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Dual Resonant Filter based on the Korg MS-20 Synth. Separate high pass and low pass filters in series with independent cutoff frequency and resonance controls for each filter and a master volume for the pedal. Includes expression control over cutoff with independent depth and direction controls for each filter.
Click here to read build guide
This PCB is sized for a 1590BBS / 125BB enclosure.
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Get ready to get loud. BlackBender combines a Tone Bender MkII with the legendary HM-2 EQ controls; a toggle switch allows you to select whether the mids are linked to the high EQ or separately tuned. Boards use ECBE pinout for compatibility with any NPN transistors.
Click here to read build guide
This PCB is sized for a 125B enclosure.
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This clone of the short-lived Boss XT-2 includes switchable mods to the Contour control.
Click here to read build guide
This PCB is sized for a 125B enclosure.
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One-knob fuzz with a twist: rather than adjusting the circuit itself, the knob on this guy is a blend control mixing between two different fuzzes. On the left side you have a thick, full range fuzz; all the way right is a tighter, more focused and searing lead sound.
Click here to read build guide
This PCB is 2.25" (5.7cm) square and will fit a 125B enclosure.
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A classic, no nonsense fuzz circuit in a few different varieties and sizes. NPN/Sziklai boards can be used for the standard 2-transistor NPN configuration or in a Sziklai configuration using two NPN/PNP pairs (four transistors total). PNP boards use a 7660S charge inverter for safe daisy chaining. All boards offer ECBE pinout for compatibility with any transistors.
Click here to read build guide
These PCBs will fit 1590A or 125B enclosures as indicated.
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DOD Phasor 201 surrounded by a pair of Overdrive/Preamp 250s. All circuits include mod switching.
Click here to read build guide
This PCB is sized for a 1590XX enclosure.