[sdiy] Vactrol'ed Moog Parametric !

[Scott K Warren]

I'd buy two! -- skw


On Nov 27, 2007, at 1:24 PM, JH. wrote:

> I made some simulation of the Moog Parametric EQ, and it's an  
> interesting EQ
> indeed.
> Complete with side effects, like an ever so slight boost of the  
> topmost
> audio range when you're setting an attenuation in the bass range ...
> I'm convinced it's something special, now. :)
>
> As for the potentiometers: We could emulate them with vactrols, and  
> adjust
> the different control law in the CV domain.
> Same with the reverse audio frequency pot.
>
> So, what about a circuit that has the charcter of the Moog ParaEQ,  
> plus
> Voltage control over frequency and Bandwidth of each band, plus the  
> nice CV
> slewing Vactrols are famous for?
>
> Would that make an interesting PCB of its own?!
>
> JH.
>
>
> ----- Original Message -----
> From: "Florian Anwander" <Florian.Anwander at consol.de>
> To: "megaohm" <megaohm1 at gmail.com>
> Cc: "JH." <jhaible at debitel.net>; <synth-diy at dropmix.xs4all.nl>
> Sent: Tuesday, November 27, 2007 9:42 AM
> Subject: Re: [sdiy] Re: Moog Parametric?
>
>
> Hi P.
>
>>> Buy a dual 500R lin pot of a brand that can be opened, and a  
>>> single 50k
>>> log
>>> pot of the same brand.
>>> And then it's time for transplantation!
>>> (I did this once with a pull pot that had the wrong value.)
>> Ummm.... BRILLIANT!
> I did this too, but the one I modified was not that reliable as the
> usual pots. The transplanted started to scratch after two years, while
> the unmodified lived fine for ten or twelve years (it was a crossfader
> for live usage).
>
> Florian
>
>
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