[sdiy] tuning problem with a simple cv/gate mod on a jupiter 4 : one voice with a stereo jack for cv + gate (without voltage follower)

[Benjamin Wild]

I did a simple cv/gate mod on my jupiter 4 - just for one voice with  
a stereo jack for cv + gate (without the voltage follower)
it works, but when I try to tune it, it is a 'b' - not c AND the  
tuning knob won't work..
I have a mcv4 (from doepfer) - but I can just adjust cv/octave with it..
(I can have 'b0' as base note, but I couldn't tune the last bit..)

what is the best way to have a (stable) tuned jupiter 4 voice ?

does a voltage follower help with the tuning ?

this page suggsets to use them:
http://www.maaki.com/thomas/sas/jupiter4/jp4_cv/

I did it the simple way (but with a stereo jack for cv/gate):
http://www.synthservices.com/jp4/jp4p3.jpg

With Compliments,
Benjamin Wild

wildjamin.de