Interessant schematic, Apex...
Shouldn t Q6 base rather go to Q3 collector
and Q5 base to Q4 collector ?...
Good catch but I think you have the numbers swapped back to the way it is now. As it is the feedback is positive. I'm sure Apex built it the right way or it wouldn't work.
wich 2sk2145 to use,with suffix BL, Y or GR?
i am in a process of ordering parts for this amplifier,that is why i am anoying...
i am in a process of ordering parts for this amplifier,that is why i am anoying...
Use GR or BL
AC voltage after rectification you can go with 40V AC after rectification 56V DC with filter cap will increase to 60 +/- is 3 pairs so about there even with 38V AC will also work I did tested many times on simulation sorry for the bad drawing
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as longer the application is for audio yes you can NPN PNP I use MJL3281 NPN and MJL1302A from On https://www.onsemi.com/pub/Collateral/MJL3281A-D.PDF
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