Envelope Follower Project Parts List

Qty. Description Value Designators
1  LM13700 Dual gm OpAmp  LM13700  U3  
1  TL072 Dual Op Amp  TL072  U2  
1  TL074 Quad Op Amp  TL074  U1  
2  Transistor PNP 2N3906  2N3906  Q1, Q2  
2  Diode 1N914  1N914  D1, D2  
5  Carbon comp (or film) resistor 1/4W 5%  100K  R1, R3, R7, R8, R11  
1  Carbon comp (or film) resistor 1/4W 5%  120K  R23  
1  Carbon comp (or film) resistor 1/4W 5%  15K  R22  
2  Carbon comp (or film) resistor 1/4W 5%  1K  R24, R25  
2  Carbon comp (or film) resistor 1/4W 5%  1M  R4, R6  
1  Carbon comp (or film) resistor 1/4W 5%  200 ohm  R26  
6  Carbon comp (or film) resistor 1/4W 5%  20K  R13, R14, R17, R18, R20, R21  
2  Carbon comp (or film) resistor 1/4W 5%  2K  R12, R15  
3  Carbon comp (or film) resistor 1/4W 5%  300K  R5, R10, R16  
3  Carbon comp (or film) resistor 1/4W 5%  30K  R19, R30, R31  
2  Carbon comp (or film) resistor 1/4W 5%  4.7K  R28, R29  
2  Carbon comp (or film) resistor 1/4W 5%  47K  R2, R27  
1  Linear Potentiometer  100K  R9  
2  Capacitor Aluminum Non polarized  1uF  C8, C9  
1  Capacitor Ceramic  .01uF  C5  
6  Capacitor Ceramic  .1uF  C1, C2, C3, C4, C12, C13  
2  Capacitor Ceramic  330pF  C10, C11  
2  Capacitor Electrolytic  220uF  C6, C7  
1  DPDT Push On Push Off Foot Switch  DPDT  S1  
1  Jack 1/4" 2 Terminal  1/4" Mono Jack  J2  
1  Jack Stereo Headphone (TRS)  1/4" Stereo Jack (TRS)  J1  
1  9V Battery Clip  9V Battery  B1  
1  8 Pin Gold Contact Machined IC Sockets    You'll be glad you used sockets  
1  14 Pin Gold Contact Machined IC Sockets    You'll be glad you used sockets  
1  16 Pin Gold Contact Machined IC Sockets    You'll be glad you used sockets  
4  6-32 3/4" machine screws    For mounting PCB.  
4  6-32 nuts    For mounting PCB.  
4  3/8" nylon stand-offs    For mounting PCB.  
8  #6 x 1/2" pan head phillips screws    For attaching top and back plates.  
2  #4 x 1/2" flat head phillips screws    For attaching battery holder.  
1  4.5" x 8.75" .08" thick aluminum plate.    For use as faceplate.  
1  Knob for 1/4" shaft    Wah Range knob.  
6  feet of stranded 24 gauge wire.    For wiring the effect.  
4  Self Adhesive Bumper/Feet    Feet for the pedal.  
1  Battery Holder    For holding the battery.