Doepfer

So far I've just played with it by ear. 

But I'm curious if anyone has already worked out tables or a formula to center any one of the 
BP filters on a particular Hz. frequency.  

I was kind of annoyed the that doc for the A-127 reprints a table from the Allen Strange book 
but doesn't list any approximate VCF Freq. knob settings nor voltage amounts to set the filter 
to those frequencies.