Homebrew PCBs

The fluorescent light bulbs I found works the fastest and best for  
for pcb exposure produce ultraviolet from 310 nanometers to 400 
nanometers (UVA:

1.  Black light Blue (Dark blue in color) on the bulb it will be 
labeled "BLB". the last batch I got was from "Spencers Gifts" in the 
mall. it was just like the under the counter fluorescent light 
fixtures. plug ac cord in AC in light out simple.  

2. the "BL" will work the same but do not have a visible light 
blocker.

3. a tanning lamp will also usially work well.

4. "HID" almps work well also as long as they do not have the UV 
filter built as part of the bulb.

I do not recomend "black light" incandesant bulbs they really dont 
work well the UV they put out is a lot lowwer then the BL or BLB 
fluorescent.



good luck 
BoonS



--- In Homebrew_PCBs@yahoogroups.com, Robert Hedan 
<robert.hedan@v...> wrote:
> If your need for a UV light is to expose PCBs, household white 
fluorescent
> does the trick fine.  A complete 18" white fluorescent light costs 
$5 at the
> local Dollar+ store.
> 
> Robert
> :)
> 
> 
> -----Message d'origine-----
> De : Homebrew_PCBs@yahoogroups.com 
[mailto:Homebrew_PCBs@yahoogroups.com] De
> la part de Russell Shaw
> Envoyé : juin 15 2005 01:42
> À : Homebrew_PCBs@yahoogroups.com
> Objet : Re: [Homebrew_PCBs] UV Light
> 
> 
> Daryl Mills wrote:
> > Hi,
> > 
> > Simple question, I'm wanting to get some UV lights but the 
wholesalers 
> > call them Black Lights - and there is "black light blue" (a dark 
blue 
> > tube) as used at parties etc to make white shine and "black light 
> > white" (a white normal looking) which nobody seems to know about.
> > 
> > Can somebody shed some light on this problem (pardon the pun).
> > 
> > Daryl.
> 
> Blacklight can be a generic term for UV globes.
> 
> When applied to fluoros, it means more specifically the UV flouros 
that have
> white phosphor.
> 
> Black-light-blue globes and fluoros are both made from dark blue 
Woods glass
> that is a UV filter. You can get mercury HID lamps like that too.
> 
> Clear UV fluoro and HID lamps put out extra short-wave UV and is no 
better
> for doing PCBs. They're unsafe to look at too (tho they can be 
cheaper).
> 
> 
> 
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