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Author Topic: Text and graphics on CRT  (Read 11656 times)

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Offline SeanB

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Re: Text and graphics on CRT
« Reply #25 on: December 14, 2012, 03:16:39 pm »
They use a voltage derived from the other windings as a sample of the EHT generated. If it gets too high generally there is a zener or gas discharge tube that fires and shuts down the power supply.
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Offline Mr Smiley

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Re: Text and graphics on CRT
« Reply #26 on: December 14, 2012, 04:51:45 pm »
They monitor the B+ voltage, as that drives the HV.

All you ever wanted to know about CRT's and monitors  :-+

https://www.youtube.com/user/randyfromm/videos

Check out the 'CRT monitors' parts 1 to 4.

 :)
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There is enough on this planet to sustain mans needs. There will never be enough on this planet to sustain mans greed.
 
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