Simple Symetrical Amplifier - Page 150

a.wayne · 24th November 2011, 08:32 AM

LC, may i suggest another thread for the group buy, better and leave here for the technical stuff.

Regards,

SOUND_Rays · 25th November 2011, 03:39 AM

Quote:

Originally Posted by Lazy Cat

Hi Sound Rays

Khmm, new sch of yours, khmm, new comments (cannot just say confirmed

):
Please repost all-corrected sch for the last inspection, regards, Andrej

LC,

Thank You for Yours really generous and patient support, my old eyes and late night brains are hardly correlated . . .

I did the changes and will skip the mission impossible, as You enlighten me the chances are really low. I found on a web a similar Mos OP of Mr. Bora design and is to be a good sounding one, maybe interesting to try that OP stage latter. For my the very first try this would be it, maybe also a conventional OP Stage for comparing the real sound difference between the two and chose the most natural one

Thank You,

Lazy Cat · 26th November 2011, 02:06 PM

What do you think about this one boys? Are we slowly getting there? Any suggestions?

Idefixes · 26th November 2011, 02:50 PM

LC will you share you routing job in a another as as GB? I don't need on board Power PSU. I have nice big smoothing Cap (22.000µF/63V), rectifying diode....

Marc

Esperado · 26th November 2011, 03:50 PM

Quote:

Originally Posted by Lazy Cat

What do you think about this one boys? Are we slowly getting there? Any suggestions?

Just one, to make-it the way we can cut the printed circuit it in two parts: power supply and amp. Several reason on my point of view: I allways prefer ti share the same power supply for both channels for stereophonic image stability , and i prefer stabilized ones, as i previously mentioned for sonic quality. Last, some people would like to upgrade their existing amp, keeping their actual power supply ?
Just my two cents.

a.wayne · 26th November 2011, 04:16 PM

Quote:

Originally Posted by Lazy Cat

What do you think about this one boys? Are we slowly getting there? Any suggestions?

If not seperate as Esperado suggest, i would suggest more room for the capacitor area...

Idefixes · 26th November 2011, 06:15 PM

Good news : the NJL4302DG i was wating for are under way. My ThermalTrack version will use couple of NJL4281DG/NJL4302DG. I put you under the latest pcb version bord. Don't hesitate to comment It.

sonnya · 26th November 2011, 06:39 PM

I would congrat on the layout, you Got the Best possible out of the single layer pcb... But even with the integrated diodes i would have My second thoughts of using only a trimmer for bias......

Idefixes · 26th November 2011, 06:55 PM

Sonnya excuse me for my sad electronic knowledge, could you explain more what you mean?

Marc

Esperado · 26th November 2011, 06:58 PM

Quote:

Originally Posted by Idefixes

Don't hesitate to comment It.

May-be this can reduce a little distortion. (see around output)

26th November 2011, 02:50 PM	#1494
Idefixes diyAudio Member Join Date: Dec 2003 Location: Mulhouse - Alsace	LC will you share you routing job in a another as as GB? I don't need on board Power PSU. I have nice big smoothing Cap (22.000µF/63V), rectifying diode.... Marc __________________ website : http://audiyofield.wifeo.com/index.php

26th November 2011, 06:55 PM	#1499
Idefixes diyAudio Member Join Date: Dec 2003 Location: Mulhouse - Alsace	Sonnya excuse me for my sad electronic knowledge, could you explain more what you mean? Marc __________________ website : http://audiyofield.wifeo.com/index.php

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24th November 2011, 08:32 AM	#1491
a.wayne diyAudio Member Join Date: May 2008 Location: Front Row Center	LC, may i suggest another thread for the group buy, better and leave here for the technical stuff. Regards,

26th November 2011, 06:39 PM	#1498
sonnya diyAudio Member Join Date: Oct 2001 Location: Denmark	I would congrat on the layout, you Got the Best possible out of the single layer pcb... But even with the integrated diodes i would have My second thoughts of using only a trimmer for bias......