Homebrew PCBs

>did you try to place a piece of that wobbly glass (bathroom window) 
>on top of the tubes to scramble the light?

That's not a good idea for an exposure box. Just the opposite 
(collimation) is recommended.


--- In Homebrew_PCBs@yahoogroups.com, "Herbert E. Plett" 
<cachureos@...> wrote:
>