[sdiy] YuSynth vco tracking

[yves usson]

Yes it is supposed to give you an average tracking over 7 octaves (but a 
good one though).
First I start by setting the V/Oct for one octave, because it is simpler 
to achieve
for one octave first. Still once it's done it won't give you a perfect 
tracking over a large octave range,
you have to refine the tracking octave per octave.
Cheers

Yves

David G. Dixon a écrit :
> I was just reading some web forum entries which led me to the YuSynth VCO
> page.  According to the instructions for tracking adjustment, one is to set
> the pitch at 55Hz at CV = 0V, then adjust T2 (the CV summer gain trim) until
> the pitch is 110Hz at CV = 1V.  OK.  Then, it says to repeat this procedure
> all the way up to CV = 6 or 7V (presumably from 0V every time).
> 
> What does this achieve?  Why would one make six or seven adjustments to the
> same trimmer?  Unless the overall tracking is perfect, won't this only
> ensure optimum tracking at the last octave adjusted?  In other words, if one
> has to make changes to the trimmer after perfecting the first (one octave)
> adjustment, then won't that first octave be off?  Is this procedure designed
> to give the best "average" tracking?
> 
> I don't get it.
> 
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