[sdiy] Buchla Lowpass Gate Switch

[harrybissell]

I think that if you check on the actual response... you will find that most
of the
usable resistance change takes place in the low mA region... so going for
higher
currents will have very little added effect.

If you are looking for "full on" by all means blast as many photons as
possible... but
I think for most lowpass apps you want the higher resistance range (from
10M -
maybe 20K ???)

H^) harry

Fernando de Izuzquiza wrote:

> Anyhow, I think it could be great to redesign the control section (and
> use it with the B or C audio section)
>
> I don't know how-to though...
>
> I imagine a circuit that puts out 0-20mA (I think max is 30mA for the
> 5C3) for 0-10V with a series LED so you have an indication if you like.
> Before that, it can be good to have an input circuit where you can +/-
> scale and offset the incoming CV.
>
> May be with a switchable expo mode. May be you can control "more or
> less expo" in an easy way.
>
> This way we can explore the cv response and have all control options
> available. Or decide a final configuration/s and build the module/s
> with the control response you like.
>
> Fernando