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VOLUMEFILTERBLENDGLITCH (TOGGLE SWITCH)2-DOWN (TOGGLE SWITCH)

125B · 5 knobs

PedalPCB· PCB360

Underminer Sub-Octave Synthesizer

Based on the Seppuku Sub Octave Synth· 1 other board clones it

Category
Fuzz· OD / Distortion / Fuzz
Controls
Volume · Filter · Blend · Glitch (Toggle switch) · 2-Down (Toggle switch)
Price
$10.00in stock
Tags
125B
Buy the PCB at PedalPCB Build document2/13/21

From the vendor

Controls

• Volume

• Filter

• Blend

• Glitch (Toggle switch)

• 2-Down (Toggle switch)

Details

• Designed for a 125B enclosure with top-mounted jacks

The company, product and service names used in this web site are for identification purposes only. All trademarks and registered trademarks are the property of their respective owners. This product is not licensed, manufactured, or distributed by Seppuku FX, maker of the Seppuku Sub-Octave Synth.

PedalPCB is not affiliated with Seppuku FX.

Schematic

The schematic is in the vendor's build document, page 3. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 32 rows

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RefValueNormalizedTypeNotes
Resistors 11
R16K86.8kResistor, 1/4W
R21M1MResistor, 1/4W
R3470R470Resistor, 1/4W
R45K65.6kResistor, 1/4W
R51M1MResistor, 1/4W
R61K1kResistor, 1/4W
R73K93.9kResistor, 1/4W
R839K39kResistor, 1/4W
R939K39kResistor, 1/4W
R101M1MResistor, 1/4W
R1004K74.7kResistor, 1/4W
Capacitors 12
C110n10nFilm capacitor, 7.2 x 2.5mm
C2100n100nFilm capacitor, 7.2 x 2.5mm
C3100n100nFilm capacitor, 7.2 x 2.5mm
C447u47uElectrolytic capacitor, 5mm
C5100n100nFilm capacitor, 7.2 x 2.5mm
C6100n100nFilm capacitor, 7.2 x 2.5mm
C7470n470nFilm capacitor, 7.2 x 5.0mm
C8100n100nFilm capacitor, 7.2 x 2.5mm
C93n33.3nFilm capacitor, 7.2 x 2.5mm
C1010n10nFilm capacitor, 7.2 x 2.5mm
C11100n100nFilm capacitor, 7.2 x 2.5mm
C100100u100uElectrolytic capacitor, 5mm
Diodes 1
D1001N58171N5817Schottky diode, DO-41
Transistors 2
Q12N50882N5088BJT transistor, NPNTO-92
Q2MPSA14MPSA14BJT darlington transistor, NPNTO-92
ICs 1
IC1CD4046CD4046Phase Locked Loop IC (PLL)DIP16
Potentiometers 3
VOLUMEA100KA100k16mm right-angle PCB mount pot100K, Audio Taper (A)
FILTERB100KB100k16mm right-angle PCB mount pot100K, Linear Taper (B)
BLENDB50KB50k16mm right-angle PCB mount pot50K, Linear Taper (B)
Switches 2
GLITCHON/ONON/ONToggle switch, SPDT2-position (ON/ON)
2DOWNON/ONON/ONToggle switch, SPDT2-position (ON/ON)

Other boards based on the Seppuku Sub Octave Synth