Since 1957, the radio "Volna" has been producing the Izhevsk Radio Plant.
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The Volna class 4 network dual-band receiver was released in the fall of 1957 in the amount of 50 copies, at the not yet fully built radio plant.
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Since 1958, the receiver has been put into production in 2 design options: in a case made of wood and plastic, later a metal version of silumin was added.
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A small batch of receivers was produced in a wooden case, and a somewhat larger batch from the silumin.
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The most widespread design is in plastic.
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"Volna" is a three-lamp DV, SV superheterodyne powered from the mains.
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Sensitivity with external antenna 400 μV.
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Adjacent channel selectivity 18 dB.
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Rated output power 0.5 W.
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The range of reproducible frequencies is 120 ... 4000 Hz.
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Power consumption 30 W.
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Dimensions and weight of the receiver in a wooden case 320x245x170 mm.
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Weight 5.1 kg.
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Dimensions in a plastic case 270x215x145 mm.
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Weight 4.2 kg.
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The price of the receiver in a plastic case is 28 rubles 75 kopecks, in a wooden case 32 rubles 88 kopecks (1961).
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In April 1958, at the World Exhibition in Brussels, the plastic version of the Volna radio was awarded a Grand Prix diploma and a gold medal.
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Chief designer of the radio, engineer A.S. Balakshin.
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In the third quarter of 1958, the radio was upgraded.
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Its design and electrical circuit were redesigned, in particular, the chassis took a standard form, the loudspeaker was also shifted to the center of the case, the diodes in the rectifier were replaced by the kenotron, the scale pattern and decorative fabric were changed, the circuit in denominations and types of radio components was corrected.
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On the basis of the already modernized receiver, in the fall of 1958, the plant began production of a radio called Volna.
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In the collections of collectors, you can sometimes find a three-lamp radio `` Volna '' of the first version, released after 1958 or even in 1960, the answer is simple - the Izhevsk radio plant and all related enterprises created a decent stock of chassis and components for the first version of the radio, here
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and both versions had to be released for a while.
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