Akashic Guitar effects circuit lookup
VOLUMEGAINBASSMID BOOSTTREBLE

125B · 5 knobs

PedalPCB· PCB317

XB-MB Preamp

Based on the Xotic BB Preamp Mid Boost

Category
Fuzz· OD / Distortion / Fuzz
Controls
Volume · Gain · Bass · Mid Boost · Treble
Price
$12.00in stock
Tags
125B, 125B 5-Knob (Type 1)
Buy the PCB at PedalPCB Build document7/8/20 Tayda drill template

From the vendor

Controls

• Volume

• Gain

• Bass

• Mid Boost

• Treble

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 manufactured or distributed by Xotic Guitars & Effects, maker of the Xotic BB Preamp Mid Boost.

PedalPCB is not affiliated with Xotic Guitars & Effects.

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 53 rows

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RefValueNormalizedTypeNotes
Resistors 24
R11M1MResistor, 1/4W
R21K1kResistor, 1/4W
R3470K470kResistor, 1/4W
R410K10kResistor, 1/4W
R510K10kResistor, 1/4W
R610K10kResistor, 1/4W
R74K74.7kResistor, 1/4W
R81K1kResistor, 1/4W
R91K1kResistor, 1/4W
R11220R220Resistor, 1/4W
R1310K10kResistor, 1/4W
R1410K10kResistor, 1/4W
R1547K47kResistor, 1/4W
R164K74.7kResistor, 1/4W
R174K74.7kResistor, 1/4W
R1833K33kResistor, 1/4W
R1910K10kResistor, 1/4W
R20470K470kResistor, 1/4W
R2110K10kResistor, 1/4W
R2247R47Resistor, 1/4W
R23100K100kResistor, 1/4W
R1004K74.7kResistor, 1/4W
R10110K10kResistor, 1/4W
R10210K10kResistor, 1/4W
Capacitors 17
C122n22nFilm capacitor, 7.2 x 2.5mm
C21u1uFilm capacitor, 7.2 x 5mm
C351p51pCeramic capacitor
C447n47nFilm capacitor, 7.2 x 2.5mm
C5220n220nFilm capacitor, 7.2 x 2.5mm
C6220n220nFilm capacitor, 7.2 x 2.5mm
C7100n100nFilm capacitor, 7.2 x 2.5mm
C8180p180pCeramic capacitor
C94n74.7nFilm capacitor, 7.2 x 2.5mm
C104n74.7nFilm capacitor, 7.2 x 2.5mm
C1133n33nFilm capacitor, 7.2 x 2.5mm
C1233n33nFilm capacitor, 7.2 x 2.5mm
C1310u10uElectrolytic capacitor, 5mm
C14100n100nFilm capacitor, 7.2 x 2.5mm
C1510u10uElectrolytic capacitor, 5mm
C10047u47uElectrolytic capacitor, 5mm
C10147u47uElectrolytic capacitor, 5mm
Diodes 3
D21N41481N4148Signal diode, DO-35
D31N41481N4148Signal diode, DO-35
D1001N58171N5817Schottky diode, DO-41
Transistors 2
Q1BC550BC550BJT transistor, NPN TO-92
Q2BC550BC550BJT transistor, NPN TO-92
ICs 2
IC1JRC4558JRC4558Dual op-amp, DIP8
IC2JRC4558JRC4558Dual op-amp, DIP8
Potentiometers 5
LEVELB100KB100k16mm right-angle PCB mount pot
GAINB1MB1M16mm right-angle PCB mount pot
BASSB50KB50k16mm right-angle PCB mount pot
MIDW20KW20k16mm right-angle PCB mount pot
TREBLEB50KB50k16mm right-angle PCB mount pot