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The electronic apartment signaling device Verkhovyna-S was supposedly produced since 1983 by the Electron plant in the urban settlement
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Volovets, Transcarpathian region.
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It is used as a call in residential and work premises.
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The sound of the alarm simulates the singing of birds.
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The sound volume of the signal is adjustable.
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During the call, in addition to the nightingale trill, a light is lit in the window of the house in which a bird is visible.
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The electrical circuit of the detector is assembled on transistors.
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