[sdiy] Painting up the ugly LM324 for yet another prom.

[Scott Nordlund]

> >If you have an audio circuit using the LM324, sound quality
> >can be improved a lot by conencting a 6.8K resistor between
> >the output and the negative supply. This biases the class B
> >(no, not class AB) output stage into class A and the open
> >loop distortion drops by a huge amount.

That's usually a slightly dubious and often-misapplied analog
designer and "audiophile" trick. But when you're dealing with
the LM324, I don't think you have to worry too much about 
accidentally making things worse.