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Old 5th April 2011, 02:13 PM   #1
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Join Date: Jun 2010
Default 2sd2389 + 2sb1559

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).
Im looking for a good darlington schematic for these without any success. What circuit would you recommend me and why?
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Old 9th April 2011, 10:25 PM   #2
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Join Date: Dec 2010
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 QUASAR a QUAD405 reborn design
Hope I could help
Franz
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Old 10th April 2011, 03:41 AM   #3
jaycee is offline jaycee  United Kingdom
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Join Date: Apr 2004
Location: Norwich, UK
You should be able to sub these into many designs - the only difference is that you do not need driver transistors.
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