Hybrid amp Futterman's style (sepp)

[Stee]

to have a pure gain
you need the same devices...
see schematic🙂

 

[Stee]

JLH is a solid state Futterman's style

does not exist to my knowledge no detailed analysis of its operation
but can works also for Mosfets

Google Traduttore

my variation is a local Feedback
and take name "UAS" Universal Amplification Stage

 

[jfetter]

"
Hybrid amp Futterman's style (sepp)
to have a pure gain
you need the same devices...
" Stee

interesting comment Stee. Maybe dissimilar parts 'poison' each other.
I like that term 'imprint'.

Have you noticed that none of the assumed gain equations for true Sziklai CFP circuits measure correct in reality?

So I'll try your circuit (with my mods) in hybrid output section.

The pre is tested now.
http://www.diyaudio.com/forums/solid-state/290026-simple-discrete-sziklai-pre.html



Cheers