She is a basic FUZZFACE circuit    <two NPN transister distortion, ala jimi,   driving a  NURSE QUACKY envelope filter,  <runoffgroove's take on the ELECTRO HARMONICS 'DR.Q', >   whos RANGE pot can, via on board switch,  be  modulated by a            triangle wave led/photo resistor circuit,              ( with adjustable speed control)  to  create a sort of Sci-Fi-ish,                                      Netherworld  Auto-Wah. . .Wah . . . Wah . . . Wah . . .
          HOME Just LISTEN to her would ya........................................................
Nurse no face  Quacking with and without throb, at a few different speeds. . .fuzz knob 9:00 or so. sens. and Range pretty well pegged.

Nurse with face Same as above with fuzz at 3:00 or so. . . . . . .