Non LPF ladder filters?

[Don Tillman]

   Date: Mon, 18 Dec 1995 18:51:46 -0800 (PST)
   From: "A.S.P." <ms20 at zebu.serv.net>

   Anybody know of any high pass or multimode filters that are based around 
   transistor or diode ladders?  I've seen the moog high pass vcf, but I'm 
   wondering if there's any other such animal out there.

There's the voltage-controlled phase shifter on the ARP Quadra.  It's
an incredibly clever variation of the Moog ladder.

  -- Don