Category: DMMs

  • Brymen BM789: Not a Review

    Brymen BM789: Not a Review

    Almost two years ago I bought a Brymen BM789 Multimeter. And there is a lot to like about it. It has great specs, is feature-packed, feels high-quality and yet it’s well priced. But there are also some mostly minor aspects I don’t like: My main issue though and this is not limited to Brymen (hello…

  • Agilent 34401A: Repair

    Agilent 34401A: Repair

    The other day I noticed an issue with one of my Agilent 34401A’s: I measured a constant DC voltage and after a few minutes the measured value would start dropping and become unstable. Then I got curious and checked the two-wire resistance mode. Same story, maybe worse. A word of caution: High voltages found inside…

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