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

Be Sociable, Share!

    About EEVblog

    Check Also

    EEVblog #889 – Credit Card RFID Theft Protection Tested

    EEVblog #889 – Credit Card RFID Theft Protection Tested

    Do those RFID shielded wallets and bags actually work to protect your contactless credit cards? ...

    EEVblogLogo