[sdiy] Dropping Control Voltage an octave.

[DTK]

I was looking into this a while back, and I found that it's not quite as
easy as that, unfortunately. I can't remember exactly why - something
related to the pitch CV being too close to 0v when the lowest key was
pressed?? Or maybe that's not it at all... anyone who knows please chime
in...

Anyway, I took a different approach and tuned the oscs down an octave.  That
extends my lower range, but it does take away from the high range.  THat's
not really a problem for me, but if you play from the keyboard it might be
an issue.

It was easy to do, there is a little bit of component switching but nothing
heavy.  I did a write up for it, which P.G. was kind enough to host on his
site:

http://www.geocities.com/gallomagnetix/mg1x.html

Look for the VCO Frequency adjustment link and see if that'll work for you

HTH

D

> tsheets at saturn5.com wrote:
>
> > Hi, I want add a switch to my Moog MG-1 to drop the keyboard an
> > extra octave.  This should be easy, right?  Its standard 1V/octave
> > control voltage.  Any tips on the easiest way to do this?  Probably
> > just some sort of resistor divide or something?
> >
> > -troy