The WTF Octave Fuzz is a faithful tribute to one of the coolest fuzz pedals ever made—the Foxx Tone Machine. This pedal is Mudhoney in a box.

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SKU: WTF1 Category: Tags: , , , ,


The WTF Octave Fuzz is my tribute to one of the absolute coolest fuzz pedals ever made—the Foxx Tone Machine. I’ve made no secret about the fact that the Foxx Tone Machine is one of my absolute favorite fuzz pedal circuits. It’s the fuzz that got me into building pedals. It sounds super-gnarly on both guitar and bass. And it’s versatile enough to let you either take the lead, or sit back and fall into the mix. It also sounds really sick going into a wah pedal to boot. All of this is the reason that this is probably the fuzz pedal that I’ve built the absolute most of.

This special edition of the WTF Octave Fuzz features a one-of-a-kind, completely hand-crafted brass faceplate. No lie—I’ve lost blood bringing this faceplate into existence (don’t worry, the version that actually got blood on it was discarded). It was put together using one of my trusty WTFoxx PCBs available in the store using premium parts, so you know you’re getting a good quality build.

This is a high gain, silicon transistor fuzz that brings back tones from the early 1970’s. With its four transistors and two pairs of matched Germanium clipping diodes, the WTF is like the ManBearPig of fuzz pedals—its tonal quality lies somewhere in between a BMP, a Tonebender with an additional gain stage, and a Super-Fuzz. It is Mudhoney in a box.

Touch it. It’s sick.


  • Faithful clone of the Foxx Tone Machine, made with premium parts
  • Excellent on both guitar and bass
  • One-of-a-kind, custom artwork on a hand-crafted faceplate
  • True bypass
  • 100% Hand-made with high-quality components


  • FUZZ — Controls the amount of fuzz in the circuit.
  • OCTAVE — Switches the octave-up part of the effect on and off
  • TONE — Sweeps through the tone-shaping filter
  • VOLUME — Controls the amount of output volume.


  • Power: 9V DC, center negative. No battery compartment.
  • Consumption: less than 5mA


Coming soon!


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Return Policy

I gladly accept returns and exchanges.
Contact me within: 7 days of delivery
Ship items back within: 14 days of delivery

I do not accept cancellations on custom orders.
But please contact me if you have any problems with your order.

I cannot accept returns or exchanges for custom or personalized orders
unless the item arrives damaged or defective.

Conditions of Return:
Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.

Shipping Information

Processing Time:
Depending on availability, the time I need to prepare an order for shipping varies. For custom builds, please allow 3-4 weeks lead time. For finished builds, please allow 1-2 weeks for processing.

Estimated Shipping Times:
Eco Post: 7–5 business days estimated distribution time for most destinations (see below), 10–12 business days estimated distribution time to Australia and Hong Kong.
Registered Mail: 4–8 weeks
I will do my best to meet these shipping estimates, but cannot guarantee them. Actual delivery time will depend on the shipping method you choose.

*** UPDATE***
Postal systems around the world appear to still be adapting to the global impact of COVID-19. This means that shipping times may be longer than we had previously been used to. I ask that you please be patient while we track the status of your package together.

Shipping Methods:
I ship out all pedal orders via Eco Post. This method is typically quicker than Registered Mail (advertised estimation is 7–5 business days, but due to the current situation has been known to take a bit longer, depending on the country), and it also features computerized tracking and proof of delivery.
This method is available in the following countries: Austria, Australia, Italy, Ireland, the United States, Belgium, Brazil, the United Kingdom, Germany, Denmark, South Korea, the Netherlands, Hong Kong, Greece, Japan, Norway, Spain, Poland, Portugal, Finland, France, Canada , Sweden, Switzerland, Thailand, Russia.

For PCB orders, you can choose between Eco Post and Registered Mail.

Customers living in Israel can arrange for Local pickup, just contact me for arrangements.

Customs and Import Taxes:
Buyers are responsible for any customs and import taxes that may apply. I am not responsible for delays due to customs.


Each Carcharias Effects pedal is hand-made by one person in his home workshop who loves making music, and making things that make music. Every purchase you make enables me to continue making more pedals, so your support is very much appreciated. That said, I take responsibility for the build quality of every pedal I make comes, and offer a 24-month warranty on each one, not covering normal wear-and-tear or abuse.

All the PCBs that I sell on this site were designed personally by me, but the fabrication is outsourced to third-party PCB fabrication services. Once they are designed, I order them in relatively small batches. I personally test every batch that I receive; however, as I am a strong believer in minimizing waste, there are cases in which I may sell perfectly functioning PCBs that might have some design flaw. I take responsibility for these design flaws (if any) and will specify their fixes or workarounds in the product's specific build document.

If you should encounter any issues with your product, please feel free to reach out to me via the contact form on this website. As I am based in Israel, I understand the inconvenience added by international shipping, and so I will be happy to assist in troubleshooting with you any problems before resorting to international shipping in case a repair needs to be made.