TSSA - The Simplest Symmetrical Amplifier
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FdW
diyAudio Member

Join Date: Feb 2009
Location: Both feet on the ground (near Gouda)
Quote:
 Originally Posted by Esperado Cascoded Darlington, if we can afford voltage drop ? Of course, we were talking about voltage source with this "no current limitation".
I do not understand this kind of reaction. Why would cascoding make a voltage source? And why are we 'Of course' talking about voltage sources? And do voltage sources really have no current limitations? (All 3 questions are rhetorically ).

Have a look at TSSA - The Simplest Symmetrical Amplifier (post #963) this is cascoded (at the 'vas'). Neither R8 or R33 are voltage sources. If a given design fits the given problem, than it is fine with me, but if I state my opinion then it is just that 'my opinion'. I still think that (Joachims remark) was about CS's vs VS's

I'm just trying to learn a thing or 2.

Last edited by FdW; 13th September 2012 at 09:46 AM.

 13th September 2012, 09:54 AM #1122 Joachim Gerhard   diyAudio Member     Join Date: Mar 2009 Christophe, i have checked your schematic. Is R33, the bias resistor, really 8 Ohm ?
Jay
Banned

Join Date: Feb 2003
Location: Jakarta
Quote:
 Originally Posted by FdW I do not understand this kind of reaction. Why would cascoding make a voltage source? And why are we 'Of course' talking about voltage sources? And do voltage sources really have no current limitations? (All 3 questions are rhetorically ).
I think "cascoded darlington" was Esperado's continuation of the previous post about overkill approach (addressed to Joachim). "Of course" means you are correct with your statement, "but we were..." means that Esperado and Joachim were talking about that something else...

Jay
Banned

Join Date: Feb 2003
Location: Jakarta
Quote:
 Originally Posted by Esperado I presume you mean cascodes in crescendo does not fulfill the requirement ? I 100% agree.
Yes, I presumed the same thing. But I'm surprised that you're agree 100% Then I'm curious why or how you tackle the issue...

FdW
diyAudio Member

Join Date: Feb 2009
Location: Both feet on the ground (near Gouda)
Quote:
 Originally Posted by Jay I think "cascoded darlington" was Esperado's continuation of the previous post about overkill approach (addressed to Joachim). "Of course" means you are correct with your statement, "but we were..." means that Esperado and Joachim were talking about that something else...
O.k. I did backtrack down to page #80 and could not find any schema posted by Christophe (I just did it again ). I just see (in the previous message by Joachim) a reference to a schema, so if someone will re-post it, or show a link to it, then I will be a happy lurker again

Last edited by FdW; 13th September 2012 at 10:22 AM.

Jay
Banned

Join Date: Feb 2003
Location: Jakarta
Quote:
 Originally Posted by Lazy Cat So far you didn't show us anything more than just the letters on the screen.
I'm not an expert like you. Very far from that. Because I'm a beginner with very little achievement, I tend to value my works too high, even if it could be just peanuts in your eyes

Jay
Banned

Join Date: Feb 2003
Location: Jakarta
Quote:
 Originally Posted by FdW O.k. I did backtrack down to page #80 and could not find any schema posted by Christophe (I just did it again ).
Christophe's ssa-crescendo was posted in the other thread (The Simple Symetrical Amplifier). I prefer to use google than the search function of this site:

AndrewT
diyAudio Member

Join Date: Jul 2004
Location: Scottish Borders
Quote:
 Originally Posted by Lazy Cat The best SSA real world implementation so far is SSA BIGBT HP with CCS without any tiniest doubt.
Give as a link to the schematic/s.
__________________
regards Andrew T.

Joachim Gerhard
diyAudio Member

Join Date: Mar 2009
I have the schematic.
Attached Images
 schema creskendo cfb.gif (31.1 KB, 332 views)

FdW
diyAudio Member

Join Date: Feb 2009
Location: Both feet on the ground (near Gouda)
Quote:
 Originally Posted by Jay Christophe's ssa-crescendo was posted in the other thread (The Simple Symetrical Amplifier). I prefer to use google than the search function of this site: www.esperado.fr - Le crescendo revisité
O.k. then this is the one? http://www.esperado.fr/images/storie...scendo-def.gif

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