[sdiy] RG Keen Phase Shifter Using MF10CN

[Scott Stites]

Hi again,
Well, I took another look at the PDF, and I got my author's mixed around:
the design is actually RA Penfold and not RG Keen.  Sorry for any confusion
and my apologies to RG and RA.

It's been a long day,
Scott


----- Original Message -----
From: Peter Snow <psnow at magma.ca>
Cc: <synth-diy at dropmix.xs4all.nl>
Sent: Monday, September 30, 2002 3:24 PM
Subject: Re: [sdiy] RG Keen Phase Shifter Using MF10CN


> Hi Scott,
>
> If you don't get any answers here try the AMPAGE diy effects forum
http://www.firebottle.com/ampage/
> Someone there may have built it (maybe Mark Hammer or our own Mike
Irwin?). Anyway I believe RG Keen
> hangs out there also so you could ask him if he ever built it and whether
it worked.
>
> Good luck.
>
> Peter
>
>
> Scott Stites wrote:
> >
> > Hi All,
> > I've had in my possesion for quite some time a PDF file called
'PHASER.PDF'.
> >
> > Basically it's a Phase Shifter designed by RG Keen that uses the MF10CN
switched
> > capacitor filter rigged up as a couple of notch filters, rather than the
normal
> > approach using all pass filters.
> >
> > I'm just curious if someone out there in Synth-DIY land has tried this
particular
> > circuit out, and if so, what were the results (desirable, undesirable,
so-so,
> > great, etc.)?
> >
> > I have all of the elements for it, but I thought I'd ask first before
diving into
> > it in the future.
> >
> > Thanks for any information,
> > Scott
> >
> > ________________________________________________
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>