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Bird PTDA Configurable Power Sensor PTDA-NF-NF-DB9-4 350-512MHz 50/500W

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HENGSTLER COUNTER 864465

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RACAL-DANA PCB ASSY, GPIB 401820 TESTED FROM 1992 NANOSECOND UNIVERSAL COUNTER

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HP/AGILENT/KEYSIGHT 53131A-001 Optional Medium Stability Timebase FOR 53181A-001

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WAGO 750-404/000-003 FREQUENCY COUNTER 750404000003 [3]

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HENGSTLER 864 COUNTER, 6 DIGIT, 25HZ, 24 V DC

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HP/Keysight Agilent 53181A Universal Frequency Counter 225MHZ,10 digits/s

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