What did Keysight do to the 3458A?! (Patreon)

Return of worlds most linear multimeter: What has Keysight done to 3458A?!

Sign up for Keysight Live from the Lab with +1 bonus entry https://bit.ly/Keys-Marco More about 3458A https://www.keysight.com/us/en/product/3458A/digital-multimeter-8-5-digit.html Subscribe to Keysight Labs https://www.youtube.com/user/KeysightOscilloscope Keysight Benchtop PSUs https://www.welectron.com/Keysight-E36310A-Benchtop-Power-Supply-Series Want to work for a test gear & embedded tech supplier? https://welectron.com/jobs Exclusive content sometimes https://www.patreon.com/marcoreps Unsafe warning stickers https://www.etsy.com/shop/UnsafeWarnings My vid about tech in the HP predecessor https://www.youtube.com/watch?v=upTgM_S5rAQ Calibrator logs https://github.com/marcoreps/5700A/tree/master/logs 3458A vs B noise test https://github.com/marcoreps/multiinstrumentalist/blob/master/csv/3458A_vs_B_noise.ipynb Low thermal EMF scanner https://github.com/c-lan/low-temf-scanner xDevs ITRI CMS NML Taiwan article https://xdevs.com/article/si2019/ 3458A vs B INL test https://github.com/marcoreps/multiinstrumentalist/blob/master/csv/3458A_vs_B_INL.ipynb ADC clamping simulation https://tinyurl.com/yyplse8p 00:00 Intro 01:31 Calibrating standards 03:16 Accuracy 04:34 Calibrating calibrator 05:10 HP 3458A AC cal 05:43 Accessories 06:24 Basics 08:06 Noise 08:58 Math & statistics 10:02 AC volt 10:48 Ohms 12:01 Current 12:32 Ratio 13:19 So much more 14:05 Long term test 15:41 DCV Tempco 16:41 Auto calibration 18:51 Cal constants log 19:45 Linearity 21:28 Current tempco 22:15 Outside thermals 22:48 Teardown 23:16 Processor board 24:03 Analog main board 24:43 Voltage reference 25:15 Precision resistors 27:04 Misc parts 28:14 Interface board 28:27 AC board 29:04 ADC board lore 31:58 ADC board swap? 33:18 Conclusion #metrology #keysight #multimeter