Quote:
Originally Posted by marty59
As to the front face, bonded or un-bonded there is the protection of x-ray shielding if followed in early interchangeability instructions as well as implosion protection. Even if the front glass is not leaded it would provide protection from "soft" x-rays being emitted as there is that "additional layer". Granted, leaded glass is better I know. The manufacturers' had to ensure precautions from a liability/safety standpoint as well as maintaining interchangeability standards for tube replacement back in the day.
As many of us may have noticed, a curved face for a 21FBP is about twice as thick as a 21FJP. The bonding does make up for some difference though.
I do believe we are plenty safe after doing cataract surgery although I will still maintain my distance!
I know of a retired CRT rebuilder and when he's back in town I'll run have to run this past him.
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My retired rebuilder guy used to work for Video Display Corp in Dallas. According to him, the bonded face glass was there for implosion protection more than anything and were not leaded.