EEVblog #210 - Krohn-Hite DC Voltage Standard Teardown & Calibration

A Krohn-Hite MV106J DC Voltage Standard calibrator landed on Dave’s bench. What’s inside? How does it work? Is it still within spec?, and what’s all this (lack of) Kelvin-Varley and LM299 zener reference stuff anyhow? And no adventure in calibration check is complete without a visit to the TrioSmartCal lab. Service Manual with schematic: Service Теги: Krohn-Hite,mv106,mv106j,dc,voltage,standard,teardown,calibrate,calibration,lab,burried,zener,diode,reference,lm299,lm199,lm399,fluke,hp,agilent,hp3478a,3478,3478a,laboratory,nata,certification,schematic,parametric,graph,curve,temperature,compensation,kelvin,varley,divider,datasheet