Ripping High Gain Oldschool Fuzz
Adjustable but not refined—an angry, raw, vintage-style 2-transistor fuzz with extra controls and tweaks to let you recreate oodles of classic fuzz sounds with minimum hassle
The Skreddy Pedals™ BC109 FUZZ is made from silicon transistors for power and temperature stability, but it's darkened so you can get germanium-ish effects out of it too.
The 2 transistors are piggybacked for better tone (smoother, lower noise than single transistors), giving this circuit 4 transistors total.
The extra controls let you emulate different classic fuzz tones from the 60's and early 70's along with improvements for some of the issues those early fuzzes had (noise reduction, adjustable tone, and input impedance selector switch). Can get frazzly or smooth, bright or dark.
This is a rude, biting fuzz that does not totally clean up with the volume knob; at very low guitar volume it's still slightly gritty sounding. So it's not one of those "leave on all the time" fuzzes; it's more of a "stomp for mayhem" type of fuzz! It's not just another Fuzz Face™ clone; it's more like a fuzz on steroids.
Classic Fuzz Tones
From thin and buzzy to clear and cutting to rich and thick and syrupy
Selectable input resistance lets it work great with humbuckers and get along with other effects too
Stable at all temperatures but very sensitive to guitar volume knob changes
Just leave the fuzz knob cranked or backed down a touch
True bypass, LED, standard 9v power jack
VOLUME This VOLUME control gives you a LOT more output volume than most classic fuzzes, with unity gain around noon and plenty of boost beyond that.
BIAS The BIAS control lets you go from buzzy and low-fi to clear, louder, and more present. Sometimes referred to as a "MIDS" control since it does give you more (or less) of those too.
VOICE The VOICE control lets you go from bright and articulate to smooth and syrupy with that lovely upper-harmonic emphasis you hear in classic fuzz recordings. It's really nothing more than an extra guitar tone control. This fuzz sounds so sweet with the tone rolled down that you will love having this dedicated control right where it's at, freeing up the guitar knobs for all your other applications.
FUZZ The FUZZ knob is the control that sets the gain for this whole thing. Most fuzzes of this type sound best with the fuzz turned either all the way up or dialed back just a touch from max.
HB / SC The HB / SC switch adds a bit of resistance to the input in order to keep a humbucker pickup from swamping the circuit and causing it to have a gated attack. But it's also useful for helping this fuzz work together with other effects (like to keep a wah pedal from making that siren sound you get from driving it into a vintage-style fuzz, or that extreme, trebly fuzz you get if you use a buffered pedal in front, for example).