Since we are working on a major audio project. We procured a de facto standard testing gear, Audio precision SYS-2722. It was state of the art 10-ish years ago and still quite capable these days. Stay tuned for more baseline testing and show case of performance.
Read moreBesides the crown jewel of HP 3458A 8.5 digits multimeter, HP 34420A is another top of the line metrology equipment every calibration lab cherish. Boosting a whooping 100nV resolution at finest voltage range, the 7.5 digital Nano Volt/Micro Ohm meter is yet another iconic instrument. It is noteworthy that 34420A input front end circuitry is proudly being discussed in The Art of Electronics 3rd Edition as an illustration of precision circuit technique. Unlike traditional DVM with binding posts like on 3458A, the 34420A comes with pure copper 1S LEMO plug for minimizing thermal EMF influence for highest measurement accuracy in…
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