i need some help, I decided to go ahead and do this project. Everything was going good, until at the end i noticed that one of the little tabs had been ripped from the circuit. Now when I am hearing something through my headphones, I can hear hissing in the left hear all the time. I checked to make sure that the opamp was properly seated and everything looks good. During the project I mistakenly removed one of these and now I am getting hissing. I can still hear the music but the distortion is there. Here is a picture of the damaged circuit.