My word what a bunch of fancifull answers to this question obviously all from wanna be TV techs , First the CRT only holds a charge for a short while once switched off , they are designed for the charge to bleed away , maybe 1 hour at most ! The main filter capacitors in the power supply also loose their charge after a short while , there is however an exception when a electlolytic capacitor will remain charged and that is when there is a fault that disconects the capacitor from the rest of the power supply ,then a charge will remain for a couple of days but 5 years ! never !!!!
2006-09-13 23:27:39
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answer #1
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answered by Realist 2006 6
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Don't take this the wrong the wrong way, but I got a good chuckle out of your question.
You were not electrocuted - you were shocked. If you were electrocuted, you would be dead and some else would have had to write this question for you. However, you probably thought you were electrocuted when you discharged that picture tube. OUCH !
The picture tube in a television set is one big, giant capacitor - it can hold an electric charge even when it's unplugged for a long period of time. The anode, the thick wire attached to the picture tube, supplies between 25 - 30 THOUSAND volts DC to the tube when it is operating. This voltage is stored on the inside of the tube when it is shut off.
It is normal practice for a TV serviceman to discharge this voltage to ground when he is servicing a set.
You have learned a very valuable lesson.
Two kinds of people take their watch apart:
A watchmaker and a fool.
2006-09-11 12:08:52
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answer #2
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answered by LeAnne 7
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True, there are many capacitors in a television set. But there are one or two that are HUGE and hold a charge for a long, long time (up to or over 65,000 volts). It is best to let a professional deal with this, some of those huge capacitors don't look like capacitors....a TV technician will know how to discharge them.
2006-09-11 12:02:01
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answer #3
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answered by Albannach 6
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Listen to LeAnne, she's got the answer. Once the picture tube is charged there is no place for the charge to go, so it sits there until some one touches it. The tubes in monitors are the same.
2006-09-11 16:37:52
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answer #4
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answered by Aurthor D 4
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all I can think of is capacitors, but they should have discharged a long time ago. . a capacitor is like a poor battery. . holds a charge but it eventually dissipates. .
your experience is one for the news and for the books. .
2006-09-11 11:58:02
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answer #5
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answered by Wayne A 5
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A big capacitor.
http://en.wikipedia.org/wiki/Capacitor
If not that, you may have just been confused by a static discharge when you touched the set.
2006-09-11 11:57:37
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answer #6
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answered by ecmfw 4
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