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A comment on The biggest CRT ever made: Sony's PVM-4300 – The Silicon Underground. Parent comment

Re:The biggest CRT ever made: Sony's PVM-4300 – The Silicon ... by perihelions on Saturday June 22, 2024 @07:55PM (#40763349)
On top of the mechanical issues, CRT glass also functions as x-ray shielding, for which reason it is leaded (Pb). You can't really make that part lighter.

https://en.wikipedia.org/wiki/Cathode-ray_tube#Body

https://www.epa.gov/hw/frequent-questions-about-regulation-u...

(This isn't really an answer to the overall question—just a narrow observation of interest).

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Re:The biggest CRT ever made: Sony's PVM-4300 – The Silicon ... by MBCook on Saturday June 22, 2024 @10:50PM (#40764349)
Oh I didn’t know that. Neat.
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Re:The biggest CRT ever made: Sony's PVM-4300 – The Silicon ... by throwaway2037 on Sunday June 23, 2024 @07:12AM (#40766537)
This is an interesting point. Does anyone know how much lead would be in a 21 inch monitor?
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Re:The biggest CRT ever made: Sony's PVM-4300 – The Silicon ... by RetroSpark on Sunday June 23, 2024 @08:34AM (#40766992)
According to [0], about 1.2 kg (2.6 lbs). Surprisingly this is mostly in the neck and funnel of the tube - the screen itself uses different metals because lead would affect its optical performance.

[0] https://www.sciencedirect.com/science/article/pii/S187802961...

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