Comment by debo_ | Hacker News Reader

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Comment by debo_ | Hacker News Reader

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Remember the "degauss" button? I had no idea what it did, but the sound it made sure was satisfying.

https://youtube.com/shorts/R0OhD2Bc6FY

That attempted to demagnetize the components in the CRT that could cause beam deflection and warped colors.

That "component" was the shadow mask: https://en.wikipedia.org/wiki/Shadow_mask.

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