Homebrew PCBs

Thanks all

--- In Homebrew_PCBs@yahoogroups.com, "Tony Smith" <ajsmith1968@...> wrote:
>
> > >You need UV lamps (long wave for positive resist)!
> > >
> > >Leon
> > >--
> > >Leon Heller
> > >G1HSM
> > 
> > 405nm?
> > Cristian
> 
> 
> About that, some boards need closer to 370nm.  That's in the UVA band.  The
> germicidal ones are UVC (200nm-ish).
> 
> The UV LEDs you can buy are usually around 400nm or so, which is why they
> work.  I've seen shorter wavelength ones, but they were a bit $$$.  Those
> little nail polish curing lamps are probably the cheapest (off eBay).
> 
> Tony
>