either),
number).
Oh yeah, I've got some Tek stuff here in the lab as well. Good products. All I wanted to say is that if a great company uses pots that isn't an endorsement for me. It may still be wrong. But you can make even a sub-optimal design reliable by chosing expensive parts such as $3 trimpots. That just won't fly in most of my designs.
rollofs..
multipliers, etc.
Most of my stuff is north of 10MHz, some is above 100MHz. No pots. But that can only be achieved if you think that way already when doing the initial block diagram. An example was a fast digitizer card the size of a large pizza that needed numerous ADCs ganged. The original one had about 20 trim-pots and was a nightmare, even in production. Service hated it. I replaced it with a design that was fully auto-cal. Number of pots: Zero. Service loved that one.
Mostly possible, always desirable. At least for my clients ;-)
environment
Depends on the standard. Mine is different :-)
reliable.
For lab equipment, maybe. For medical, mostly not. Latest after a freighter pilot had to "nail it to the runway" because of side winds or a lengthy truck ride across an unpaved road the truth comes out. Or pieces of hardware, sometimes.
Yep. And for fast stuff those dual-gate FETs plus cheap DACs come in really handy. But you need to servo those because they are drifty.
It's been over 20 years now. I still understand it ok but speaking, I don't know. A few years ago it came back after two pintjes in a pub in Rotterdam. No idea whether that that would work again. Might need four glasses this time ;-)
Sometimes I listen to Radio Nederland Wereldomroep, mostly because the German station Deutsche Welle has managed to blow it in terms of access. I can still follow the news in Dutch.