PCB for good AMP

[DariusM]

Hello.
I am drawing PCB by this scheme: http://www.elektronika.lt/_sys/storage/2004/05/10/350wmos.gif

And when I draw, and show to my fried, he said that this is not good PCB, because is some mistakes... And amp doesn't work good in 50 - 100kHz...
Also he said, that, somewhere he saw this amp PCB... If somebody has this amplifier (amp) PCB, please send my, if you're haven't, I try to repair my mistakes...

Thank you very much.

My e-mail: dmsaudio@yahoo.com

 

[peranders]

I'm afraid, your server is painfully slow.... can't see what you mean.

 

[davidsrsb]

It looks like a typical high feedback design with complementary vmosfet output. As for errors:
1/ the O/P devices will need to be matched
2/ polarised ecap in negative feedback with undefined polarity
3/ I hate fuses (just 5A!) in the O/P device supplies
4/ No other protection
5/ No Zobel network

 

[DariusM]

You want to say that in scheme is some mistakes, or not?
Just finished my PCB for this amp. it looks beter than old.