RC4739

[*Star Project]

Hi...

I was just wondering if there is any small nice
little filter and effect circuits based around
the low noise RC4739 op Amp? The reason is mainly
that i needed some for the midwest analog delay
circuit so I went to my local store who had a surplus
sale on them. 25 for under 2$ is a pretty good deal
wouldnt you guys say. By the way can I have a tip
on where to get a hold of a 560 Ohm PTC resistor or 
at least one that is around 560 Ohm.

/ Andreas