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In this video we take a look at adjusting and calibrating a Tektronix AA501. This was another unit that I got that needed some repair work. The repair was completed before I was on YouTube so Just a calibration was needed in this one. Also we found one of the main sources of noise in the lab. It was NOT what I was expecting.


** Repair exposes the Tech to mains electric and should only be done by trained personal. Errors can be fatal. **

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