Akashic Guitar effects circuit lookup
VOLUMEBOOSTGAIN AGAIN BTONE

Enclosure not stated · 5 knobs

Tagboard Effects

EarthQuaker Devices Palisades

Based on the EarthQuaker Devices Palisades· 4 other boards clone it

Category
Overdrive
Controls
Volume · Boost · Gain A · Gain B · Tone
Difficulty
Difficult
Build
Vero· 23×23· 42 cuts, 17 links
Layout
Unverified · no build reported at Tagboard Effects yet
Tags
EarthQuaker Devices, EQD, Overdrive, Palisades, Tubescreamer

From the post

Original info:

"The Palisades is something we said we would never do… an overdrive based on the legendary TS808! Gasp! The horror! Another tubes creamer?? In 2014?? Really?? After loads of requests we finally buckled. We ran tests with every popular clone on the market as well as several vintage originals, compared, contrasted and took loads of notes. It was exhausting but informative. In the end, we threw it all away, used our ears and came up with what we feel is the most versatile relative of the 808 available today.

With 6 different clipping voices, 5 bandwidth settings and 2 gain channels you will be hard-pressed to not find a setting that will wipe every mid-boosting overdrive off your board. The clipping voices determine how transparent and open or tight and crunchy the distortion is. They will vary drastically depending on where the gain is set, what channel is active and how much bandwidth is being used. The bandwidth sets the frequency response of the distortion and goes from thin, light and clean through fat heavy and crunchy. It may very well be the single most important control the palisades has and what really sets it apart.

Gain A is a lower gain channel with a wider range of grit that is great for strumming open chords. Gain B is a higher gain channel with a tighter range that is great for palm muting and/or shredding solos. The Palisades also has a foot switchable volume boost with adjustable level to take it over the top when you want to throw your foot up on the monitor and rip your sweet leads… or maybe just push the front end of you amp a little harder. Not enough? How about a normal/bright switch to mix and match the overall tone to different amps and guitars. Still not enough? OK then, how about a buffer on/off switch to tighten up the tone and make it sparkle when set to “ON” or warm it up and make it sag when set to “OFF”."

Original FSB thread and schematic (still unverified) available here.

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 42 rows

Report a wrong parse

Got parts in a drawer? See what you can build with them.

Check before you build · 1 value the reader of this layout was not sure of
  • 1M vs 1u at the left edge beside SW 5: the full image suggests two 1M side by side, the zoom shows one 1M resistor and a 1u film cap; counted as the zoom shows
RefValueNormalizedTypeNotes
Resistors 10
×710K10kread from the layout by eye
×61K1kread from the layout by eye
×31M1Mread from the layout by eye
×222K22kread from the layout by eye
×2560K560kread from the layout by eye
×2100R100read from the layout by eye
×1330R330read from the layout by eye
×110M10Mread from the layout by eye
×1100K100kread from the layout by eye
×14K74.7kread from the layout by eye
Capacitors 12
×51u1ufour film, one ceramic; read from the layout by eye
×268n68nread from the layout by eye
×2100n100nread from the layout by eye
×133n33nread from the layout by eye
×1220n220nread from the layout by eye
×1330n330nread from the layout by eye
×1150n150nread from the layout by eye
×147p47pread from the layout by eye
×1100p100pread from the layout by eye
×210u10uelectrolytic; read from the layout by eye
×147u47uelectrolytic; read from the layout by eye
×1100u100uelectrolytic; read from the layout by eye
Diodes 3
×31N9161N916D4, D5, D6; read from the layout by eye
×2BAT41BAT41D7, D8; BAT41 or BAT43; read from the layout by eye
×21N41481N4148D9, D10; read from the layout by eye
Transistors 3
×22N70002N7000MOSFET; read from the layout by eye
×2MPSA18MPSA18read from the layout by eye
×1MPSA13MPSA13read from the layout by eye
ICs 1
ICLM833LM833read from the layout by eye
Potentiometers 5
VolumeA100KA100kPotentiometerread from the layout by eye
BoostB100KB100kPotentiometerread from the layout by eye
Gain AA500KA500kPotentiometerread from the layout by eye
Gain BB1MB1MPotentiometerread from the layout by eye
ToneB5KB5kPotentiometerread from the layout by eye
Switches 6
Bandwidth2P6T rotary2P6T ROTARYSwitch 1, set on 5; read from the layout by eye
Voice2P6T rotary2P6T ROTARYSwitch 2; read from the layout by eye
Boost3PDT3PDTSwitch 3, footswitch; read from the layout by eye
GainDPDTDPDTSwitch 4, footswitch; read from the layout by eye
BufferSPDTSPDTSwitch 5; read from the layout by eye
BrightSPDTSPDTSwitch 6; read from the layout by eye
LEDs 2
D13mm Diffused Red LED3MM DIFFUSED RED LEDon board; read from the layout by eye
×23mm Green LED3MM GREEN LEDD2, D3; on board; read from the layout by eye

Other boards based on the EarthQuaker Devices Palisades