It looks like it should work, but the emitter resistors in the current mirror are different. That will cause some DC offset.
that helps...if things are kind of sane, then there's a big negative voltage on the base of the right hand MPSA42. Also, probably enough sustained negative voltage that 470 uF cap may have been damaged, and you've probably exceeded the allowable Vebo for the right-hand MPSA42.
A few quick tests might help narrow this down...
What is voltage on base of right side MPSA42?
What is voltage across 1.8K in collector of left side MPSA42?
What is voltage across 1.8K in collector of right side MPSA42?
What is voltage across 1.8K in base circuit of MJE340?
A few quick tests might help narrow this down...
What is voltage on base of right side MPSA42?
What is voltage across 1.8K in collector of left side MPSA42?
What is voltage across 1.8K in collector of right side MPSA42?
What is voltage across 1.8K in base circuit of MJE340?
50V rails is too much for a single pair of output devices, atleast for 4ohm operation.
Unless its only for 8 ohms or more, add ATLEAST a second pair of output devices!!
Unless its only for 8 ohms or more, add ATLEAST a second pair of output devices!!
I understood that the simulation works OK, but the actual amplifier has 10V DC offset at the output.
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