The portable transistor radio receiver "Quartz-402" has been producing the Kyshtym radio plant since 1972.
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A fairly rare receiver in the USSR.
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It is an upgrade of the Quartz-401 model of the same 1971 plant.
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Instead of LW, the model uses a survey HF range, covering sections of 25, 31, 41 and 49 meters.
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The sensitivity of a radio receiver with a built-in telescopic antenna in the HF range of 300 µV.
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Selectivity on image channels 12 dB.
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According to other technical characteristics, the radio receiver "Quartz-402" coincides with the base one.
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The radio was mainly exported, but sold in the USSR, with English and Russian letters (rarely) in the name.
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