[rescue] Dual head Octane SI + ESI

Scott Newell newell at cei.net
Mon Sep 29 14:11:40 CDT 2003

>Or... for the really insane you could use an A-D converter and
>some logic to pulse out three different 8 bit intensities via
>a parallel port to change the currently displayed color.....

I'd probably use a D-A converter instead, unless you were planning on
closed loop control with a photodiode or three...

I'm disappointed that the SGI folks didn't use a high quality lamp to begin
with.  Surely you can get a good low voltage lamp with a nice hefty
filament, maybe even run undervoltage (5V in to a 6V lamp?), to last more
than a few years.


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