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Old 21st August 2012, 07:29 AM   #431
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Quote:
Originally Posted by quasi View Post
This is a most impressive re-design of my humble little amp. I've checked out your site and the link to the french audio site, well done indeed. The cabinet is awesome too. Congratulations Marc, nice job.
Hi quasi glad to see your intrest to my interpretation of your work. Nbip is a relly good project for poor electronic knowledge as me. He seem to be rock solid and well documentated. I work on it quite a long time wich mass of differents routing work. Lasy Cat coatching on TSSA project bring me to rerouting completly the baord. I must update my home page since Nbip design presetd on it is the older version. Next step is to built de case (i go on store for materiel this afternoon) and wiring the amp to ste bias (150mA per side). The sound won't probably surprise me as i use every day my Nmos200 just a evolution of it...

I have an Artck in project to for sub driving.

Marc
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Old 25th August 2012, 08:13 PM   #432
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Some progress on my Nbip case building

Marc
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File Type: jpg P1040221.JPG (101.1 KB, 327 views)
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File Type: jpg P1040225.JPG (118.8 KB, 316 views)
File Type: jpg P1040213.JPG (133.5 KB, 114 views)
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Old 1st November 2012, 06:12 PM   #433
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So the Nbip3 play his first music note this afternoon. Bias set to 150mA per side, offset trimed to 0 (thanks all transistors matching). As Quasi said the Nipb is the the same as Nmos (200 for me) but better. A powerfull smoothness with a soundstage balance as i like : air between instruments and singer from rigth to left and from front to back ...Next step i unconstructed it to apply the finish
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File Type: jpg P1040432.JPG (111.0 KB, 99 views)
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Old 1st November 2012, 06:46 PM   #434
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excellent make Idefixes ...really well done !!!!the R core is lovely i presume that costs a small fortune ..
good work
Kind regards
Sakis
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Old 1st November 2012, 06:50 PM   #435
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Quote:
Originally Posted by sakis View Post
excellent make Idefixes ...really well done !!!!the R core is lovely i presume that costs a small fortune ..
good work
Kind regards
Sakis
Thanks Sakis,

At normal price yes it coast 120 ( about 140-150$) but i bougth 5 fives pieces of them (500Va 2x36V) at 29/piece on reduced prices periode....

Marc
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Old 2nd November 2012, 07:50 AM   #436
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Default pcb

posted please the pcb,
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Old 2nd November 2012, 08:53 AM   #437
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Quote:
Originally Posted by valentine146146 View Post
posted please the pcb,
This is the PCB i use : Brother of Quasi

I have some other iteration on this layout that using MPC71 for emitter resistor.

Marc
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Old 2nd November 2012, 09:48 AM   #438
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Default pcb

I see this pcb, but I want a buttom layer pcb, please
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Old 2nd November 2012, 10:38 AM   #439
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Quote:
Originally Posted by valentine146146 View Post
I see this pcb, but I want a buttom layer pcb, please
I must see how i can export a pdf file.

Marc
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Old 2nd November 2012, 06:55 PM   #440
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Quote:
Originally Posted by valentine146146 View Post
I see this pcb, but I want a buttom layer pcb, please
Don't care about Led3, C7. I don't mount them. Right value for R12, R15, R8 are schematic one i jointed here.

Marc
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File Type: pdf NBIP3_bottom_layer.pdf (59.6 KB, 137 views)
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