all Gain Stages AMP

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hello

see this new project with MPSA transistors
and Voltage gain also in final devices as IGBT
 

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looks like it will work well
maybe even be very good
.. depends on your used transistors and current levels

2 resistors serve no good purpose:
those two at most far right = from POWER Transistors collectors.
The only thinkable purpose, that they may do,
is to reduce Max Output current = some protection.
Other wise these 2 resistorswill only make output stage
work more BAD

Lineup regars
 
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