OCD overdrive

Thi popular DIY pedal produces the dynamic feeling and harmonics typical of tube amps. It incorporates a switch to control the bright and thick of the overdrive.
Steps

Created by DHEA
Status: Active
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Designators and components Step 2 of 5

COMPONENT LIST

​​​​PCB  OCD OVERDRIVE DIY PCB GUITAR EFFECT

RESISTORS
R1    1M    1M OHM 1/4W 1% METAL FILM RESISTOR
R2    10k    10K OHM 1/4W 1% METAL FILM RESISTOR
R3    470k    470K OHM 1/4W 1% METAL FILM RESISTOR
R4    2.2k    2.2K OHM 1/4W 1% METAL FILM RESISTOR
R5    18k    18K OHM 1/4W 1% METAL FILM RESISTOR
R6    10k    10K OHM 1/4W 1% METAL FILM RESISTOR
R7    10k    10K OHM 1/4W 1% METAL FILM RESISTOR
R8    150k    150K OHM 1/4W 1% METAL FILM RESISTOR
R9    39k    39K OHM 1/4W 1% METAL FILM RESISTOR
R10    22k    22K OHM 1/4W 1% METAL FILM RESISTOR
R11    33k    33K OHM 1/4W 1% METAL FILM RESISTOR
R12    100    100 OHM 1/4W 1% METAL FILM RESISTOR
R13    10k    10K OHM 1/4W 1% METAL FILM RESISTOR
R14    10k    10K OHM 1/4W 1% METAL FILM RESISTOR

CAPACITORS
C1    22n    22NF 0.022UF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C2    68n    68NF 0.068UF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C3    220p    220PF 50V CERAMIC DISC CAPACITOR
C4    1n    1NF 0.001UF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C5    100n    100NF 0.1UF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C6    220p    220PF 50V CERAMIC DISC CAPACITOR
C7    10u    10UF 50V 105C RADIAL ELECTROLYTIC CAPACITOR 5X11MM
C8    47n    47NF 0.047UF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C9    100u    100UF 35V 105C RADIAL ELECTROLYTIC CAPACITOR 6X11MM
C10    100n    100NF 0.1UF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C11    100u    100UF 35V 105C RADIAL ELECTROLYTIC CAPACITOR 6X11MM

POTENTIOMETERS
DRIVE    1M-A    1M OHM LOGARITHMIC TAPER POTENTIOMETER
TONE    10k-B    10K OHM LINEAR TAPER POTENTIOMETER PC MOUNT
VOL    500k-A    500K OHM LOGARITHMIC TAPER POTENTIOMETER

TRANSISTORS
Q1    2N7000    2N7000 MOSFET N-CHANNEL 60V 0.2A
Q2    2N7000    2N7000 MOSFET N-CHANNEL 60V 0.2A

DIODES
D1    1N34    1N34A 1N34 GERMANIUM DIODE DO-7
D2    1N4148    1N4148 SWITCHING SIGNAL DIODE

OP AMP
U1    TL082    TL082 TL082CN J-FET DUAL OP-AMP IC

SWITCH
SW    SWITCH    MINI TOGGLE SWITCH SPDT ON-ON

 

PCB