Homebrew PCBs

After reading your post yesterday, I decided that building an exposure box
for 2 sided boards is a huge step toward getting 2 sided boards out of my
kitchen with reliable results.  I ordered a 15w blacklight from:

http://www.musiciansfriend.com/

It is the entire fixture, not just the lamp.  $13.  They wanted $8 to ship 4
of these to Michigan.  That is hard to beat.

Now, I choose not to use 2 on each side, but 1.  I have been using a single
bulb 12" from a 6 x 9 board, with a 24 min exposure.  So I am going to start
with 1 per side.  If I need to up the number, I will.

On Sat, Feb 13, 2010 at 7:18 PM, designer_craig <cs6061@...> wrote:

>
>
>
> I was thinking of making a new UV exposure box. Got rid of my old one
> years ago when I was in a down sizing mood.
>
> Been looking for UV bulb sources. I think my old unit used F15T8BL
> tubes but not sure of the number.
>
> Looking on ebay I see a lot of low cost nail curing lamps and nail
> curing units. One add has 4 9W U shaped CF style UV lamps for $8.49
> (item # 310199835791). Then you can get an entire nail unit for about
> $35 and get 4 bulbs, balasts and lamp sockets. I think 4 bulbs would
> make a nice 5 x7 or 6x8 exposure unit.
>
> Has anyone ever tried these bulbs or one of the units on PCB resist?
>
> I was thinking of using an array of UV led's but this may be easier and
> provide more power.
>
> Craig
>
>  
>



-- 
Thank you,

Barry


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