[sdiy] Filters

[Scott Stites]

Hi David,

Jameco has the LM13700.

http://www.jameco.com/

Cheers,
Scott

----- Original Message ----- 
From: "David Reichert" <dreichert at sympatico.ca>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Thursday, January 01, 2004 10:25 AM
Subject: RE: [sdiy] Filters


> Ray,
> 
> I'd like to build a circuit something like this but I'm finding the
> LM13700s hard to source. Do you perhaps know of a reliable source?
> 
> Would I be correct in assuming that replacing these ICs with CA3080s and
> using simple Op-Amp buffers would be a futile idea?
> 
> Thanks,
> Dave
> 
> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl
> [mailto:owner-synth-diy at dropmix.xs4all.nl] On Behalf Of Ray Wilson
> Sent: December 31, 2003 10:30 AM
> To: The D.U.G.; synth-diy at dropmix.xs4all.nl
> Subject: Re: [sdiy] Filters
> 
> Here is a good general purpose filter:
> 
> http://www.musicfromouterspace.com/analogsynth/statevariablefilter.html
> 
> Cheers
> 
> Ray
> 
> 
> ----- Original Message ----- 
> From: "The D.U.G." <dug at dugdesign.com>
> To: <synth-diy at dropmix.xs4all.nl>
> Sent: Tuesday, December 30, 2003 8:05 AM
> Subject: [sdiy] Filters
> 
> 
> > Can anybody recommend some good sounding easy to build filters for
> > beginners. Either something that has a pcb or is easy to P2P.
> >
> > I like the Sherman filter bank and the moog filters but I know there
> are
> > prolly kind complex.
> >
> > I found the EFM stuff and they seem cheap but nobody ever responded to
> me.
> >
> > d./
> >
> 
> 
>