"Fred Bartoli"

The max. deviation from the straight line is a very complex concept.
Probably they ment the THD of 0.25%

...which then is the rms deviation from straight line.
Not a much simpler concept I'm afraid :-)



** The world recognised, published authorities on this topic are messrs:

Dave Dee, Dozy, Beaky, Mick and Titch.

Their seminal 1966s work on "linearity " was mischievously entitled " Bend
It ".

Not another word needs to be said .......





......... Phil