Hi, everyone. I got me a 2nd hand scope that seem well taken care of. At least from ny meagre knowledge of scopes. Its in the original box with manual included. So i try to calibrate it exactly as the manual suggests it. But i dont know where te connect the -ve clip on the probe. Ive attached a pic of the 2v p - p signal. It does not seem right to me. Can anyone shed some light here, please.
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