What To Do With Those 2SJ28's

Soundhappy,
Nelson replied to you, long ago, that remaining transistors are all (supposedly) Sony parts:
Link - https://www.diyaudio.com/forums/pass-labs/307071-2sj28s-31.html#post5462585
He also said that: „The output stage is a follower, and has a socket for different front ends“
Link - https://www.diyaudio.com/forums/pass-labs/307071-2sj28s-35.html#post5638929
So, there were changes in design, as there is no socket on the pictured board.
He also said that this iteration will be closest you could get to SIT-3.
Link - https://www.diyaudio.com/forums/pass-labs/307071-2sj28s-30.html#post5354721

Add to that:
The last round of Sony VFETs will be followers, but special and unique
It’s going to be surprise
You will be amused

So, I’m sure we all will be veeery amused. 😀 😀
 
Nelson’s answer, on question what are other TO-3 parts, was “The few remaining Sony parts”. No other were mentioned. However, after a year, maybe he has different (even more suitable) parts in mind.
Anyway, one day we will know for sure.
 

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