Akashic Guitar effects circuit lookup
GAINTREBLEBASSMIDPRESENCEVOLUME

1590BB · 6 knobs

Tagboard Effects

Dr BoogieVerified

Based on the Dr Boogie· 6 other boards clone it

Controls
Gain · Treble · Bass · Mid · Presence · Volume
Build
Vero· 32×11· 19 cuts, 2 links
Layout
Verified · Tagboard Effects marks it as built and working
Tags
Amp Emulation, Distortion

From the post

ElectricTabs emulation of a Mesa Boogie Dual Recitifer Solo Head. I haven't even attempted to keep this one down in size (width) because with 6 pots no one is going to be putting this in anything smaller than a 1590BB, so you should have plenty of room in there with this being a relatively shallow layout (in height):

And V2 of the layout based on gaussmarkov's improvements:

Video of Geiri's build:

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 Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.

Parts list 31 rows

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Check before you build · 2 values the reader of this layout was not sure of
  • 5n near the bottom centre, left of the 330K: printed clearly, unusual value
  • 3n at lower right, between 22K and 22n: printed clearly, unusual value
RefValueNormalizedTypeNotes
Resistors 11
×31K81.8kread from the layout by eye
×21M1Mread from the layout by eye
×2470K470kread from the layout by eye
×12M22.2Mread from the layout by eye
×1680K680kread from the layout by eye
×1330K330kread from the layout by eye
×1220K220kread from the layout by eye
×147K47kread from the layout by eye
×122K22kread from the layout by eye
×110K10kread from the layout by eye
×13K93.9kread from the layout by eye
Capacitors 8
×622n22nread from the layout by eye
×21n1nread from the layout by eye
×15n5nread from the layout by eye
×13n3nread from the layout by eye
×120p20pread from the layout by eye
×1680p680pread from the layout by eye
×31u1udrawn as a box capacitor with a polarity bar; read from the layout by eye
×1100u100uelectrolytic; read from the layout by eye
Transistors 5
Q1J201J201JFET; read from the layout by eye
Q2J201J201JFET; read from the layout by eye
Q3J201J201JFET; read from the layout by eye
Q4J201J201JFET; read from the layout by eye
Q5J201J201JFET; read from the layout by eye
Potentiometers 6
GainA1MA1MPotentiometerread from the layout by eye
TrebleA220KA220kPotentiometerread from the layout by eye
BassA1MA1MPotentiometerread from the layout by eye
MidB22KB22kPotentiometerread from the layout by eye
PresenceB100KB100kPotentiometerread from the layout by eye
VolumeA1MA1MPotentiometerread from the layout by eye
Trimmers 1
×4100K100kdrain trimmers for Q1-Q4; read from the layout by eye

Other boards based on the Dr Boogie