This is my first post, I am from Malaysia, I purchase faulty test and measurement instruments and repair them for fun

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Today I scored a 3458A in an auction, will be getting it soon,Yay

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Pictures from the auction shows RAM Test High, the plan is to repair it. After that I will be continuing this post with my full performance verification/adjustment log. I have access to annually calibrated 5720A Calibrator and a 3458A traceable to NIST.