Re: Re: Building UV exposure unit (was Re: new to list)

If you buy the assembled units they have the piece of sheet metal already. The metal apparently grounds the bulbs. Without the metal they won't start. They would start when I moved my hand to within 1/2 inch of the bulbs????????????? Spent several hours finding that out when I built mine.

George
>
> From: Dalyvoss@aol.com
> Date: 2004/11/03 Wed PM 06:21:10 GMT
> To: alt-photo-process-l@sask.usask.ca
> Subject: Re: Building UV exposure unit (was Re: new to list)
>
> Dave Rose wrote:
>
> "Welcome to the list.
>
> If you're handy with tools and able to design & fabricate, building an
> exposure unit is an easy weekend project. Construct a wooden box to hold
> your bulbs and bulb sockets. 1"x6" boards with a thin plywood backing works
> well. Position a large piece of sheet metal immediately behind the bulbs -
> otherwise they won't turn on. Go to a electrical supply house to buy the
> bulbs and associated hardware."
>
>
> Thanks for the welcome. Yeah, it's difficult to be a painter/artist type
> without knowing about power tools and fabricating.
>
> "Position a large piece of sheet metal immediately behind the
> bulbs -
> otherwise they won't turn on"
>
> Say whaaaa? Why would that be?
>
> susan daly voss
> NY
>
>
>
Received on Wed Nov 3 12:51:23 2004