Akashic Guitar effects circuit lookup
GAINTREBLEMIDBASSVOLUME

Enclosure not stated · 5 knobs

Dirtbox Layouts

Black Arts Toneworks Quantum MysticVerified

Based on the Black Arts Toneworks Quantum Mystic· 4 other boards clone it

Category
Distortion
Controls
Gain · Treble · Mid · Bass · Volume
Build
Vero· 20×16· 22 cuts, 7 links
Layout
Verified · Dirtbox Layouts marks it as built and working
Tags
Black Arts, Distortion, Overdrive

From the post

Quad op amp version per as the original.

...and a 2x dual op amp version. For some reason it has some minor noise issues with the Mid and Volume controls cranked.

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 Dirtbox Layouts. No KiCad fragment has been drawn for this circuit yet.

Parts list 25 rows

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Check before you build · 2 values the reader of this layout was not sure of
  • Germanium diodes D1-D2: legend gives no part number
  • 3.6K ×2 in the lower right: printed clearly, unusual value
RefValueNormalizedTypeNotes
Resistors 8
×61M1Mread from the layout by eye
×210K10kread from the layout by eye
×11.5M1.5Mread from the layout by eye
×14.7K4.7kread from the layout by eye
×147K47kread from the layout by eye
×35.6K5.6kread from the layout by eye
×23.6K3.6kread from the layout by eye
×26.2K6.2kread from the layout by eye
Capacitors 8
×41uF1ufilm; read from the layout by eye
×247nF47nread from the layout by eye
×210nF10nread from the layout by eye
×139nF39nread from the layout by eye
×16.8nF6.8nread from the layout by eye
×11nF1nread from the layout by eye
×1100uF100uelectrolytic; read from the layout by eye
×210uF10uelectrolytic; read from the layout by eye
Diodes 3
D1GermaniumGERMANIUMlegend: Germanium, type not given; read from the layout by eye
D2GermaniumGERMANIUMlegend: Germanium, type not given; read from the layout by eye
D31N58171N5817read from the layout by eye
ICs 1
IC1TL074TL074read from the layout by eye
Potentiometers 5
GainC500KC500kPotentiometerread from the layout by eye
TrebleA500KA500kPotentiometerread from the layout by eye
MidB250KB250kPotentiometerread from the layout by eye
BassB100KB100kPotentiometerread from the layout by eye
VolumeA100KA100kPotentiometerread from the layout by eye

Other boards based on the Black Arts Toneworks Quantum Mystic