Russian standards PDF
Semiconductor UHF mixer and detector diodes. Measurement methods of output noise ratio
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Cathode ray reference line gauges. Types and basic dimensions
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Base ceramic indoor insulators for systems with nominal voltage over 1000 V. Types, basic parameters and dimensions
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Semiconductor emitters. Methods of measurement of radiant intensity and radiance
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Magnetic sound records on 35-mm perforated film. Dimensions and location of magnetic sound records and magnetic heads. Technical requirements
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