Ken, thanks for the feedback on the bandpass filter boards.
As for the NE571 (Philips SA571 too it appears), do you have a circuit
in mind? The price does not seem unreasonable for 2 followers if it
uses as few external parts as I suspect. But I'm not much at design.
OTOH, I can do breadboards and PC board assembly pretty well.
(Jameco has NE571's, and a lot of companies have SA571's.)
Thanks to Mark as well for the noteproc link.
Larry T.
As for the NE571 (Philips SA571 too it appears), do you have a circuit
in mind? The price does not seem unreasonable for 2 followers if it
uses as few external parts as I suspect. But I'm not much at design.
OTOH, I can do breadboards and PC board assembly pretty well.
(Jameco has NE571's, and a lot of companies have SA571's.)
Thanks to Mark as well for the noteproc link.
Larry T.
--- In cgs_synth@yahoogroups.com, sasami@... wrote:
>
> Use pairs of 100k trimmers, NOT physically attached. That way you
can adjust
> both the position and the width of the band. You could get a couple of
> envelope followers per NE571 if you don't mind the price.
>
> Ken
>
> >Hi Ken
> >
> >If I wanted to use a series of your bandpass filter boards to build a
> >fixed filter bank, how would you suggest I replace the dual Freq pots
> >with resistors for best affect? Something similar to the DotCom fixed
> >filter bank (http://www.synthesizers.com/q127.html) with bandwidth
> >controls and individual band outputs. (I'm toying with the idea of
> >building a patchable vocoder. Simple VCA's are available, I just need
> >to find a small, simple envelope follower...)
> >
> >Larry T.
> >
> >
> >
> >The CGS Modular Synth home page: http://www.cgs.synth.net/
> >
> >Yahoo! Groups Links
> >
> >
> >
> >
> _______________________________________________________________________
> Ken Stone sasami@...
> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
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>