[Message appeared to have bounced, can't really tell with this mail =
client, apologies if you get two]

I made my own box a while back, I bought 'replacement' UV tubes and =
starters out of Farnell and a standard 16W? (I can't remember now, but =
double what a single tube is anyway as you'll be running two off it) =
ballast.
I made a nice little PIC timer with a single starburst LED display =
(minutes), I used a 16C505 and output the LED data serialy onto a CMOS =
shift register at 4KHz, (A bit of a kludge but I didn't have any 'internal =
logic' LED displays in my junk box, and anyway it worked :).

I made the box out of mild steel, and the reflector out of polished =
aluminium:

|  |                                   |  |
|  \   { }                 { }     /   |
|    \______________/     |
|____|_|________|_|_____|

Apologies for the ASCII art, as Rolf would say 'Can you tell what it is =
yet?' but hopefully you can see the internal construction.

DON'T use perspex for the platern !
I tried to, it glows blue and seems to absorb a lot of UV, the boards had =
weak areas as well.
Your local builders center can (or should be able to, both mine could) cut =
you glass for practicaly nothing, I'd also advise staying away from =
'agricultural glass' although I didn't try it.

And finaly I used a sheet of 3mm steel with foam dyed black stuck to it as =
a lid, make sure you leave internal room for hinge bolts and the lid clip =
studs......I didn't and had to stick them on with epoxy.

It may have been ugly but it saved me =A3100 on buying one from Farnell =
and it worked great, 4 mins exposure did a board nicely with no weak =
areas.

Good luck with yours :)

Jonathan Starr=20


>Has any body made their own UV light box? Anyone want to share their =
>experiences?
>Regards
>Stuart
>
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 =20

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