quick 3320 filter Q

[Andrew Schrock]

All, 

After liking the paia filter I acquired quite a bit, I built a 3320
filter, and am getting some odd results with applying c/v to the input.
The c/v seems to be inverted, ie if I take c/v out from my sh-101 I get
(approximately) a descending scale as I go down the keyboard, or if I take
an output from an envelope generator it is reversed. The schematics and
CEM notes seem to dictate I'm doing everything kosher, and the VC res
works as normally expected. (not inverted response; 0 to 5v gives min to
max res) 

The circuit is basically straight out of the CEM 3320 notes 'LP filter
with VC res.' on p.2, done with a bit of consulting of tomg's 3320 LP 
filter design. Anybody know off the top of their heads if theres
anything obvious I'm missing? 

Sorry for the rather lame question, but this has been irking me all night. 

Andrew

| Andrew Schrock							|
| Network Programmer, Synthesizer and electronic music enthusiast	|
| aschrock at cs.brandeis.edu						|