3 digit? Meh. That's not far off analogue meter accuracy ![Evil >:D](https://www.eevblog.com/forum/Smileys/default/xevil.gif.pagespeed.ic.tdrs7Uj5gu.png)
My 34410A is currently showing agreement with my Transcell voltage standard (as measured by a PTB hp3458a that had been calibrated the previous day) to 6 digits (9.999577 vs 9.999571).
I wonder how long that will last? ![Sad :(](https://www.eevblog.com/forum/Smileys/default/xsad.gif.pagespeed.ic.L3FGyzQrjB.png)
I learned, perhaps way too late, that when you're doing normal electronic design, that the odd 10% here and there doesn't matter that much.
Booorrrrriiiiinnnngggg!
I learned very early on that the
real trick is to get predictable operation with components that show hideous parametric variation, transistor h
FE V
be being the canonical examples. And then to extend that to system-level behaviour.
Of course I never selected a resistor's value based on how pretty the colour code looks. Oh no, never ever ever.
Nor have I ever checked a PSU rail's voltage by merely noting how fast an analogue meter
starts to move.
The concept of measuring relative
charge using an slow moving
ammeter is completely foreign to youngsters.