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15th December 2012, 09:24 AM
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#8111 |
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diyAudio Member
Join Date: Mar 2009
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The first Ra went into pieces shortly before he reached Barbados, the second one made it.
Well, we have time and the Paradise. Is there anything more a real man needs ? |
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15th December 2012, 09:28 AM
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#8112 |
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diyAudio Member
Join Date: Mar 2009
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I still think a folded cascode will work. Had some talk with AS about CCSs and drifting.
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15th December 2012, 11:19 AM
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#8114 |
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diyAudio Member
Join Date: Mar 2009
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This was the first MC preamp where is have seen a folded cascode :ATS MC Preamp
For my taste the value of the feedback resistor os too high for lowest noise but nevertheless very innovative in 1986. |
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15th December 2012, 12:38 PM
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#8116 |
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diyAudio Member
Join Date: May 2005
Location: Denmark
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As has has a bitter brain than I do... Think it's Like cracking The code... once you see it you understand...
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15th December 2012, 03:22 PM
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#8117 | |
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diyAudio Member
Join Date: Oct 2004
Location: At the sea front, Rotterdam or Curaçao
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Quote:
__________________
Not so much,.......if it says "ZM" in the corner. |
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16th December 2012, 10:54 AM
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#8118 |
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diyAudio Member
Join Date: May 2005
Location: Denmark
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Now where is that skihop
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17th December 2012, 11:48 AM
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#8119 |
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diyAudio Member
Join Date: Mar 2009
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This comes close :http://www2.engr.arizona.edu/~brew/e...0Amplifier.pdf
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17th December 2012, 03:47 PM
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#8120 |
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diyAudio Member
Join Date: May 2005
Location: Denmark
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I agree with Bipolars it's totally different. because there you dont have the current fighting from the self-biasing Jfets.. With bipolars you can balance the circuit.
Its also possible to use the same current source to mirror in the top and down driving currents.. just have to use different scaling resistors. A servo could then be injected there to compensate for thermal drift. |
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