DH Pitch Shifter  (Dean Hazelwanter)
Bill of Materials
   From:  Guitar Effects Projects
Revison: 2003-06-10


Resistors (1/4 watt rating)
2 - 33 ohm
  or if using bipolar power supply:
     1 - 180 ohm
     1 - 220 ohm
1 - 330 ohm
1 - 2k7   (2.7k)
1 - 4k7   (4.7k)
5 - 10k
1 - 33k 
2 - 100k
1 - 120k


Pots  (1/4 watt rating)
P1 & P2 - Dual Gang   10k linear
  or optionally separate pots:
    P1 - 10k  linear
    P2 - 10k  linear
P3 - 250k linear
P4 - 10k  audio

Capacitors  (minimum 16 volt rating)
2 - 0.1uF  film 
1 - 0.22uF film
1 - 4.7uF  aluminum electrolytic (can be 10 volt rating)
2 - 10uF   aluminum electrolytic (can be 10 volt rating)
2 - 22uF   aluminum electrolytic


ICs
1 - JRC4558 (original) or TL072 or other dual opamp
1 - HT8950 (18 pin version)  (Available from Small Bear)

Diodes
2 - 1N5227, 1N747A or other 3.6v zener diode
1 - LED (optional)
12 - 1N914

Other
1 - IC socket (8 pin)
1 - IC socket (18 pin)
1 - 7PST rotary switch
1 - DPDT heavy duty foot switch or 3PDT heavy duty foot switch
2 - SPST momentary switches
2 - quarter inch jacks
1 - DC jack  (recommend running this unit off a power supply,
   not battery due to the high current consumption)
Copper-clad board, etchant, or perfboard
24 gauge stranded wire
Enclosure
Optional:  If using a 3PDT for LED indicator, 1 - LED 
              and 1 - 4k7 resistor.

Copyright 2003  JD Sleep
Guitar Effects Projects @ http://www.generalguitargadgets.com