Re: Weirdest problem
From: Gregory L. Hansen (glhansen_at_steel.ucs.indiana.edu)
Date: 06/05/04
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Date: Sat, 5 Jun 2004 23:49:33 +0000 (UTC)
In article <%Wlwc.4719$HG.3531@attbi_s53>,
Joseph Hansen <sumgie@comcast.net> wrote:
>
>"<SNIP> Yes, but it is tricky, I did discharge large CRTs that way, took
>them out
>> (for replacement), and then got zapped while holding them (you should be
>> VERY steady and not drop it in such a case).
>> This seems to be because the HV connection sort of charges up again,
>> maybe some late electrons...
>> JP
>>
>Um, beg to differ with the "charges up again" statement. If you discharged
>it and then got zapped, you just didn't do a good job of discharging it...
>maybe because of your equipment, or maybe because of your technique. I was
>a tv tech for two years, then a monitor repair tech for nine more. I know.
Electrytic capacitors store some energy chemically, like a battery, I've
read. Maybe there's some similar action in a CRT with... I don't know,
it's a lot of glass and metal in there. With the phospher on the screen?
-- "When the fool walks through the street, in his lack of understanding he calls everything foolish." -- Ecclesiastes 10:3, New American Bible
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