BassStation Filter: What is it?

[Rob]

I am currently building JH's wasp clone as we speak.. I just didnt want to
end up with redundancy, so I asked an obvious question before I went ahead
and finished it.

I have heard that the bass response goes nice and low on the Wasp filter,
which is what I wanted, plus the 5 v single ended rail works rather well for
me.

I dunno, if I can figure out a way to run a moog ladder off of a 0 to 12v
rail, I might go that way too, but the rescaling can end up being rather
taxing.

Thanks

Rob

----- Original Message -----
From: "Harry Bissell" <harrybissell at prodigy.net>
To: "Rob" <cyborg_0 at iquest.net>
Cc: "Bjorn Julin" <bnillson at hotmail.com>; <a0284520 at addcom.de>;
<synth-diy at node12b53.a2000.nl>
Sent: Sunday, November 26, 2000 6:27 PM
Subject: Re: BassStation Filter: What is it?


> Hi all...
>
> I doubt the filter is near the Wasp. Check out JH's clone of the Wasp...
its a
> state
> variable and the Bass Station is probably a 4 pole cascade, tapped at the
2 pole
>
> point (more like the CEM3320...)
>
> If you want a great sounding flange, take two digital delay lines (a
matched
> pair is
> even nicer) and send the signal through wach in parallel. Set one for a
fixed
> delay
> (like 2mS) and sweep the other through the 2mS point.  Sum both delay
lines out
> of phase... no original signal mixed in. True through zero flanging !!!
which is
> where
> most DDLs screw up.
>
> Opamp / OTA is a phaser... its really not a time delay effect per-se, but
if you
>
> cascade enough stages it gets to be that way...
>
> Rob wrote:
>
> > As far as the Bassstation, I wonder how closely related the filter is to
the
> > EDP Wasp filter? I would guess fairly close in both sound and function,
but
> > I am not sure.