Homebrew PCBs

Yep, the LED's they used where: Kingbright L-7113UVC.
That particular LED has a 20 degree "beam", they put 24 of them in a grid 
~32mm appart. The distance from the LED to the PCB where 80mm and exposure 
time around 6min. Or so the claim...

    /Henrik Olsson.

----- Original Message ----- 
From: "Leon Heller" <leon.heller@...>
> Elektor had an article on a unit like that, for PCBs up to single Eurocard
> size.
>
> Leon