Akashic Guitar effects circuit lookup
GAINBIASVOLUME

Enclosure not stated · 3 knobs

Effects Layouts (blog)

Kustom K200B Harmonic Clipper

Based on the Kustom K200B Harmonic Clipper

Category
Fuzz
Controls
Gain · Bias · Volume
Layout
Unverified · no build reported at Effects Layouts (blog) yet
Tags
Fuzz, Kustom

From the post

Found this over on the Tone Report Weekly and thought I'd make a PCB/perf layout for Fuzz Friday. It's based on the fuzz unit in old Kustom K200B amps and utilized by John Fogerty of CCR. The first 2 transistor stages are from the original units, with a Escobedo Duente boost at the output as a gain recovery stage. A lot of the credit for adapting the original circuit into pedal form goes to a group of cool dudes on DIYSB (pinkjimiphoton, digi2t, and a few other I'm probably forgetting) with the Suzi-Q.

Schematic

This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.

Parts list 28 rows

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Check before you build · 1 value the reader of this layout was not sure of
  • 640K at column 10, rows H-K: printed clearly, unusual value
RefValueNormalizedTypeNotes
Resistors 10
×1100Ω100read from the layout by eye
×11K1kread from the layout by eye
×12.2M2.2Mread from the layout by eye
×12.2K2.2kread from the layout by eye
×21M1Mread from the layout by eye
×1640K640kread from the layout by eye
×147K47kread from the layout by eye
×14.7K4.7kread from the layout by eye
×15.1K5.1kread from the layout by eye
×1100K100kread from the layout by eye
Capacitors 8
×110pF10pread from the layout by eye
×147pF47pread from the layout by eye
×151pF51pread from the layout by eye
×1100pF100pread from the layout by eye
×139nF39nread from the layout by eye
×147nF47nread from the layout by eye
×3220nF220nread from the layout by eye
×1100uF100uelectrolytic; read from the layout by eye
Diodes 3
D1??germanium, type not given; read from the layout by eye
D2??germanium, type not given; read from the layout by eye
×11N40011N4001read from the layout by eye
Transistors 3
Q12N70002N7000MOSFET; read from the layout by eye
Q22N70002N7000MOSFET; read from the layout by eye
Q3J201J201JFET; read from the layout by eye
Potentiometers 3
GainB100KB100kPotentiometerread from the layout by eye
BiasB50KB50kPotentiometerread from the layout by eye
VolumeB1MB1MPotentiometerread from the layout by eye
Trimmers 1
×1100K100kread from the layout by eye