TL071/TL081

[Jim Patchell]

    In my opinion, the two are pretty much interchangeable.  The 07x seriers
has a slightly quieter front end, and I believe the output stage is biased a
little heavier to give better distortion.  In general, I have used the two
interchageably.

    -Jim

Tim Curtis wrote:

> Can anyone really explain to me what the difference is between these two
> op-amps?
>
> One of my MiniMoog Oscillator boards was diagnosed as having a bad
> TL081.  I replaced it with a TL071because I have some of those around.
> Nada.
>
> Is this normal?  I was always told that the two were pretty much
> interchangeable.
>
> Or is it just a problem with them in that circuit?
>
> Tim