2sd2389 + 2sb1559

ramiro77 · 5th April 2011, 02:13 PM

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 · 9th April 2011, 10:25 PM

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

jaycee · 10th April 2011, 03:41 AM

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

5th April 2011, 02:13 PM	#1
ramiro77 diyAudio Member Join Date: Jun 2010	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). I´m looking for a good darlington schematic for these without any success. What circuit would you recommend me and why?

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9th April 2011, 10:25 PM	#2
franzm diyAudio Member 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

10th April 2011, 03:41 AM	#3
jaycee diyAudio Member 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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