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-   -   FYI: Linkwitz has updated his LM3886 design (http://www.diyaudio.com/forums/chip-amps/54957-fyi-linkwitz-has-updated-his-lm3886-design.html)

akunec 7th April 2005 08:48 PM

FYI: Linkwitz has updated his LM3886 design
 
FYI: Linkwitz has updated his LM3886 design

Adam M. 7th April 2005 09:42 PM

Link? I checked my bookmark to his amp and it is still the one from 2000

CornelisJ 7th April 2005 10:04 PM

Can you give a link?

Davey 8th April 2005 04:41 AM

http://www.linkwitzlab.com/images/graphics/3886amp.gif

I'm not sure what he changed, but there is a date of 3-27-05 noted on the bottom so he's updated it somehow.

Cheers,

Davey.

demogorgon 8th April 2005 09:22 PM

I dont have the old one, but i cant see what have been changed..

i remember looking it over, trying to understand the reason for the ekstra parts..

Davey 8th April 2005 11:38 PM

Here's a copy of the old one:

http://www.woodartistry.com/linkwitz...cs/3886amp.gif

The only difference I see is the removal of the capacitor across the feedback resistor and the capacitor across the input terminals.

Davey.

sek 9th April 2005 12:55 AM

This is quite interesting, as I have integrated the input (RFI) filter capacitor (but not the feedback bypass cap).

Would be good to know SL's motivation to no longer recommend them. Perhaps he found them to be unneccessary and thus did the engineering step to leave out what's not required. ;)

Sebastian.

PS: One can actually see where he used the eraser. ;)

wingwing 10th April 2005 06:13 PM

because lm3886 is not unity gain stable

... It was a SL3886 problem which carlosfm pointed out few weeks ago

wingwing 10th April 2005 06:32 PM

By the way....I love SL's website so much. Very informative


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