Akashic Guitar effects circuit lookup
GAINMIXVOLUME

Enclosure not stated · 3 knobs

Tagboard Effects

Joe Davisson ShocktaveVerified

Based on the Joe Davisson Shocktave· 1 other board clones it

Category
Fuzz
Controls
Gain · Mix · Volume
Build
Vero· 20×11· 16 cuts, 7 links
Layout
Verified · Tagboard Effects marks it as built and working
Tags
Fuzz, Octave

From the post

For some reason none of us got my CJ Downbox v2 layout to work. That was a bit of a mystery since the schematic was working correctly on my breadboard, but even though the layout did not have any errors, the flip-flop simply refused to work. I had taken the layout down a long ago and almost forgotten about the whole thing. Until a few nights ago. I was watching some DS9 episodes and skimmed through my ever growing schematics folders. I noticed this one. It's Joe Davisson's Shocktave, dated 2005. This time, as we had one utter failure with the similar design, i decided to build it first and post it if it would work. And what do you know. It works. Low octave fuzz not completely unlike the MXR Bluebox, but with a lot lower parts count. Tracking goes wild very easily, but you can tune the mix control to have quite massive and cool low octave walls with this circuit. Output level doesn't feel luggish, so for all of you who enjoy dirty and noisy low octaves, here you go.

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 16 rows

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RefValueNormalizedTypeNotes
Resistors 6
×21M1Mread from the layout by eye
×410K10kread from the layout by eye
×1220K220kread from the layout by eye
×14.7M4.7Mread from the layout by eye
×147K47kread from the layout by eye
×2100K100kread from the layout by eye
Capacitors 4
×5100nF100nread from the layout by eye
×1470nF470nread from the layout by eye
×11uF1uelectrolytic; read from the layout by eye
×110uF10uelectrolytic; read from the layout by eye
Diodes 2
D11N41481N4148read from the layout by eye
D21N58171N5817read from the layout by eye
Transistors 1
×52N50892N5089all transistors; read from the layout by eye
Potentiometers 3
GainB2KB2kPotentiometerread from the layout by eye
MixA1MA1MPotentiometerread from the layout by eye
VolumeA100KA100kPotentiometerread from the layout by eye

Other boards based on the Joe Davisson Shocktave