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Silly Zero VCO question...

Silly Zero VCO question...

2006-07-22 by legion01x

I was messing with a ZeroOsc for the first time tonight and freely
admit i don't know much about the science of this beast but I do like
it's features and sounds. That said I noticed the unit frequently
would go positive and the red light on the top would come on. However
there was no patch or combination I did that made the green (negative)
light come on. This leads me to wonder how little do I know about this
creature or is it possilbe the green light is malfunctioning somehow?

Can anyone tell me a simple setting or patch which would allow me to
verify both the positive (red) and negative (green) top LEDs are
working properly?

Any help appreciated.

As for a quick review, all I can say is "wow" about this piece.
Another Cyndustries triumph of the left brain!

D_

Re: Silly Zero VCO question...

2006-07-22 by tuninghead

Hello D_

The negative (green) LED will come on when the sum of all linear
modulation is negative.  That means you must overcome the linear bias,
which is positive, with whatever your modulation source is.  If you
put the bias switch in its center position (off) and apply a sine wave
to the linear mod input, you should see both LEDs glow equally
brightly as you turn up the modulation.  This is because the
modulation is now centered at zero volts.  The modulation index is now
infinite with this setting, a subject few care to discuss.

The negative LED will also come on more easily at low bias as opposed
to high bias.  If you have never seen the green LED, you have also
never heard all the ZO can do!

--Mark Barton


--- In The_Cyndustries_List@yahoogroups.com, "legion01x"
<legionyahoo@...> wrote:
Show quoted textHide quoted text
>
> I was messing with a ZeroOsc for the first time tonight and freely
> admit i don't know much about the science of this beast but I do like
> it's features and sounds. That said I noticed the unit frequently
> would go positive and the red light on the top would come on. However
> there was no patch or combination I did that made the green (negative)
> light come on. This leads me to wonder how little do I know about this
> creature or is it possilbe the green light is malfunctioning somehow?
> 
> Can anyone tell me a simple setting or patch which would allow me to
> verify both the positive (red) and negative (green) top LEDs are
> working properly?
> 
> Any help appreciated.
> 
> As for a quick review, all I can say is "wow" about this piece.
> Another Cyndustries triumph of the left brain!
> 
> D_
>

Re: Silly Zero VCO question...

2006-07-22 by legion01x

THANK you! I woke up this morning and ran downstairs like it was
christmas to try this and you are 100% correct and everything is
"green" and ready to go.

Thanks!



> The negative (green) LED will come on when the sum of all linear
> modulation is negative.  That means you must overcome the linear
bias, which is positive, with whatever your modulation source is.  If
you put the bias switch in its center position (off) and apply a sine
wave to the linear mod input, you should see both LEDs glow equally
> brightly as you turn up the modulation.  This is because the
> modulation is now centered at zero volts.  The modulation index is
now infinite with this setting, a subject few care to discuss.
> 
> The negative LED will also come on more easily at low bias as
opposed to high bias.  If you have never seen the green LED, you have
also never heard all the ZO can do!
Show quoted textHide quoted text
> 
> --Mark Barton
> 
> 
> --- In The_Cyndustries_List@yahoogroups.com, "legion01x"
> <legionyahoo@> wrote:
> >
> > I was messing with a ZeroOsc for the first time tonight and freely
> > admit i don't know much about the science of this beast but I do like
> > it's features and sounds. That said I noticed the unit frequently
> > would go positive and the red light on the top would come on. However
> > there was no patch or combination I did that made the green (negative)
> > light come on. This leads me to wonder how little do I know about this
> > creature or is it possilbe the green light is malfunctioning somehow?
> > 
> > Can anyone tell me a simple setting or patch which would allow me to
> > verify both the positive (red) and negative (green) top LEDs are
> > working properly?
> > 
> > Any help appreciated.
> > 
> > As for a quick review, all I can say is "wow" about this piece.
> > Another Cyndustries triumph of the left brain!
> > 
> > D_
> >
>

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