FritzS
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Sound of Blue Danube
Sound of Blue Danube
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Post by FritzS on Apr 10, 2010 17:24:07 GMT
Hi, did anyone experiment with a diamond buffer in SCHA? Looks like this ... only Tr05, Tr06, R5, R6 are the interesting parts. SCHA use solid state current sources (not »current diodes« as wna). more about diamond buffer waltjung.org/PDFs/WTnT_Op_Amp_Audio_2.pdf
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Deleted
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Post by Deleted on Apr 10, 2010 21:32:24 GMT
Hi, did anyone experiment with a diamond buffer in SCHA? Looks like this ... only Tr05, Tr06, R5, R6 are the interesting parts. SCHA use solid state current sources (not »current diodes« as wna). more about diamond buffer waltjung.org/PDFs/WTnT_Op_Amp_Audio_2.pdfFriedrich The SC HA is different to the WNA series , and most likely sounds better too. Why complicate matters with changes that can not be done using the PCB as supplied ? BTW, AFAIK , Current Diodes are only selected FETs with the Gate and Source tied together. They give a modest amount of PSU ripple rejection. The circuitry used in the SC HA, although more complicated, is likely to outperform the simple Current Diode. Alex
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FritzS
Been here a while!
Sound of Blue Danube
Sound of Blue Danube
Posts: 1,364
|
Post by FritzS on Apr 11, 2010 18:17:28 GMT
The goal of my question are the circuits around Tr05, Tr06, R5, R6 - with other words has anyone made the little change to a diamond buffer in his SCHA? Replace the »current diodes« are not a great problem .... e.g. with LM334 I know the WNA and the SCHA are different - but the basic of the schema is not so different as you mean Mike have a WNA MKIII and he says it is a great HA too.
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