transistors 2sa970/2sc2240

pdul · 10th June 2009, 07:32 PM

HI

Do anybody have a suggestion for a better transistor pair for general amplifier use than 2sa970/2sc2240 rails:+-15v ?

Hurtig · 10th June 2009, 08:08 PM

It is very hard to say, as long as you do not tell anyhing about the application.
You could try the old BC550B/BC560B. These are not know as special audio transistors, and that may actually be the reason why they sound very good. Many special "Audio Grade" components, are not really that good.

2SA970/2SC2240 is well suited for audio, but do some listening test on the "BC5xx" devices... This really is the only way to tell how they sound in your application. This can not be written in a datasheet, even though many audio designers choose the best sounding devices only by reading datasheets

. That's why many new audio products perfoms that bad in listening tests...

pdul · 10th June 2009, 08:14 PM

Since you are from Denmark you probably know the air from high fidelity from 92. I was wondering about some modifications of that

pooge · 11th June 2009, 01:33 AM

Quote:

Originally posted by pdul
HI
Do anybody have a suggestion for a better transistor pair for general amplifier use than 2sa970/2sc2240 rails:+-15v ?

Better in what way?
Those are pretty good transistors.

pdul · 12th June 2009, 01:58 PM

I have been watching a lot of discussions about which trannies sounds better or worse, so just to hear some oppinions, lets say for the gainstage in a line amplifier.
What about for instance 2sa1038/2sc2389 or 2sa1085/2sc2547
or maybe 2sa1016/2sc2362 in other words i want you to pour
some of your wisdom

VS · 14th June 2009, 02:48 PM

Quote:

Originally posted by pdul
I have been watching a lot of discussions about which trannies sounds better or worse, so just to hear some oppinions, lets say for the gainstage in a line amplifier.
What about for instance 2sa1038/2sc2389 or 2sa1085/2sc2547
or maybe 2sa1016/2sc2362 in other words i want you to pour
some of your wisdom

Well, what's your problem ? I have plenty of them that I could sell

pdul · 14th June 2009, 06:54 PM

VS.
If i had a problem buying stuff, I would probably try Ebay instead.
But anyway thanks for the offer

VS · 14th June 2009, 06:56 PM

Quote:

Originally posted by pdul
VS.
If i had a problem buying stuff, I would probably try Ebay instead.
But anyway thanks for the offer

Ok, fell free to contact me, i have 2sc2240 and 2sa970 and others.

Regards,
VS

pdul · 14th June 2009, 06:59 PM

Well I gues that I have to work my way through a lot of trannies and harvest my own experiences.
"TO GO WHERE NO MAN HAS GONE BEFORE"

10th June 2009, 07:32 PM	#1
pdul diyAudio Member Join Date: Jan 2009	transistors 2sa970/2sc2240 HI Do anybody have a suggestion for a better transistor pair for general amplifier use than 2sa970/2sc2240 rails:+-15v ?

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10th June 2009, 08:08 PM	#2
Hurtig diyAudio Member Join Date: Feb 2005 Location: Denmark - Århus	It is very hard to say, as long as you do not tell anyhing about the application. You could try the old BC550B/BC560B. These are not know as special audio transistors, and that may actually be the reason why they sound very good. Many special "Audio Grade" components, are not really that good. 2SA970/2SC2240 is well suited for audio, but do some listening test on the "BC5xx" devices... This really is the only way to tell how they sound in your application. This can not be written in a datasheet, even though many audio designers choose the best sounding devices only by reading datasheets . That's why many new audio products perfoms that bad in listening tests...

10th June 2009, 08:14 PM	#3
pdul diyAudio Member Join Date: Jan 2009	Since you are from Denmark you probably know the air from high fidelity from 92. I was wondering about some modifications of that

12th June 2009, 01:58 PM	#5
pdul diyAudio Member Join Date: Jan 2009	I have been watching a lot of discussions about which trannies sounds better or worse, so just to hear some oppinions, lets say for the gainstage in a line amplifier. What about for instance 2sa1038/2sc2389 or 2sa1085/2sc2547 or maybe 2sa1016/2sc2362 in other words i want you to pour some of your wisdom

14th June 2009, 06:54 PM	#7
pdul diyAudio Member Join Date: Jan 2009	VS. If i had a problem buying stuff, I would probably try Ebay instead. But anyway thanks for the offer

14th June 2009, 06:59 PM	#9
pdul diyAudio Member Join Date: Jan 2009	Well I gues that I have to work my way through a lot of trannies and harvest my own experiences. "TO GO WHERE NO MAN HAS GONE BEFORE"

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