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Fluke 5200A AC Calibrator Update

Posted by Scott on
I have been working on the fluke some more, I have been going through its basic calibration procedure (doing a video it of course).

I can see that TP5 on the oscillator control board is noisy, so this could be a clue to where the noise is originating.

As it is a closed loop system, I will need to inject my own signal at some point of the circuit to see if the noise is before or after that point.

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