amrhamed2
Hazard to Self
Posts: 60
Registered: 14-12-2007
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UV lamp for TLC
I just wonder if I can use the UV lamps which are used in water sterilization systems for this task ..........
http://www.premium-water-filters.com/uv-water-filters.htm
It states that the uv lamp wavelength is 234 nanometers
If not ,what shall I use as an economic source for uv???
amr h mahmoud
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Fleaker
International Hazard
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Registered: 19-6-2005
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Mood: nucleophilic
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NERV is working on an easily made 100W UV bulb from a cheap commercial mercury vapour lamp. He plans on using it for his TLC plates and for
photohalogenation.
Neither flask nor beaker.
"Kid, you don't even know just what you don't know. "
--The Dark Lord Sauron
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Magpie
lab constructor
Posts: 5939
Registered: 1-11-2003
Location: USA
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Mood: Chemistry: the subtle science.
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Take a look at the 100w mercury vapor security lamp I reassembled:
http://sciencemadness.org/talk/viewthread.php?tid=8695&p...
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Klute
International Hazard
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Those aquarium lamp would be just perfect. But a cheaper options are the "eprom erasers" sold in informatics places (i have no idea of what an eprom
is, and why you would want to erase the poor thing with UV  ), where they sell
equipment to etch your own boards circuits. Some small models are very cheap, and work perfect with 254nm TLC plates.
I made myself a little wooden box to insatll th etube with a ballast and satrter and all, and protect myself from the UV's, but with a space to slide
the plates and see/mark the spots without been exposed. Cost me 15E at most!
\"You can battle with a demon, you can embrace a demon; what the hell can you do with a fucking spiritual computer?\"
-Alice Parr
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12AX7
Post Harlot
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OT: EPROM
| Quote: | Originally posted by Klute
But a cheaper options are the "eprom erasers" sold in informatics places (i have no idea of what an eprom is, and why you would want to erase the poor
thing with UV ) |
Roughly speaking, an EPROM is a silicon chip consisting of CMOS circuits and insulated gates which store charge representing on and off states.
Essentially, by shining ionizing radiation on the chip, these charges are momentarily shorted out and the EPROM is erased. You may've seen one
before, as the foil or tape covering the glass window is distinctive among integrated circuits.
Back on topic, it's fortunate, then, that they need such ionizing radiation, eh?
Tim
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Klute
International Hazard
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Registered: 18-10-2006
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Thank you for the explanation! Indeed, it's then a good thing to irradiate the little buggers Beware, eproms, here we come  (i can't help
picturing them like those little fury bears in Starwars, forgot their name)
Sorry for the off topic, couldn't resist
[Edited on 5-6-2008 by Klute]
\"You can battle with a demon, you can embrace a demon; what the hell can you do with a fucking spiritual computer?\"
-Alice Parr
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stoichiometric_steve
National Hazard
Posts: 827
Registered: 14-12-2005
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Mood: satyric
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| Quote: | Originally posted by Klute
i can't help picturing them like those little fury bears in Starwars, forgot their name |
ewoks they rule!
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