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Voltage stabilizer "Beam" (USN-200) since 1970 produced in Frunze, Kazakhstan. The stabilizer is designed to power TVs and other household equipment that consumes no more than 200 watts of power from an alternating current network of 127 or 220 volts. Output stabilized voltage is equal to 220 V. The stabilizer automatically maintains the required voltage and does not require control when the mains voltage decreases or rises. The operating input voltage range is 0.7 ... 1.15% of the nominal. The power consumed by the stabilizer is 45 watts. Dimensions 286x122x150 mm. Weight 5.6 kg. Different factories of the country produced stabilizers of the type USN-200, similar in design, under various names.