FuzzPup Rodent

This is part of our FuzzPup range of circuits designed for 1590A builds. Please read the general build doc available here and ensure you're happy with what's involved. They're not especially difficult, but working in a confined space can be fiddly. Take heed. This kit is especially tight so you must be absolutely 100% happy with tight work to take it on.

Of course there's nothing stopping you using these PCBs for 'standard' builds. They're Direct Connect compatible.

A different PCB is available for 'standard' 1590B builds - see the related products listed below.

The Rat is worthy of a place on any pedalboard, and comes in three flavours to satisfy most tastes.

Different clipping diodes give the trio of nibblers their distict sound, so take your pick:

  • 1n4148 - traditional rat clipping. Nice and hard.
  • Red LEDs - Turbo version. Nice and harder!
  • 1n34A germaniums - You Dirty version. Softer, muddier, sludgier.

There's also the option of an internal trimmer for the Ruez response mod if you're a tweaker.

NOTE: Kits are supplied with 0.125W resistors, which are tiny. If you go for LED clipping you'll have to bend the legs to fit the spots on the PCB - no biggy.

Currently only available with OP07 op-amp. If we find a reliable source of LM308 we'll stock 'em.

All this gnawing fun in a 1590A enclosure.

You can include a neat daughterboard to mount the three pots onto, making wiring them up a *little* easier - just nine straight wires from PCB to PCB rather than messing with those skinny little pot legs.

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. Only available with the DC socket on the top edge. Knobs are not included.

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

Difficulty: Hard/Very Fiddly

PCB size: 30 x 50mm

Knobs required: 3

Enclosure: 1590A


Please also read this general guide to FuzzPup builds.

Note: image with circuit board in the enclosure is to illustrate the way this kit connects.


Pedal Parts



£31.20 inc. tax

£26.00 ex. tax
? Tax based on United Kingdom.

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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