The color-music electronic designer "Raduga" has been produced, presumably since 1988, by the Pravdinsky Radio Plant.
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Nizhny Novgorod Region.
The CMU kit was disassembled, only the board was assembled at the factory.
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It was necessary to assemble the structure myself, to unsolder the wires.
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Power supply 12 volts from the external unit.
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The lanterns are removable, they were attached to the stand with a central spring washer.
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This washer was also a carrying handle.
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The lanterns could be placed in different directions, the length of the wires was about 1.5 meters.
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The wires were wound on the back of the lantern on metal staples.
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The sensitivity adjustment is available for each channel, and the overall sensitivity is also adjustable.
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Lights in red are tuned for low-frequency peaks, green for mid-frequency, blue for high-frequency.
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The backlight is neutral, with 3.5 volt bulbs connected in series.
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Adjustment with correct assembly and wiring was not required, the CMU started working immediately after assembly.
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