Since 1971, the Mriya-301 portable transistor radio receiver of the 3rd class has been produced by the Dnepropetrovsk Radio Plant.
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'' Mriya-301 '' - a radio tape recorder with 9 transistors and 2 diodes with an EPU-6-9V electric playing device.
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Ranges of received waves: DV, SV, KV-1 - 31 ... 25 m and KV-2 - 75 ... 41 m. In the HF range, reception is carried out on a whip (telescopic) antenna.
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Maximum sensitivity at an output power of 50 mW: at LW 500 μV / m, SV 200 μV / m, KV 30 μV.
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Real sensitivity at LW 1.5 mV / m, SV 0.8 mV / m and KV 100 μV.
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Selectivity on the adjacent channel: on DV, SV not less than 40 dB.
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Attenuation of the mirror channel at DV - 30, SV - 26, KV - 12 dB.
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AGC action: When the input signal changes by 26dB, the output voltage changes by 6dB.
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The band of reproducible sound frequencies is 300 ... 3500 Hz.
,86e6f450b8cc469628ba70bf2947b049
The nominal output power, with the THD of the entire channel of the receiver, is not more than 5% - 250 mW.
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The average sound pressure in the band of reproducible sound frequencies is 0.3 Pa.
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Power supply: six elements of type 373. Supply voltage 9 V. The current consumed by the receiver in the absence of a signal is 15 mA.
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The performance of the radio is maintained when the supply voltage drops to 4 volts.
,86e6f450b8cc469628ba70bf2947b049
Duration of operation of the receiver at an average volume from one set of elements of type 373: not less than 100 hours. The electric playing device has 3 speeds of rotation of the disk: 33;
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45 and 78 rpm.
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Current consumed by the electric motor is no more than 85 mA.
,86e6f450b8cc469628ba70bf2947b049
The dimensions of the radio are 288 x 117 x 90 mm.
,86e6f450b8cc469628ba70bf2947b049
Weight with batteries 3 kg.
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