MOTM

h3y all,
anyone know anythin' about the polyfusion hipass filter??
  i just finished buildin' one this week.  in my general ignorance of 
electronics i am assuming it is a 4-pole filter as it has 4 stages.  
i doubled the number of stages an' gave it outputs at stage 4 and 
stage 8.  after starin' at the the schematic for the 420 a spell, i 
worked out how to incorporate a reversin' attenuator input as well as 
a simple attenuating input for cv.
  i was lookin' for a hipass with a different flavour than the 420, 
an' the polyfusion was the only schematic i have run across.  the 
sound is a little dirty, but in a nice way.  i rather like it 
overall...  lotta fun patchin' S&H with a medium slew rate into FM1.
thanks,
doc