Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Tom" <judsquare@...> wrote:
>
> Please watch this youtube video if you are interested in UV light sources.
> 
> I have a Youtube video on the "Overview of the Kinsten PCB UV Exposure Box" 
> 

I have used the FL15BL tubes for over 20 years in a homemade wooden box that uses 4 bulbs in a 16 inch wide space. I have a homemade exposure frame (plexiglass and wood) that I use with it. The board and negative sit 5 inches below the bulbs. Exposure time for my dry film coated boards is 4-1/2 minutes with excellent results.