Akashic Guitar effects circuit lookup
PRESENCETONEMASTERVOLUMEGAIN

125B · 5 knobs

PedalPCB· PCB344

Drive 55

Based on the Catalinbread Formula No. 55· 3 other boards clone it

Category
Fuzz· OD / Distortion / Fuzz
Controls
Presence · Tone · Master · Volume · Gain
Price
$12.00in stock
Tags
125B
Buy the PCB at PedalPCB Build document4/7/21

From the vendor

Controls

• Presence

• Tone

• Master

• Volume

• Gain (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 manufactured or distributed by Catalinbread Effects, maker of the Catalinbread Formula 55.

PedalPCB is not affiliated with Catalinbread 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 52 rows

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RefValueNormalizedTypeNotes
Resistors 25
R11M1MResistor, 1/4W
R233K33kResistor, 1/4W
R315K15kResistor, 1/4W
R41K1kResistor, 1/4W
R51M1MResistor, 1/4W
R61M1MResistor, 1/4W
R71M1MResistor, 1/4W
R868K68kResistor, 1/4W
R91M1MResistor, 1/4W
R1015K15kResistor, 1/4W
R111K1kResistor, 1/4W
R121M1MResistor, 1/4W
R131M1MResistor, 1/4W
R14100R100Resistor, 1/4W
R15100R100Resistor, 1/4W
R1610K10kResistor, 1/4W
R175K65.6kResistor, 1/4W
R181M1MResistor, 1/4W
R1910K10kResistor, 1/4W
R2010K10kResistor, 1/4W
R2256K56kResistor, 1/4W
R234K74.7kResistor, 1/4W
R245K15.1kResistor, 1/4W
R253K93.9kResistor, 1/4W
R1004K74.7kResistor, 1/4W
Capacitors 14
C11u1uElectrolytic capacitor, 5mm
C2470p470pCeramic capacitor
C34n74.7nFilm capacitor, 7.2 x 2.5mm
C42u22.2uElectrolytic capacitor, 5mm
C522u22uElectrolytic capacitor, 5mm
C6100n100nFilm capacitor, 7.2 x 2.5mm
C722n22nFilm capacitor, 7.2 x 2.5mm
C83n33.3nFilm capacitor, 7.2 x 2.5mm
C92u22.2uElectrolytic capacitor, 5mm
C1022u22uElectrolytic capacitor, 5mm
C111u1uElectrolytic capacitor, 5mm
C16100n100nFilm capacitor, 7.2 x 2.5mm
C2022u22uElectrolytic capacitor, 5mm
C10047u47uElectrolytic capacitor, 5mm
Diodes 1
D1001N58171N5817Schottky diode, DO-41
Transistors 5
Q1MPF4393MPF4393JFET transistor, N-channel*Alternate MMBF4393 (SMD)
Q2MPF4393MPF4393JFET transistor, N-channel*Alternate MMBF4393 (SMD)
Q3MPF4393MPF4393JFET transistor, N-channel*Alternate MMBF4393 (SMD)
Q4MPF4393MPF4393JFET transistor, N-channel*Alternate MMBF4393 (SMD)
Q5MPF4393MPF4393JFET transistor, N-channel*Alternate MMBF4393 (SMD) )
Potentiometers 4
PRESB50KB50k16mm right-angle PCB mount pot
TONEA1MA1M16mm right-angle PCB mount pot
VOLUMEA1MA1M16mm right-angle PCB mount pot
MASTERA250KA250k16mm right-angle PCB mount pot
Trimmers 2
TRIM110K10kTrim potentiometer (3362P style)
TRIM210K10kTrim potentiometer (3362P style)
Switches 1
SW1ON/ONON/ONToggle switch, DPDT (ON/ON)

Other boards based on the Catalinbread Formula No. 55