NBS reference volt

NBS reference volt: первичный эталон вольта, принадлежащий Национальному бюро стандартов (США)

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Decibel — This article is about the ratio of measures. For sound or acoustic level, see Sound pressure. For other uses, see Decibel (disambiguation). Attenuation chart of an RG 6 Coaxial cable, measured in decibels per 100 feet of cable The decibel (dB) is … Wikipedia
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