The Story
At the ETF 2017 in Denmark, Morgan Jones held a speech about “Amplifiers
for high efficiency loudspeakers”.
One part of the presentation was about the “Statistical Regulator” as an
excellent quiet and low noise regulator (see also in his book
“Valve Amplifiers – Fourth Edition” on pages 399 – 405, 418 – 419).
So my first “Statistical Regulator” is now on the bench for testing.

LTspice Example for download, unwrap ZIP-File into new single folder to enjoy
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Statistical Regulator