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My vid about tech in the HP predecessor    • HP 3458A - Why is this 31 year old Mu...  
Calibrator logs https://github.com/marcoreps/5700A/tr...
3458A vs B noise test https://github.com/marcoreps/multiins...
Low thermal EMF scanner https://github.com/c-lan/low-temf-sca...
xDevs ITRI CMS NML Taiwan article https://xdevs.com/article/si2019/
3458A vs B INL test https://github.com/marcoreps/multiins...
ADC clamping simulation https://tinyurl.com/yyplse8p
EEVblog John Kenny Keysight Interview    • EEVblog #1032 Part 3 - John Kenny Key...  

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