Non LPF ladder filters?

[Michael V. Dvorkin]

On Dec 19, 11:15am, Mark Smart wrote:
> Subject: Re: Non LPF ladder filters?
> > There's the voltage-controlled phase shifter on the ARP Quadra.  It's
> > an incredibly clever variation of the Moog ladder.
> >
> >   -- Don
>
> Absolutely! I've got schematics for this, because I'm repairing my friend's
> Quadra. It has, get this, FOURTEEN STAGES. Every two stages on a phase
> shifter creates a notch in the spectrum, so it makes SEVEN notches. For
> comparison, most commercially available phase shifters have four stages
> and produce two notches. This things sounds really incredible when you
> use it on the Quadra's string section. Wow. I can copy the schematic for
> you if you're really interested.
>

Yeah! It'd be great!

Mike

>
>
> ************************************************
> *     Mark Smart                               *
> *     Network Technician                       *
> *     University Communications Inc. (UCI)     *
> *     smart at medusa.nn.com                      *
> ************************************************
>-- End of excerpt from Mark Smart



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