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27th January 2012, 05:40 PM
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#522 |
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diyAudio Member
Join Date: Dec 2006
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 and that 's why i was going crazy with my toroids hum and buzz  few hours later , i confirm what michael say , the source degeneration with no bypass cap sounds less magical, clean but constricted tomorrow i will put some 47000uf on it
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French is not a crime. |
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27th January 2012, 07:10 PM
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#525 |
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diyAudio Member
Join Date: Jul 2009
Location: Near Frankfurt
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oh I feel honored "mon ami....."
take a 10k pot and go with the outer pins to the 9V battery, the middle goes to the 47k or 10k of the gate and of course you have to connect the + of the battery with the ground of the amp to go nine volt lower you have to measure the output at the middle of the pot and start with 9V to be sure no "PUFF" will happen, later you choose the 2,x Volt...but you know this all... look at Mikes picture.....nearly the same.... 
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and the First W tt is......a really First Class P SS Idea !
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28th January 2012, 08:41 AM
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#527 |
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diyAudio Member
Join Date: Dec 2006
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 this morning , i have finished V.3 of my sit with Fig 11 ,swapp the 10uF input cap and bypass the 1ohm source resistor with 47000uf epcos and 470uf MKP bypass ... the amp is now simple at max and sounds much better than my version with negative bias. the magic is here again even more relaxed and refined , simply fantastic pure sound... i don't understand why , perhaps i'm more in the sweet spot for my speaker noww than before or it is the input cap ? or my negative bias who was making problem. so for the ones who wants to go with fig11 directly i can confirm it works very well but you must bypass the source Res with good stuff to have the magic sound 
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French is not a crime. |
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28th January 2012, 10:31 AM
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#528 |
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diyAudio Member
Join Date: Jul 2009
Location: Near Frankfurt
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wonder of wonders....
merveille des merveilles..... wunder über wunder..... this little amp gives everybody his personal experience......  perfect...... 
__________________
and the First W tt is......a really First Class PSS Idea !
Last edited by generg; 28th January 2012 at 10:33 AM. |
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28th January 2012, 10:34 AM
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#529 |
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diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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not me Bubba ........
it's too simple ...... nothing to Babelfish
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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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28th January 2012, 10:41 AM
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#530 | |
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diyAudio Member
Join Date: Jul 2009
Location: Near Frankfurt
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SITMANIA
Quote:
Babel will come for you....... and fish too ......
__________________
and the First W tt is......a really First Class PSS Idea !
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