Since 1952, the network tube radio "Riga-10" has been producing the AS Popov Riga Radio Plant.
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The radio receiver "Riga-10" is a ten-lamp, five-band superheterodyne providing high-quality reception of broadcasting stations in the DV, SV, HF bands (3 half-extended sub-bands).
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The receiver can be used as an amplifier with loudspeakers to play back a record from an external electric player.
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The number `` 10 '' in the name means the number of radio tubes.
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For the implementation of high-quality sound in the speaker, a powerful full-range loudspeaker and separate tone control for bass and treble are used.
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There is a switchable IF bandwidth combined with the HF tone control knob.
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The scale is divided into 5 sub-bands and is hidden behind the front panel.
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A part of the scale corresponding to the working range is visible in the window.
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The scale is illuminated by 2 incandescent bulbs and graduated in meters.
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The radio is furnished in a wooden desk case.
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It is finished like precious woods, polished and varnished.
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Technical characteristics: The range of the received frequencies and waves: DV - 141.5 ... 438 kHz (2000 ... 723 m);
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SV - 510 ... 1622 kHz (576.9 ... 187.5 m);
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KV-1 3.95 ... 5.75 MHz (76.0 ... 52.2 m);
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KV-II 6.0 ... 7.4 MHz (50..40.5 m);
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HF-III: 9.45 ... 12.1 MHz (31.7 ... 24.8 m).
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Intermediate frequency "u003d 464 kHz.
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Sensitivity in all ranges 50 µV.
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Adjacent channel selectivity 46 dB.
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Attenuation of the signal through the mirror channel;
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on DV - 60 dB, on MW - 50 dB, on HF - 26 dB.
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The AGC efficiency is characterized by a 4.5 dB change in the output signal, when the signal in the antenna changes by 60 dB.
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The bandwidth of the receiver ensures reproduction of audio frequencies - 60 ... 6500 Hz.
,86e6f450b8cc469628ba70bf2947b049
Rated output power 4 W, maximum 8 W.
,86e6f450b8cc469628ba70bf2947b049
Average sound pressure 25 bar.
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The receiver is powered by an alternating current electrical network with a voltage of 127 or 220 V. The power consumed from the network does not exceed 85 W.
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The dimensions of the receiver are 605x310x340 mm.
,86e6f450b8cc469628ba70bf2947b049
Its weight is 24 kg.
,86e6f450b8cc469628ba70bf2947b049
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