/diy/ - Do It Yourself

>>1746443
>The outputs should quickly die down to zero
Doesn't happen
>Only noise should be amplified, I'm guessing
No, it's a regular pattern at a frequency consistent with one or both of the input waves, though at a far higher amplitude (hence the /100). The output of one of the summers is equal to the inverse of the output of the other summer. The whole thing is burning 4.5mA too, but that's about normal for these shitty op-amps.