[sdiy] Photo etch experience please

[John Marshall]

Years ago, I used an arc light that I obtained used from a theater
supplier. There is plenty of UV in the arc.

John L Marshall

On Mon, Feb 8, 2016 at 6:48 PM, KA4HJH <ka4hjh at gmail.com> wrote:

>
> On Feb 8, 2016, at 8:38 PM, Paul Perry <pfperry at melbpc.org.au> wrote:
>
> > I think you need UV, or at least a source with UV in it.
>
> Yes, and the shorter the wavelength the better. With the old Kepro
> negative system I used direct sunlight for a few minutes.
>
>
> Terry Bowman, KA4HJH
> "The Mac Doctor"
>
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