Akashic Guitar effects PCB lookup
MASTERTILTPRE-VOLUMEHI-PASS (TOGGLE SWITCH)

125B · 4 knobs

PedalPCB· PCB501

Pastel Preamp

Based on the JHS Crayon

Category
Overdrive
Controls
Master · Tilt · Pre-Volume · Hi-Pass (Toggle switch)
Price
$15.00in stock
Buy the PCB at PedalPCB Build document12/18/24

From the vendor

Controls

• Master

• Tilt

• Pre-Volume

• Hi-Pass (Toggle switch)

• Hi-Pass Frequency (Toggle switch)

Specifications

• Includes 3PDT breakout board for easy footswitch wiring

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

Documentation

Schematic

The schematic is in the vendor's build document, page 4. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 107 rows

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RefValueNormalizedTypeNotes
Resistors 55
R11M1MResistor, 1/4W
R21M1MResistor, 1/4W
R31M1MResistor, 1/4W
R43K33.3kResistor, 1/4W
R5120K120kResistor, 1/4W
R668K68kResistor, 1/4W
R738K338.3kResistor, 1/4W
R847K47kResistor, 1/4W
R95K15.1kResistor, 1/4W
R10470R470Resistor, 1/4W
R111K51.5kResistor, 1/4W
R1215K15kResistor, 1/4W
R132K22.2kResistor, 1/4W
R14390R390Resistor, 1/4W
R15120R120Resistor, 1/4W
R1651K51kResistor, 1/4W
R1710K10kResistor, 1/4W
R18120K120kResistor, 1/4W
R1968K68kResistor, 1/4W
R2038K338.3kResistor, 1/4W
R2147K47kResistor, 1/4W
R225K15.1kResistor, 1/4W
R23470R470Resistor, 1/4W
R241K51.5kResistor, 1/4W
R2510K10kResistor, 1/4W
R262K22.2kResistor, 1/4W
R27390R390Resistor, 1/4W
R2815K15kResistor, 1/4W
R2927R27Resistor, 1/4W
R3051K51kResistor, 1/4W
R3147K47kResistor, 1/4W
R3210K10kResistor, 1/4W
R336K86.8kResistor, 1/4W
R342K22.2kResistor, 1/4W
R352K22.2kResistor, 1/4W
R366K86.8kResistor, 1/4W
R3756K56kResistor, 1/4W
R38100K100kResistor, 1/4W
R3920K20kResistor, 1/4W
R4020K20kResistor, 1/4W
R4156K56kResistor, 1/4W
R4268K68kResistor, 1/4W
R4382K82kResistor, 1/4W
R4447K47kResistor, 1/4W
R4547K47kResistor, 1/4W
R4633K33kResistor, 1/4W
R472K72.7kResistor, 1/4W
R48220K220kResistor, 1/4W
R4947K47kResistor, 1/4W
R5068R68Resistor, 1/4W
R10010R10Resistor, 1/4W
R10110R10Resistor, 1/4W
R10222K22kResistor, 1/4W
R10322K22kResistor, 1/4W
CLR4K74.7kResistor, 1/4W* LED current limiting resistor
Capacitors 36
C1100n100nFilm capacitor, 7.2 x 2.5mm
C210u10uElectrolytic capacitor, 5.0mm
C310u10uElectrolytic capacitor, 5.0mm
C422u22uElectrolytic capacitor, 5.0mm
C5100p100pCeramic capacitor
C61n51.5nFilm capacitor, 7.2 x 2.5mm
C7100u100uElectrolytic capacitor, 5.0mm
C8680p680pCeramic capacitor
C922u22uElectrolytic capacitor, 5.0mm
C10470u470uElectrolytic capacitor, 8.0mm
C1122u22uElectrolytic capacitor, 5.0mm
C1210u10uElectrolytic capacitor, 5.0mm
C1322u22uElectrolytic capacitor, 5.0mm
C14100p100pCeramic capacitor
C151n51.5nFilm capacitor, 7.2 x 2.5mm
C16100u100uElectrolytic capacitor, 5.0mm
C17680p680pCeramic capacitor
C1822u22uElectrolytic capacitor, 5.0mm
C19470u470uElectrolytic capacitor, 8.0mm
C2022u22uElectrolytic capacitor, 5.0mm
C2122u22uElectrolytic capacitor, 5.0mm
C2222u22uElectrolytic capacitor, 5.0mm
C2333n33nFilm capacitor, 7.2 x 2.5mm
C2433n33nFilm capacitor, 7.2 x 2.5mm
C2522p22pCeramic capacitor
C2622n22nFilm capacitor, 7.2 x 2.5mm
C2710n10nFilm capacitor, 7.2 x 2.5mm
C2822u22uElectrolytic capacitor, 5.0mm
C2947u47uElectrolytic capacitor, 5.0mm
C3047u47uElectrolytic capacitor, 5.0mm
C3122u22uElectrolytic capacitor, 5.0mm
C100100u100uElectrolytic capacitor, 5.0mm� 25V minimum voltage
C101100n100nFilm capacitor, 7.2 x 2.5mm
C102100u100uElectrolytic capacitor, 5.0mm
C103100u100uElectrolytic capacitor, 5.0mm
C104100n100nFilm capacitor, 7.2 x 2.5mm
Diodes 1
D11N58171N5817Schottky diode, DO-41
Transistors 9
Q1J201J201JFET transistor, N-channelSub: MMBFJ201
Q22N64292N6429BJT transistor, NPN TO-92Sub: MPSA18
Q32N64292N6429BJT transistor, NPN TO-92Sub: MPSA18
Q42N64292N6429BJT transistor, NPN TO-92Sub: MPSA18
Q52N64292N6429BJT transistor, NPN TO-92Sub: MPSA18
Q62N64292N6429BJT transistor, NPN TO-92Sub: MPSA18
Q72N64292N6429BJT transistor, NPN TO-92Sub: MPSA18
Q8BC546ABC546ABJT transistor, NPN TO-92
Q9BC546ABC546ABJT transistor, NPN TO-92
ICs 1
IC1TL072TL072Dual op-amp, DIP8
Potentiometers 3
MASTERA10KA10k16mm right-angle PCB mount pot
TILTB10KB10k16mm right-angle PCB mount pot
PREA10KA10k16mm right-angle PCB mount pot
Switches 2
HIPASSON/ONON/ONToggle switch, SPDT2-position (ON/ON)
HzON/ONON/ONToggle switch, DPDT2-position (ON/ON)