SergeModular

Hi Guy,

So the In signal gets attenuated when you turn the knob to the plus (CW) and of course inverts when you turn it ccw.
Isn't it strange that this particular processed pot doesn't amplify like all the others do? I mean in the Gold book and other places there's written that processed pots can attenuate, amplify and or invert a cv voltage!

I always thought DC voltage (non-fluctuating) is always below zero (subaudio) and AC voltage (fluctuating) above zero (audio), but I discovered that DC voltage can be in the plus also!
Is there no correlation with the hearing sound?
I mean on the NTO, the sinus has a black ring which means it outputs between -2,5 and + 2,5 volts and triangle and saw have blue rings which indicates 0 - +5 volt. Does this mean -2,5 - 0 of the sinus is DC which as soon as it goes higher then zero, it turns into AC? Or is this nonsense!
Can you please explain this!

Thanks, yes now I understand what scaling in this context means and does! But I suspect that scaling on another funktion is more complex than that.

Which panels does your Serge contain?

Cheers,

Roel

--- In SergeModular@yahoogroups.com, "Guy" <guy@...> wrote:
>
> Hi Roel,
>
> What you've already said about the SB, is true (except for the "amplify" part).
> The lower pot (-/+) attenuates the In signal, and/or inverts it, in a gradual way.
> Turning that pot fully CW or CCW does *not* add gain; it merely passes the incoming signal completely.
> The upper pot (-5/+5) simply *adds* a positive or negative steady DC voltage to what is fed into the [attenuated] Input . So it "scales" the input either up or down (het werkwoord 'scalen' betekent o.a. omhoog- of omlaag gaan; bvbd. 'scaling a wall' betekent 'op een muur klimmen').
> Used on its own -- that is, without any signal fed to the Input -- it just puts out that steady DC voltage. In that sense, it is indeed a CV source; only, it's a *steady* and manually-controlled CV source. There's no LFO or something hidden underneath it...
>
> And that's it.
> Just a simple utility module, but nonetheless a powerful one.
>
> The most common use of the SB, is when you need to attenuate (or 'attenuvert', as it is sometimes called nowadays) a signal fed to an input which has no attenuator pot (which happens frequently on Serge modules).
> I sometimes use the -5/+5 pot simply to tune oscillators, by setting it to exact voltages (1V, 2V...), but of course the combination with the processing attenuator makes it seriously more funky.
> I use the Scaling Buffers in almost every patch.
>
> Hope that helps,
> _g
>
>
> --- In SergeModular@yahoogroups.com, "roelelec" <r.steverink@> wrote:
> >
> > Hi all,
> >
> > I want to know more about the scaling buffers I have in my Quadslope.
> > There's little information on the internet, none in the Gold book or in further Serge catalogs.
> >
> > I know you can attenuate, amply and invert a signal, due to it's processed pot and you have an offset with a range between -5 and +5 volt.
> > But what more can you further do with it?
> >
> > I thought I can meaby use it as a cv source, but that didn't work.
> > I didn't got an extra rate knob, just the same only with a broader range.
> >
> > And can someone explain me what scaling means?
> > This word has many connotations, but what does it mean in this regard I don't know?
> >
> >
> > Thanks for any help.
> >
> > Cheers,
> >
> > Roel
> >
>