On Thu, 21 Sep 2017 16:54:07 -0500, Foxs Mercantile
wrote:

Sigh....

The simple answer is put a 62K 5% resistor in series with the meter.
It's read about 4% low (240 uA instead of 250 uA.)

Ok, so with our source at 15V we get 240 uA and ~FSD on our meter.
That's 14.88V across the resistor and 0.12V across the meter,
therefore the meter is ~500 ohms?

At 10V we get 2/3 of 240 uA (160uA) and so our voltage across the
meter is now 0.0256 (~1/5th of FSD) and so the meter will read 1 volt
and not 0?

You wanna get a little closer? put a 100K and a 150K in parallel.
Wanna make it adjustable? Put a 100K trimpot in parallel with a 180K
resistor.

The problem is that the voltage across the meter will fall in
proportion to the voltage across the entire network, not just across
the meter component (which is why I ruled it out in my second post).
;-)

This ain't rocket science folks.

Maybe not but can appear as such to some (I think). ;-)

Cheers, T i m