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Subject: Re: Dissapearing Tracks in deveoper

From: "Ben H. Lanmon" <bhleavi@...>
Date: 2004-02-05

> a/ The problem may be that I am using Phillips TL 8W / 08 F8
T5 /BLB
> blacklight tubes and not pcb exposure tubes (which are now back in
> stock). Maybe these tubes do not produce the uv required to expose
> the board or
> b/ the glass is stopping the uv from passing to to the board (this
> was salvaged from a
> cheap photoframe)

I use 15 watt blacklight tubes, they work fine, normally expose
about 5 mins.