Sorry I struggled too, but found it a lot easier when I was using an oscilloscope. It is easier to view the time of one waveform
To: ElektorFormant@yahoogroups.com
From: mark@markfrancombe.com
Date: Thu, 10 Jan 2008 10:30:24 +0000
Subject: [ElektorFormant] Tuning the original formant VCO's
Hi everyone!
Im pretty sure that my VCO´s are out of tune, I dont really notice
because Im usually only using notes that a few tones apart, an octave
or two at most. But when I sat down the other day and made a 4 octave
jump C1 to C4 on my sequncer, the C4 sounded almost a whole tone out.
Checking the docs on the procedure, I gopt very confused. I was
expecting a trimpot to adjust the scaling, maybe 2 (course and fine)
but... the manual describes all manner of strange techniques..
involving voltmeters and oscilloscopes!!! I DO have a voltmenter of
course, but I simply did NOT understand the manual.
PLUS when I DID try the trimpots mentioned in the manual, not much if
anything seemed to happen...
Can someone run thru the procedure, in laymans language please??
Cheers..
Mark
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