Twin T circuit Conundrum - my results garbage

I am doing the Wolfson course and built the project from lesson 5 in CL . His results are awesome my results are garbage and I don't understand why.

See the following 4 jpgs. (prof= proffessor my=me)

http://www.managecolor.com/pics/my-circuit.jpg

http://www.managecolor.com/pics/myresults.jpg

http://www.managecolor.com/pics/profcircuit.jpg

http://www.managecolor.com/pics/profresult.jpg

by keconomos
May 28, 2016

There is a subtle difference between the two circuits, take a fresh look I'm sure you will find it.

by Garrett
May 29, 2016

Hi Garrett,

Thanks for the reply. I will certainly do so. I have looked at this for hours and rebuilt the circuit several times. I actually get no sensible readings using out as the measured voltage the way the prof does. I will keep trying and post. Thanks again.

by keconomos
May 29, 2016

Keconomos, did you ever get this working? I am having the exact same problem and my analysis looks exactly like yours. I, too, have studied my design, deleted it multiple times and rebuilt it with the same results. Lynn

by Lynnsimons
August 27, 2016

Garret is right. Keep looking. Something is not on this planet (hint).

by mikerogerswsm
September 30, 2016

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