PedalPCB Valhalla Quick start guide

Copyright © 2020 - PedalPCB.com Page 1 of 7Valhalla Overdrive
Valhalla Overdrive
Revised 4/9/21
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• Treble
• Mid
• Bass
• Gain
• Volume
• Presence
• Deep
CONTROLS AND FEATURES

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Valhalla Overdrive
Parts List (Page 1 of 2)
LOCATION VALUE TYPE NOTES
R1 1M Resistor, 1/4W
R2 1M Resistor, 1/4W
R3 100K Resistor, 1/4W
R4 220K Resistor, 1/4W
R5 10K Resistor, 1/4W
R6 470K Resistor, 1/4W
R7 220K Resistor, 1/4W
R8 680K Resistor, 1/4W
R9 220K Resistor, 1/4W
R10 1M Resistor, 1/4W
R11 10K Resistor, 1/4W
R12 100K Resistor, 1/4W
R13 470K Resistor, 1/4W
R14 220K Resistor, 1/4W
R15 220K Resistor, 1/4W
R16 10K Resistor, 1/4W
R17 39K Resistor, 1/4W
R18 1M5 Resistor, 1/4W
R19 100K Resistor, 1/4W
R20 10K Resistor, 1/4W
R21 4K7 Resistor, 1/4W
R22 1K Resistor, 1/4W
R23 150K Resistor, 1/4W
R24 100K Resistor, 1/4W
R25 100R Resistor, 1/4W
R26 56K Resistor, 1/4W
R27 47R Resistor, 1/4W
R28 100K Resistor, 1/4W
R29 10R Resistor, 1/4W
R30 1K Resistor, 1/4W
R31 10R Resistor, 1/4W
R100 2K2 Resistor, 1/4W
C1 22n Film capacitor, 7.2 x 2.5mm
C2 100p Ceramic capacitor
C3 1u Electrolytic capacitor, 5mm
C4 100p Ceramic capacitor
C5 1u Electrolytic capacitor, 5mm
C6 22n Film capacitor, 7.2 x 2.5mm
C7 2n2 Film capacitor, 7.2 x 2.5mm
C8 47p Ceramic capacitor
C9 2u2 Electrolytic capacitor, 5mm
C10 4n7 Film capacitor, 7.2 x 2.5mm
C11 100p Ceramic capacitor
C12 2u2 Electrolytic capacitor, 5mm
C13 560p Ceramic capacitor
C14 22n Film capacitor, 7.2 x 2.5mm
Continued on next page…

Copyright © 2020 - PedalPCB.com Page 3 of 7Valhalla Overdrive
Valhalla Overdrive
Parts List (Page 2 of 2)
LOCATION VALUE TYPE NOTES
C15 22n Film capacitor, 7.2 x 2.5mm
C16 1n Film capacitor, 7.2 x 2.5mm
C17 10u Electrolytic capacitor, 5mm
C18 10u Electrolytic capacitor, 5mm
C19 2n2 Film capacitor, 7.2 x 2.5mm
C20 2u2 Electrolytic capacitor, 5mm
C21 1u Electrolytic capacitor, 5mm
C22 330n Film capacitor, 7.2 x 5.0mm
C23 1u Electrolytic capacitor, 5mm
C24 47u Electrolytic capacitor, 5mm
C25 47u Electrolytic capacitor, 5mm
C26 47u Electrolytic capacitor, 5mm
C100 47u Electrolytic capacitor, 5mm
C101 47u Electrolytic capacitor, 5mm
D1 1N4148 Signal diode, DO-35
D2 1N4148 Signal diode, DO-35
D3 1N5232 Zener diode, 5.6V
D4 1N5232 Zener diode, 5.6V
D5 1N4148 Signal diode, DO-35
D6 1N4148 Signal diode, DO-35
D100 1N5817 Schottky diode, DO-41
IC1 TL072 Dual op-amp, DIP8
IC2 TL072 Dual op-amp, DIP8
IC3 TL072 Dual op-amp, DIP8
IC4 L78L12 Regulator, Positive 12V
IC100 TC1044SCPA Charge Pump IC, DIP8
TREBLE B250K 16mm right-angle PCB mount pot
MID B25K 16mm right-angle PCB mount pot
BASS A1M 16mm right-angle PCB mount pot
GAIN A250K 16mm right-angle PCB mount pot
VOL A10K 16mm right-angle PCB mount pot
PRES C25K 16mm right-angle PCB mount pot
DEEP C25K 16mm right-angle PCB mount pot

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Valhalla Overdrive
Schematic Diagram

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Valhalla Overdrive
Wiring Diagram

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Valhalla Overdrive
Drill Template
1590BB Enclosure
MidTreble Bass
PresenceVolume Deep
Gain

Copyright © 2020 - PedalPCB.com Page 7 of 7Valhalla Overdrive
Valhalla Overdrive
Drill Template
1590BB Enclosure
Alternate Version
(No Power Amp Output Jack)
MidTreble Bass
PresenceVolume Deep
Gain