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The subscriber loudspeaker "0.25-GD-III" was produced by the Leningrad State Plant of Radio Products from 1957 to 1963 inclusive.
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The loudspeaker did not have any other name, like the previous products of the plant, except for the type indicated in the marking, it was a standard subscriber loudspeaker of the 3rd class and was intended for a wire broadcast network with a voltage of 30 volts.
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Most of the loudspeakers were manufactured in standard dark brown and almost always had a dark gray or black back panel to which a colored paper data label was stuck.
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The devices were equipped with radio fabrics of different patterns and colors.
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The volume knob bore the manufacturer's logo in the form of a stylized "P".
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Loudspeaker dimensions 190x160x90 mm.
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