6922 sepp with Balanced Gains

[Stee]

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here you can find a version of Aikido
in my picture a modification
where cathode have anode gain and viceversa

[Stee]

probably to have exactly the same gain between two rails @ zero NFB
need a SRPP before

[Stee]

to solve the problem of GND
also good for headphone OTL stage

[DF96]

In post #2 that is not an SRPP, but an active load. SRPP takes output from the upper cathode, not the lower anode.

The result is not a verson of Aikido, because you have lost the main point of Aikido - that the signal currents balance at the HT supply.

[Stee]

but where is the news?
using three identical devices
with the same bias
you get the same gain
on both branches without feedback