EEVblog #544 - Fluke 5450A Resistance Calibrator Teardown

What’s inside a vintage Fluke 5450A Resistance Calibrator used in cal labs to calibrate multimeters? Schematic: Coto reed relay: High Resistance measurement with a relay matrix: Forum: EEVblog Main Web Site: EEVblog Amazon Store: Donations: Projects: Electronics Info Wiki: Теги: fluke,fluke 5450a,fluke calibrator,teardown,resistance standard,calibration lab,reference resistor,reference standard,precision resistor,vishay,diy,review,how to,Fluke Corporation (Organization),reed relay,coto,calibration,multifunction calibrator