Blues Breaker
This is the Blues Breaker, a very popular DIY pedal. It gives a very dynamic range, from transparent to overdriven sound.Steps
Categories
Status: Active
Designators and components Step 2 of 5
COMPONENT LIST
Resistors
R1 2.2M 2.2M OHM 1/4W 1% METAL FILM RESISTOR
R2 1M 1M OHM 1/4W 1% METAL FILM RESISTOR
R3 4.7k 4.7K OHM 1/4W 1% METAL FILM RESISTOR
R4 3.3k 3.3K OHM 1/4W 1% METAL FILM RESISTOR
R5 10k 10K OHM 1/4W 1% METAL FILM RESISTOR
R6 6.8k 6.8K OHM 1/4W 1% METAL FILM RESISTOR
R7 220k 220K OHM 1/4W 1% METAL FILM RESISTOR
R8 1k 1K OHM 1/4W 1% METAL FILM RESISTOR
R9 6.8k 6.8K OHM 1/4W 1% METAL FILM RESISTOR
R10 1M 1M OHM 1/4W 1% METAL FILM RESISTOR
R11 47k 47K OHM 1/4W 1% METAL FILM RESISTOR
R12 47k 47K OHM 1/4W 1% METAL FILM RESISTOR
Capacitors
C1 10n 10NF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C2 10n 10NF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C3 10n 10NF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C4 47p 47PF 50V CERAMIC DISC CAPACITOR
C5 100n 100NF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C6 10n 10NF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C7 10n 10NF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C8 100n 100NF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C9 100u 100UF 35V ELECTROLYTIC CAPACITOR 6X11MM
C10 100u 100UF 35V ELECTROLYTIC CAPACITOR 6X11MM
Diodes
D1 1N4148 1N4148 SWITCHING SIGNAL DIODE
D2 1N4148 1N4148 SWITCHING SIGNAL DIODE
D3 1N4148 1N4148 SWITCHING SIGNAL DIODE
D4 1N4148 1N4148 SWITCHING SIGNAL DIODE
D5 1N4001 1N4001 DIODE 1A 50V
IC
OP1 TL072 TL072 OPERATIONAL AMPLIFIER
(Socket 8 pin dip ic socket)
Potentiometers
GAIN 100k-B 100K OHM LIN TAPER POTENTIOMETER
TONE 25k-B 25K OHM LOG TAPER POTENTIOMETER
VOL 100k-A 100K OHM LOG TAPER POTENTIOMETER
MODIFICATIONS
Change R7 from 220k to 470k for higher gain.
Change C6 and C7 to 22n for a tone control with more bass.
PCB Blues Breaker DIY PCB Guitar Effect
SCHEMATIC
