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BS 9612 N020 79th Edition, April 15, 1979
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Detail specification for resistance welded seal quartz crystal units for oscillator applications - DN, DZ, DQ and DP enclosures, 50 to 125 MHz frequency range - Fifth overtone thickness-shear mode, AT-cut, for operation over wide temperature ranges (non-temperature controlled) - Full assessment level
Includes all amendments and changes through Reaffirmation Notice , October 15, 1985
Additional Comments: W/D NO S/S
Page Count:12
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Ratings, characteristics and inspection requirements.