Limiting bandwith of PRR Vari-Mu's op amp? (solved)

I've got a problem with my Vari-Mu. My converter (Lynx Aurora) puts out a lot of high frequency (above audio band) noise at higher sample rates. At 176 khz this leads to the Vari-Mu producing intolerable levels of noise within the audio band. This happens with a 5532 and a lot more with an LM6172 (which sounds much better there, BTW). I've added local power decoupling caps (100nf), but this doesn't solve the problem. I guess I'll have to limit the bandwith of the op amp so it doesn't get excessive levels above 35 khz or so. How would I best go about that? Thanks!

Worked it out (or rather, the internet did). Cap across the feedback resistor did the trick!

Cool, what size cap, like 20p?
DAC out of band noise is something I was thinking about lately. I was gonna try inductors and such, to see what would be the most effective way to eliminate it...
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I used 1.5 nf caps. This translates to a roll off frequency of ca. 48 khz, which seems like a good compromise. Definitely cured the problem. The compressor still is a little noisy, but this seems to be an issue of the tube side.