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My father invented a color organ that passed all colors twice through a white globe
(once into the bottom of the hollow globe, and again as it passed to be viewed.)
Produced the illusion of a single huge lightbulb that could change colors and pulse
to the music.
Looked best with an inverted spectrum: Blue for lows, red for highs.
I always thought it did a poor job of yellow, and four colors might have been
better than only three. It had four lamps, but two were blue, cause blue was
weaker than red and green. Dicromatic filters, cause other filters of the day
weren't narrow enough to produce deeply saturated colors.
Also cadmium sulfide cells for feedback... It sat on an inverted trashcan
and basically looked like Dalek. This was very early 70's. I lost it in a storage
accident, but mean to rebuild again. I need the golbe, I can't find seamless
white glass in 24inch anywhere. I see 18 inch, and maybe 20 hanging at
every WaffleHouse. But where to buy?
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Light organ help
