Distortus Maximus

Distortus Maximus is a high-gain distortion pedal with three-band equalization. It produces rich harmonics and massive amount of gain ideal to play metal.
Steps

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

PCB DESIGNATORS

PCB
DISTORTUS MAXIMUS DIY PCB GUITAR EFFECT
Capacitors        
C1    4.7n      4.7NF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C2    22n       22NF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C3    22n       22NF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C4    4.7n      4.7NF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C5    47u       47UF 25V ELECTROLYTIC CAPACITOR 5X11MM
C6    22n       22NF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C7    470p     470PF 50V CERAMIC DISC CAPACITOR
C8    22n       22NF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C9    100u     100UF 35V ELECTROLYTIC CAPACITOR 6X11MM
C10  100n     100NF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C11  10u       10UF 50V ELECTROLYTIC CAPACITOR 5X11MM
Diodes        
D1    1N4001       1N4001 DIODE 1A 50V
Transistors / IC
Q1    2N5088     2N5088 GERENAL PURPOSE TRANSISTOR
IC1   LM386       LM386 AUDIO AMPLIFIER IC
Resistors        
R1    4.7M     4.7M OHM 1/4W 1% METAL FILM RESISTOR
R2    43k       43K OHM 1/4W 1% METAL FILM RESISTOR
R3    430k     430K OHM 1/4W 1% METAL FILM RESISTOR
R4    10k       10K OHM 1/4W 1% METAL FILM RESISTOR
R5    390       390 OHM 1/4W 1% METAL FILM RESISTOR
R6    56k       56K OHM 1/4W 1% METAL FILM RESISTOR
R7    100       100 OHM 1/4W 1% METAL FILM RESISTOR
R8    33K       33K OHM 1/4W 1% METAL FILM RESISTOR
Potentiometers        
BASS         1M-A       1M OHM LOG POTENTIOMETER
MID           25k-A      25K OHM LOG POTENTIOMETER
TREBLE      250k-A    250K OHM LOG POTENTIOMETER
VOL           1M-A       1M OHM LOG POTENTIOMETER
GAIN         50k-A      50K OHM LOG POTENTIOMETER

SCHEMATIC

 

PCB (DHC1v3)

 

PCB (DHC1v2 Legacy)

The footprint of the potentiometers in DHC1v2 are inverted (top and bottom silkscreen layers). Mount the potentiometers directly on the PCB as indicated in the following figure.