[sdiy] Seeking examples for Wed lecture

[Yves Usson]

Hi Aaron

Concerning examples of Sallen-Key OTA filters, Osamu Oshuyama as some  
interesting desin on his
site :
http://www5b.biglobe.ne.jp/~houshu/synth/

the S&K filter :
http://www5b.biglobe.ne.jp/~houshu/synth/VcSvf01a.gif

Cheers

Le 28 févr. 06, à 07:26, Aaron Lanterman a écrit :

>
> I'm going to show Rene's "late" MS-20 style LPF - but I'm also looking  
> for the original LM13700 based one (along with the HPF) somewhere...  
> all I can find is schematics of the "old" MS-20 style filter, with the  
> weird Korg-35 chip...
>
> ...also I swore I had downloaded a Korg Delta schematic from  
> somewhere, but I can't find it now - it was interesting since it was  
> like two LPF Sallen-Keys in series, forming a 4-pole... can anyone  
> point me to it?
>
> ...any other good Sallen-Key OTA-based examples out there? Maybe a  
> Sallen-Key OTA actual bandpass filter?
>
> (there's pleanty of state variable examples, no problem there)
>
> For Sallen-Key vactrols, you of course can already guess what I'm  
> going to use. ;)
>
> - Aaron
>
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-------------------------------------------------
Yves Usson
email :       yves.usson at yusynth.net
web site :    http://yusynth.net