My new design of AD1865NOSDAC opamp output

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The AD1865NOSDAC, OUTPUT of my new design is an OPAMP

The TUBE edition of the ex- design of 1865 because the signal handle not good, I abandoned it, and afresh designed the OPAMP edition of 1865 NOSDAC.
Its LPF the part very is not good to do.
Now again my headache of is, if it want to hear to rise good to listen, then frequency demand from 14 KHZs start get downing, if to 20 KHZs start get downing, and that is what very not good to listen,
Part of and big contain good suggestion in the LPF?
I design the following diagram of the adjustment's LPF similar, this part of electric circuits spend me good long hours come adjusting to just do out.
An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.
 
LPFThe LPF part is a nether diagram paper
 

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georgehifi said:
what i want to know how the **** did you post half a meg of photos on one post when the limit is 104kb.
Let us in on how you did it.

Cheers George


Use that little mouse of yours, place the cursor on any of the pic...then do a right click, select 'properties' from the drilled down table....and then see the item 'address'...and u will see that the attachment links to the pictures' server. so the attachment actually links u back to the url of this storage server....not an actual attachment of files on this forum server.
 
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