On Tue, 7 Feb 2006, Denny Esterline wrote:

> Have we really _advanced_ to the point where we're discussing programming
> PICs with punch cards!?!

History repeats itself (at least for people who did not learn the 
lesson the first time around ;-)

> Actually I like the phototransistor flash idea. Has anybody tried a LCD
> monitor?

If you try this think about low pass filtering. The spot will trip the 
phototransistors several times per 'flash' in every frame in a crt. In a 
lcd the backlight frequency will do the same.

Peter
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