Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "leon_heller" <leon355@...> 
wrote:
>
> I've uploaded a photo of my simple UV exposure unit:
> 
> Photos>Leon's>UV unit
> 
> The black-light UV tubes are mounted in ordinary 8W fluorescent 
light 
> fittings. The box is made from MDF and wood, screwed and glued 
> together. A sheet of ordinary window glass that I had cut to size 
sits 
> on the wood strips at the top of the side pieces. Exposure time is 
13 
> minutes.
> 
> Leon
>

Nice job Leon! A lot less complicated that the one that Think N Tinker
describes. Lots of  Questions;  Did you consider white paint inside? 
Diffuser plate (milk white translucent acrylic) between lamps and the 
glass plate? Not getting any exposure variations from the areas 
directly above the lamps and the area between them? I see a number of 
people  referring to various things as Black Light, `GROW' 
lights, `Aquarium' fish tank lamps, Bug Zapper lamps and I remember 
the `Black Light' lamps that had a dark blue or purple glass, (still 
see them every so often,especially around Halloween) what exactly was 
the INTENDED purpose of the lamps you are using? 
How about telling us the physical size (dimensions) of that exposure 
unit, PLEASE.

Thanks