2sd2389 + 2sb1559

[ramiro77]

Hi people!
I have a lot of these transistors.
I want to build a stereo amplifier with a pair of these for each channel (i mean one 2sd2389 and 2sb1559).
I´m looking for a good darlington schematic for these without any success. What circuit would you recommend me and why?

 

[franzm]

Tvicol (vicol audio : high-end amplifiers & audio tuning) designed an Quad 405-like amplifier with Darlington output stage. The schematics were published on Forumul electronistilor • Prima pagin?
Forumul electronistilor • Vezi subiect - QUAD 405 - Proiect comun cu userii.
Tvicol is also present on diyaudio.com with this http://www.diyaudio.com/forums/solid-state/124348-quasar-quad405-reborn-design.html
Hope I could help
Franz

 

[jaycee]

You should be able to sub these into many designs - the only difference is that you do not need driver transistors.