• EEVblog #544 – Fluke 5450A Resistance Calibrator Teardown


    What’s inside a vintage Fluke 5450A Resistance Calibrator used in cal labs to calibrate multimeters?
    Schematic HERE
    Coto reed relay
    High Resistance measurement with a relay matrix:
    http://www.youtube.com/watch?v=fs2MfTW4o_Q
    http://www.youtube.com/watch?v=-mavHYV-H6o

    Forum HERE

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