Amiga.org
Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: TheWizard on August 15, 2007, 06:20:45 PM
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Hello Amiga.org community,
I haven't posted in quite a while...anyways...I'd like to boot up some of my Amigas, but I noticed a strange X-ray warning on the back of my 1083s monitor. Has anyone else noticed this, and, after years and years of use, is it still safe to operate? Just want to make sure I don't glow after using it! :-)
Regards,
The Wizard
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every CRT emits xrays! since theyrs day 1 ;-)
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I expect this would only be a problem if you opened the casing of the monitor and exposed whatever it is which emits the X-Rays. I don't think they would be allowed to sell it if it gave X-Rays off externally...
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moto
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they does moto, they does!
oh btw ... nothing to worry anyway, otherwise with all CRTs i have here, i would be fried times ago! ;-)
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you wouldnt glow you would get cooked internally...
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Has anyone else noticed this, and, after years and years of use, is it still safe to operate?
Except for the usual infertility that results from using 1083-monitors, nothing serious really.
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Every CRT emits x-rays - when the electrons hit the phosphor (or the pitch mask), part of their energy makes the phosphor glow and some is emitted as x-rays. The tube's glass contains lead to shield off most of it, what actually passes through is fairly weak.
So don't sit with your nose touching the monitor! ;-)
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That explains why I glow in the dark with all the lights turned off. Or maybe since my monitors are 1084s, not 1083s they don't emit as much x-rays? :lol:
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thank good i got the 1084s and not the 1083s, i am safe :)
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I used a 1083s monitor for a week and now I can see through girls' clothes. So yes, they do give "strange X-rays" but its OK because unlike normal X-rays which can cause cancer, strange X-rays usually trigger super powers.
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You should try being microwaved, I've done it (18 seconds at 1000W), it ain't nice.
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ough! i see from your avatar! ;-)
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Good news! For my next colonoscopy I can just stand with the light behind me and tell the proctologist, "Hey, don't bother, I've used a 1083!"
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This has always been a problem with CRT's due to the high voltages used.
Last year at work, I was told I could no longer use my laptop screen as it was against UK health and safety regulations. I was told I must plug in a crt monitor (+ desk keyboard, mouse etc) and put the monitor on a stand so that the top of the screen was at eye level.
My response was to ask for a 100% guarantee that the crt would never give me harmful effects, since all the lcd display would do (and all they were protecting against) is to give me neck ache !
Health and Safety kills people due to the lack of knowledge of the despots pushing it !!!!!
And no I didn't :pint:
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Tripitaka wrote:
You should try being microwaved, I've done it (18 seconds at 1000W), it ain't nice.
i knew a guy at university...it was cold outside, so when he came inside he wanted to warm himself up...stuck himself between two microwave emitters, felt warm enough, acted normal for about 4 minutes before dropping down dead
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There was a monitor called the 1083? Whats the difference from the 1084?
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sir_inferno wrote:
i knew a guy at university...it was cold outside, so when he came inside he wanted to warm himself up...stuck himself between two microwave emitters, felt warm enough, acted normal for about 4 minutes before dropping down dead
Nnngh, most unpleasent, I'm just glad I was on a timer, it's a strange thing being microwaved, you know you should move but the signals just don't seem to leave your brain to make your legs work.
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TjLaZer wrote:
There was a monitor called the 1083? Whats the difference from the 1084?
Huh, they do exist:
http://amigahardware.mariomisic.de/cgi-bin/showhardware_en.cgi?HARDID=848
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If your still worried here's a low tech solution.
Buy a roll of colour photographic film.
Around 200 or 400 ASA should be ok.
Hang the unexposed roll in front of the monitor
for a couple of hours. Take the film to a 1 hour
lab and get it processed. Don't ask for prints.
If there are streaks running through the film,
you have x-rays. If the film is clear, nothing
to worry about. Most film labs won't charge if
there are no exposures. So your only cost is the
film. I worked as a photofinisher for over 14 years
and saw this done a few times.
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Awesome,
Thank you everyone for the great replies. I never knew using my 1083s could have such peculiar side effects. :-)
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People are seriously so paranoid they exposed film to find Xrays? Weird. Id be kind of surprised if a device that emitted enough Xrays to be a health concern would make it to market past various government regulators and test agencies like UL.
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Well, don't forget this hardware is some 20+ years old, and it's protective qualities may have degraded over time.
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TheWizard wrote:
Well, don't forget this hardware is some 20+ years old, and it's protective qualities may have degraded over time.
What "protective qualities"?
My CBM 1081S and 1084 at least don't have any "protective qualities". The back of their cathode ray tubes isn't even shieded with an metal sheet.
IIRC, it was in the early ninetees when I saw the first CRT monitors that were protected against radiation emission and had the label "TCO 92 compliant" on them:
TCO_Certification (http://en.wikipedia.org/wiki/TCO_Certification)
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It’s a good job that these monitors aren’t valve based devices.
In a lot of old valve TV's many used PD500 triodes as (I think) shunt stabilizers for the EHT. Due to the EHT that they work with, these valves emit quite a lot of X-Rays when in operation, and, in the same way as you have noticed on your monitor, have warning labels.
Unfortunately repair engineers had to work in close proximity to these devices whilst the TV's were powered up and with the metal shielding protection removed in order to be able to fix the TV.
Btw, PD500's have been used to generate X-Rays for photographic experiments just like those of Amiga hardware here on Amiga.org . There’s a website about it somewhere.
Another point - If you ever decide to dismantle your monitor and give it a really good clean, amongst other things don’t clean the black gungy stuff off of the back of the CRT that looks like baked on muck. That’s actually "aquadag" and is used to prevent the X-Rays from escaping from the tube (My experience shows that solvents, such as methylated spirits, tend to remove it quite well...)
Hodgkinson.