What can I use these Burr Browns for??

[jimosity]

I got a batch of Burr Browns but I'm not sure where I could use 'em.

Can anybody give me some insight as to where I might be able to use these or what they might be good to try as replacements?
I saw a few synth projects that might use one/some of these, but I'm really only interested in guitar projects.

Here's what I've got:

3500B
3507J
3527BM
3627BM
3662KP

[John Lyons]

Look up the data sheets on them and compare them to the usual suspects used in pedal circuits.
If they match the pin outs od the typical op amps then try them out and see..er.. hear what you think

I don't recognize any of them off hand.

John