[sdiy] Shielding

[harrybissell]

I don't think the shielding on the CVs would be as important as
making a stable, low noise supply for the voltages fed to the pots.

I like to use Zener diode shunt regulators on each module... so I burn
a couple mA and get a really stable 10V reference.  If you are real fussy,
you be sure to use references that are temperature stable as well...

H^) harry

MAKoot MAKoot wrote:

> Hi all,
> While working on my ASM-1 modular projekt I'm really intending to make the
> SNR as high as possible, preferably MOTM-quality :)
> So a question popped up while I was doing the wiring of the pots on the VCO
> module to make them shielded or not. Sure we are speaking of CV voltages in
> the range of appr. -10 to +10 volts, but I also have read that when trying to
> build a polyphonic synth, it really comes close in having a stable VCO.
> So would anyone know if the fact to shield all the lines to the pods is
> rubbish, or that it does make a difference? And is there maby a site or something
> somewhere with more information about avoiding noise?
>
> P.S. Could anyone maby point me to some good circuits of formant-filters on
> the net? That'd be also great!
>
> P.S.2 I actually have read that the Doepfer VCO's are worse than the
> ASM-1's. Is this really true?
>
> Thanks in advance!
> Michiel
>
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