Nakon razmisljanja najblizi sam da u skoroj buducnosti malo ekperimentisem sa sledecom schemom uz nesto promenjene aktivne elemente
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pri cemu autor za ovaj UGS kaze:
To go straight to the conclusion, I must confess that (for me) this version is by (a lot of) far superior to the mosfet version, cascode or not.
Ultimate speed, added life to the music, truth everywhere, instrument location, dynamics, widening...
Wowwwww... What a beast !
And from the technical point of view, it's a pleasure. I love the elegant simplicity of the design.
And no more need of common-mode feedback resistors... Provided that the transitors are thermally coupled,
it sticks to 0V, typically 0.1 to 0.2mV, both relative and absolute, without any parts matching.