Muffled Gun Fuzz

Some people prefer simplicity - less is more. Some like to tweak their knobs all night - this one's for you...

At its core this has similarities to a bubble font green Russian Big Muff but with a few tricks inside.

At the front of the circuit is a LPB pre-boost, enabling you to whack up the gain level and really push the fuzz circuit.

This Pre boost is complemented by the Focus pot which controls how much of the boosted frequency range gets through to the Fuzz.

The final extra control is a Mids pot, which does what you'd expect - shifts the midrange so you can tweak the tone to perfection. Not everyone likes the characteristic mid scoop after all.

That's a lot of controls on the face of a 1590B, but it works well, and even the most sausage-fingered of you should manage with the right choice of knobs - keep them small! Pots are only 17.5mm apart.

Now the downside - the board requires a small hack. Careless capacitor placement on the schematic means one cap needs to be bodged in. It's really simple - don't sweat it - check out the main image.

If you go for the vertical-mount pots they have round shafts - take that into consideration when ordering knobs - you'll need set-screw fitting. They're highly recommended on this build.

Partial kit: PCB, all board-mounted components, 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 only available 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.

Difficulty: Medium

PCB size: 50 x 50mm

Knobs required: 6 (15mm or less diameter)

Enclosure: 1590B

Direct-Connect compatible (4-way)




£38.40 inc. tax

£32.00 ex. tax
? Tax based on United Kingdom.

Customer Reviews

1 review(s) posted (write review)
A muff I can use! 5 product stars
"This was my first FuzzDog kit, but defintitely not my last. Really easy to build, and the daughterboard for the switch made things supersimple. Finally I have a muff type fuzz that I can use, great mid controls, nice and small and works well on bass too!" Thomas - 07/05/2016

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

Don't forget to download the appropriate daughterboard build document for your kit:
Standard 3PDT