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Antenna-feeder devices of systems of land mobile radiocommunication. Types, basic parameters, technical requirements and methods of measurements

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Unexchangeable rigid magnetic disk storage with movable heads. General technical requirements

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System for digital broadcasting DRM in the broadcasting bands below 30 MHz. Technical bases

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Semiconductor diodes. Method for measuring recovery charge

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Mechanical structures for electronic equipment. Connector dependent interface dimensions of subracks and plug-in units. Dimensions of mechanical structures of the 482,6 mm (19 in) series

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Oscillator tubes with anode dissipated power above 25 W. Measurement methods of power, input voltage and determination frequency

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