Why can magnets PERMANENTLY fuck up CRT TVs?

665 views

I know that bringing a magnet near a crt can because with it because it interferes with the magnets in the tv. However, what I don’t understand is why this affects can be permenant, with discolouration and other issues still being present once the magnet is removed.

In: Technology

2 Answers

Anonymous 0 Comments

At the back of the TV is an electron gun (that’s actually what it’s called). The stream of electrons coming out of the gun are steered to phosphors on the glass with magnets. If you use an powerful outside magnet to redirect this stream of electrons you can end up burning out some of the phosphors by focusing too much energy one a small spot. This will permanent damage the phosphors.

You are viewing 1 out of 2 answers, click here to view all answers.