On Tue, 26 Sep 2017 15:29:19 -0700 (PDT), wrote:

snip

Yeah, ok ... but what about the question re using a lower value zener
to get it away from the 'knee', especially as it's no more difficult
to do?


The zeners with the straightest knee are at 9-10v.

Ok, so again that helps because I'd go for a 9V zener to get AFA I can
from that 10V threshold and still retaining the sharpest knee. ;-)

Go look at the linked data sheets.

Too much information (variables) for me in most cases mate. ;-)

Ah, you can use the 9V zener but it only comes in SM and you have to
buy 1000. The 10V are easier to get but need a higher current ... etc
etc. I don't play chess or poker or any game of chance for that matter
(preferring FPS when I can shoot my fellow players in the face). ;-)

The whole point to me of asking those who know is they are the ones
who should all agree on a single 'best' solution. ;-)

More than one way to skin a cat? (But for that as long as it does get
skinned is good enough for me [1]).


Cheers, T i m

[1] I couldn't hurt one but I don't see the point in them ... apart
from a source of whiskers for crystal sets and guts for violins. ;-)