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Subscriber loudspeaker "Cheremshina-310" presumably since 1982 produced Lviv software named after the 50th anniversary of the October Revolution (previously it was the Lviv Telegraph Equipment Plant).
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The subscriber loudspeaker `` Cheremshina-310 '' is designed to reproduce a low-frequency program transmitted over local wired networks with a voltage of 30 V. The model uses a 1GD-30 loudspeaker and a small-sized transitional transformer.
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Rated input power - 0.15 watts.
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The average sound pressure is 0.25 Pa.
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The range of working sound frequencies is 160 ... 5000 Hz.
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THD - 8%.
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Input impedance 3.6 kOhm.
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The dimensions of the loudspeaker are 250x166x78 mm.
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Weight - 1.5 kg.
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Retail price - 5 rubles.
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