Amperevoltommeter "Ts-20" from the beginning of 1955 produced the Omsk plant "Electrotochpribor".
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The combined device "Ts-20" is designed to measure the magnitude of AC and DC voltages, amperage and resistance.
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For more than 30 years of production, the device has not undergone significant changes, except for the replacement of its elemental base with a more modern one, and a black carbolite case with a plastic one with rounded or sharp corners, mainly of light shades.
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The device was also produced by other factories, which differed in control regulators, copper, nickel-plated or tinned sockets.
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The price of the device was constant at 19 rubles.
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An exception was the Ts-20 avometer produced in 1976, complete with a soldering iron, additional devices and solder.
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