Enclosure not stated · 5 knobs
EarthQuaker Devices Palisades
Based on the EarthQuaker Devices Palisades· 4 other boards clone it
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
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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
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×7 | 10K | 10k | read from the layout by eye | |
| ×6 | 1K | 1k | read from the layout by eye | |
| ×3 | 1M | 1M | read from the layout by eye | |
| ×2 | 22K | 22k | read from the layout by eye | |
| ×2 | 560K | 560k | read from the layout by eye | |
| ×2 | 100R | 100 | read from the layout by eye | |
| ×1 | 330R | 330 | read from the layout by eye | |
| ×1 | 10M | 10M | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 4K7 | 4.7k | read from the layout by eye | |
| Capacitors 12 | ||||
| ×5 | 1u | 1u | four film, one ceramic; read from the layout by eye | |
| ×2 | 68n | 68n | read from the layout by eye | |
| ×2 | 100n | 100n | read from the layout by eye | |
| ×1 | 33n | 33n | read from the layout by eye | |
| ×1 | 220n | 220n | read from the layout by eye | |
| ×1 | 330n | 330n | read from the layout by eye | |
| ×1 | 150n | 150n | read from the layout by eye | |
| ×1 | 47p | 47p | read from the layout by eye | |
| ×1 | 100p | 100p | read from the layout by eye | |
| ×2 | 10u | 10u | electrolytic; read from the layout by eye | |
| ×1 | 47u | 47u | electrolytic; read from the layout by eye | |
| ×1 | 100u | 100u | electrolytic; read from the layout by eye | |
| Diodes 3 | ||||
| ×3 | 1N916 | 1N916 | D4, D5, D6; read from the layout by eye | |
| ×2 | BAT41 | BAT41 | D7, D8; BAT41 or BAT43; read from the layout by eye | |
| ×2 | 1N4148 | 1N4148 | D9, D10; read from the layout by eye | |
| Transistors 3 | ||||
| ×2 | 2N7000 | 2N7000 | MOSFET; read from the layout by eye | |
| ×2 | MPSA18 | MPSA18 | read from the layout by eye | |
| ×1 | MPSA13 | MPSA13 | read from the layout by eye | |
| ICs 1 | ||||
| IC | LM833 | LM833 | read from the layout by eye | |
| Potentiometers 5 | ||||
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
| Boost | B100K | B100k | Potentiometer | read from the layout by eye |
| Gain A | A500K | A500k | Potentiometer | read from the layout by eye |
| Gain B | B1M | B1M | Potentiometer | read from the layout by eye |
| Tone | B5K | B5k | Potentiometer | read from the layout by eye |
| Switches 6 | ||||
| Bandwidth | 2P6T rotary | 2P6T ROTARY | Switch 1, set on 5; read from the layout by eye | |
| Voice | 2P6T rotary | 2P6T ROTARY | Switch 2; read from the layout by eye | |
| Boost | 3PDT | 3PDT | Switch 3, footswitch; read from the layout by eye | |
| Gain | DPDT | DPDT | Switch 4, footswitch; read from the layout by eye | |
| Buffer | SPDT | SPDT | Switch 5; read from the layout by eye | |
| Bright | SPDT | SPDT | Switch 6; read from the layout by eye | |
| LEDs 2 | ||||
| D1 | 3mm Diffused Red LED | 3MM DIFFUSED RED LED | on board; read from the layout by eye | |
| ×2 | 3mm Green LED | 3MM GREEN LED | D2, D3; on board; read from the layout by eye | |
Other boards based on the EarthQuaker Devices Palisades
- Earthquaker Devices Palisades Dirtbox Layouts
- Earthquaker Devices Palisades Effects Layouts (blog)
- Watch Tower Overdrive (Palisades inspired) PCB Guitar Mania · 1590XX · €14.90
- Stockade Overdrive PedalPCB · 1590XX · $15.00