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16th November 2011, 08:09 PM
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#3191 |
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diyAudio Member
Join Date: Jul 2009
Location: Near Frankfurt
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Hi ZM,
The 1000uF cap, isn't it important wether we look at BA-1 or BA -2?
__________________
and the First W  tt is......a really First Class P SS Idea !
Last edited by generg; 16th November 2011 at 08:22 PM. |
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16th November 2011, 08:47 PM
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#3192 |
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diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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C208 , on BA1 FE and also in BA2 FE schematic ?
if that cap is in question - it is just part of bootstrap mechanismus (R208,R209,C208 on BA1 FE schm) . plain industrial quality cap is sufficient
__________________
my Papa is smarter than your Nelson ! tnx to  clean  thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb
Last edited by Zen Mod; 16th November 2011 at 08:50 PM. |
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16th November 2011, 09:02 PM
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#3193 |
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diyAudio Member
Join Date: Jul 2009
Location: Near Frankfurt
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Sorry that I was not more clear from beginning......
I mean C101 used in BA-2 value 1000uf In this circuit version Burning Amplifier BA-3
__________________
and the First W tt is......a really First Class PSS Idea !
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16th November 2011, 09:18 PM
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#3194 |
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diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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same approach - that cap is across bias network
some will say that his role is to bootstrap bias network - maintaining constant voltage across it ; Q113,R127,R128,P101 industrial quality cap is sufficient ; for piece of sleep - you can always bypass it with fine MKC
__________________
my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb
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17th November 2011, 04:43 AM
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#3196 |
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diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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OK
now wake up - time for school 
__________________
my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb
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17th November 2011, 05:36 AM
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#3197 |
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diyAudio Member
Join Date: Jul 2009
Location: Near Frankfurt
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You forgot, I am retired...... To verify this now I will sleep two hours longer!
Dreaming of SITs, Nelson and Aleksandar speaking to me.....
__________________
and the First W tt is......a really First Class PSS Idea !
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17th November 2011, 05:52 AM
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#3198 |
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diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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I didn't forgot that you're enjoying your free time much more than earlier ..... just joking about old habits
__________________
my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb
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17th November 2011, 05:57 AM
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#3199 |
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diyAudio Member
Join Date: Sep 2010
Location: Warsaw
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I'm talking about these caps.
F4_BA-2_comp.JPG |
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17th November 2011, 06:44 AM
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#3200 |
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diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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same purpose , different arrangement ;isolating two nodes DC wise
you can use them in both ways , and bypassing them with sweet small film cap can't harm
__________________
my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb
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