hi,

thanks for the responses.

the vco's tracking seems to be fine, i connected the pitch cv to it
without the a170 and everything was accurate over several octaves.

the patch yesterday had the output of the slew limiter - the upper
section, by the way - going to two destinations. i reduced this to a
single connection to the vco's cv1 input. this removed some of the
voltage drop, so that i'm able to compensate with the tune offset (so
no more brass parts). however, each octave is about 20 cents flat -
not really a huge problem with one octave, but with three octaves i'm
more than a quarter tone flat.

i don't have the precision adder, so i can't try out that solution.

does noone else have this i tried it with three a170's - i discovered
another one in the drums rack which i`d forgotten :) - and got the
same result. i'm not particularly sensitive about intonation, i like
it dirty, but a quarter tone is, well, TOO dirty :)

stu