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BS 9612 N009:1977

Отменен
Detail specification for cold welded seal quartz crystal units for oscillator applications. DN, DQ and DP enclosures, 50 to 125 MHz frequency range. Fifth overtone thickness-shear mode, AT-cut, for operation over narrow temperature ranges (temperature controlled). Full assessment level — 12 стр.
ОписаниеИзмененияСсылкиВерсии

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