Homebrew PCBs

On Mon, Jul 8, 2013 at 9:14 PM, AlienRelics <alienrelics@...> wrote:

> In the '80s, I used bulbs that fit that description to expose negative
> resist coated boards. . . . They were called "Gro" lights. There are
> several brands, that was the one I used. Just a 65W reflector bulb about 18
> inches away, clamped under a sheet of glass very close to what you describe
> below.


Steve,

The bulbs I used were sold through graphic-arts suppliers. I haven't been
able to find them by Googling yet. Maybe they're not made anymore. I'm
pretty sure the Gro brand of grow lights is still around, though. I think
I've even seen them at Walmart. Fish and aquarium stores have full-spectrum
bulbs, too.

73,

Todd
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