Super Sanken Final Stage "Tauro"

[Steef]

Hi
my last project is an hybrid with 2SA1215 and 2SC2922
drived from a copule of comlementary hexfets IRFP240/9240
(after evaluation will be IRFD110 & C)

the output is with big capacitors (20.000uF) just to leave DC
(this balanced solution don't create emphasys on music)

in this particular design i have put two bipolar devices instead
single one (in AB bias) because need Class A sound without bridge

there is an "auto-biasing" between a copule of complementary
transistor in this configuration, so need just a resistor base to base

----------> I don't know if works <---------------------
is a project until this WE

this double bipolar ( renamed Tripolar ) is a PNP+NPN
with common collector

so is like a self-biasing device
that works (may be) in phase
as a variable resistor ( signal modulate value )

input satage with common source
split phase in two opposite rail
without feedback and mirror

Regards

Stee has attached

[Steef]

finest drawing attached