i can't seem to measure the resistance of any of my attys/cartos with the multimeter i have here (picture attached). when i touch the red probe to the center and the black probe to the threads, it reads as if the probes are touching each other (0 ohms). can't figure what i'm doing wrong. halp! maybe some pictures to show the proper way to do this? or a video? or some links to a video? thanks in advance..
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