This is a variant on the Aliaser project but it looks like a good one. It has two quad opamps and a couple of JFETs. It won't be small but I think it's appropriate for a 1590BB anyways. It has 5 knobs as well as a noise gate to tune out the oscillation.
Here's a link to the project:
https://sites.google.com/site/electroconducive/wolfbagger-aliaserprojectDirect link to the .pdf with all the info:
Click here
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