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#21 |
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Do you have Fet10 model .Please send me some link of Fet10
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#22 |
diyAudio Member
Join Date: May 2002
Location: Taiwan
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Sorry Aht !
I don't have schematic.
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Sky Chu |
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#23 |
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A picture that you had posted is really FET -10HL
![]() But now I want to know about it's voltage power supply rails. I had seen SKY CHU said "+/- 25V really ? But on www.diyzone.net told me +/- 12V ?!? Now it'll be to a mega project with 2SK389 instead of 2N5566, BS250 instead of 3N172...PCB is coming soon. Does anyone can find ERO CAP MKT1813 10uF/100V ? regard AHT |
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#24 |
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But I don't use it's power supply because I have specially supply more than which one.It's use voltage error correction by reference voltage of 78L12/79L12 flow through UA741 for compared voltage IN:OUT and used 2N3055/MJ2955 for variabled current output :-) (this concept come from hi-end DAC power supply)
I hope there is somebody interested this concept ![]() regard AHT |
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#25 |
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After I asked Mr.NP he told me that 2SK389 can instead of 2N5566 then I just to do it for a project.
Input of them are 2SK389BL (jfet) in parallel mode cascode with bipolar transistor for reduce capacitance and use transistor ccs. BS250 (mosfet) used for matcing impedance of 1st stage & 2nd stage, output stage is normally push-pull bipolar transistor such as KANEDA & JC2, I think a perfect matched parts enough for set sound quality & stability. Now I used this circuit & Aleph P1.7 in different case so don't ask me for compare both them regard AHT |
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#26 |
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I can't remember I got this schematic from...?
But it's can use with several circuit such as phono stage, preamp, DAC, etc. Now I got some problem with output capacitor filter because original supply from www.diyzone.net don't use it or they're use 1uF on preamp board ?!? regard AHT |
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#27 | |
diyAudio Member
Join Date: May 2002
Location: Taiwan
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![]() Quote:
I said "the output of extend power supply box is +/- 25V"
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Sky Chu |
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#28 |
diyAudio Member
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Does anybody tell me what's THRESHOLD ? (threshold current = ?)
Sorry for my so easy question ![]() ANALOG GUY |
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#29 |
diyAudio Member
Join Date: Aug 2002
Location: Gaithersburg, MD
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It was a company that Nelson founded prior to Pass Labs.
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Would a woodchuck bother to chuck MDF? |
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#30 |
The one and only
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I recall the schematic as follows:
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