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Music Display:
The
Music Display produced color vector graphics, driven directly from
music. It was built around a round color CRT salvaged from an abandoned
TV studio in the basement of Hoch Auditorium. Display images here.
The deflection driver is a Heathkit stereo amplifier. The tube amp
matches the relatively high impedance of the deflection yoke.
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The original deflection yoke is still present, hanging off to the side,
since it is a part of the resonant circuit that generates the high
voltage.
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The driver board controls the electron guns in the CRT. There are
filters to map low frequencies to red, mid-range to green, and highs to
blue.
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