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The Gimp - Filthy Fack with added OOMPH!

Who doesn't love the Filthy Fack!? Five knobs of germanium fuzz fun.

Now let's take that one step further and add a few tweaks to make it a whole lot more useful and, well... fun.

First tweak is a Girth control, which will give you a variable version of the Fat knob on the Filthy Fack. Not so noticeable when playing with normal fuzz settings, but turn the Sanity (Stab) pot down into oscillation mode and the extra frequencies running around the circuit become very apparent, totally changing the nature of the oscillations.

Next up is the Sanity bypass footswitch, giving you two completely different beasts with a single stomp of the foot. With it bypassed you're giving the circuit the full 9V of power it wants. Kick it and the Sanity pot comes into play, starving it just how you want and unleashing the beastly oscillations. For extra fun you could have this as a momentary switch - an Alpha DPDT will fit into two columns of the three-column pads - but you'll have to think about offsetting your footswitch holes when drilling to compensate.

The kit is supplied with vertical-mount pots which have round shafts, so you'll need set-screw fitting knobs.

Controls are: Girth (Fatness), Grunt (Gain), Thrust (Vol), Sanity (Stability), Gag (Gate), Choke (Comp)

Supplied with AC128/AC125 germanium transistors.


If you want the PCB without parts there's a link for that at the bottom of the page.

Partial kit: PCB, all board-mounted components (not footswitches), pots.

Full kit: As above, plus footswitch and appropriate daughterboard/components for your selected bypass type (see Downloads section for details of those), jack sockets, DC socket, battery snap, hook-up wire, LED.

Enclosure (pre-drilled) is available as an option with full kits, and will not take a battery. Knobs are not included.

Builds are only available with full kits including enclosures. Please choose appropriate knobs.


Inspired by: Fuzz Factory

Difficulty: Medium

PCB size: 80 x 40mm / 80 x 20mm

Knobs required: 6

Enclosure: 1590BB


Download the INSTRUCTION PDF

Gimp

New

£50.40 inc. tax

£42.00 ex. tax
? Tax based on United Kingdom.
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Customer Reviews

1 review(s) posted (write review)
Looks and sounds demonic 5 product stars
"Took me about 3 hours to complete the kit, not having done a project in a few years I took my time. When I first plugged it in, I thought I had broken something as the noise level was horrendous. Once I started playing, it was just amazing. The two red LEDs look like a demon's eyes, and the sound fits. There's a massive range of sounds, and the sanity foots witch is really useful. I would highly recommend this pedal!" Noiseguy - 23 April 2016

Don't forget to download the 
General Build Guide

 

PRE-BUILT KITS:
We're only building for UK customers right now. Please don't order from elsewhere as we'll simply have to refund you.  

PLEASE NOTE:
Full kits DO NOT include enclosures unless you select them in the 'Kit Type' drop-down menu.