligned. If all the elements were straight and concentric, the X-rays generated by the anode were blocked by the lower tube elements, but if mis-aligned, the tilted elements would allow some X-rays to escape around the edges.
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