> I know noting... so I am asking...
> Wouldn't the ballistics vary depending on the characteristics of the mete=
r?
> Mass of the needle and moving coil ?  Spring return ? =20

Yes it does vary - which is why the early German PPM meters used mirror gal=
vanometers which have very low inertia. The later BBC PPM used specially ma=
de low inertia moving coil meters to get the rise time inertia low enough. =
Both types then used electronic decay.

> So how would you choose what a simulation looked like ?
> Gus in Denver

Standards were drawn up based on what could be done with the moving coil me=
ters, and AFAIK all the LED ones use the same standard. See the Wikipedia a=
rticle I linked to for info on the various standards used.


=20

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