MUON
Dirty Boost
The MUON is a highly musical dirty boost inspired by the Analogman Bad Bob. While the original uses 2N5457 JFETs for a cleaner response, the MUON is built around NOS J201 JFETs, which break up earlier and deliver tube-like saturation that reacts dynamically to your pickups and playing style. An additional JFET buffer stage preserves high-end sparkle through long cable runs. A single volume control and a Dirt toggle give you everything from edge-of-breakup shimmer to thick, saturated drive.
$95
FREE SHIPPING
Free Germanium Clipper Keychain included
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NOS J201 JFETs for Tube-Like Response
JFETs share the same square-law transfer characteristics as triode vacuum tubes, with high input impedance and soft clipping behavior that delivers natural, harmonically rich saturation. At the heart of the MUON are NOS J201 JFETs, chosen for their warm, dynamic character that reacts beautifully to your picking attack and guitar volume.
Cascode Topology with Dirt Toggle
The circuit is based on a cascode (mu-amp) topology, a design borrowed directly from tube amplifier schematics and translated to silicon. An additional JFET stage preserves clarity and punch even through long cable runs. In standard mode, single coils deliver touch-sensitive breakup at the edge of saturation. Roll back your guitar's volume for sparkle, dig in for grit. With humbuckers, expect more gain even in standard mode; use your volume knob to dial it back or lean into the thickness. Engage the Dirt switch for richer saturation, added harmonics, and amp-like sustain that pushes single coils into overdrive territory and humbuckers toward distortion.
Sound Samples
Hear the MUON in action. Same riff, different settings.
NOS J201 JFET
The J201 is one of the most sought-after JFETs in boutique pedal building, prized for its tube-like warmth and dynamic response. These components are increasingly scarce, and their electrical characteristics vary widely between devices. Only a select few meet the precise specifications required for our circuits. Many builders have resorted to surface-mount alternatives, but we source and hand-test NOS through-hole J201s for that irreplaceable vintage mojo.
Learn more about our components →MUON Specifications
Components
- NOS J201 JFETs
- Switchcraft audio jacks
- Alpha potentiometer
- Gorva soft-clicking foot switch
- Lumberg power jack
- UV-colored (purple) LED indicator
Features
- True bypass switching
- A unique hand-sewn pouch
Enclosure
- Hammond 1590A enclosure
- Copper mounting washers
- 48mm x 95mm x 48mm
- 152g
Power
- 9V DC center-negative power only
- 10 mA max current
Included with Purchase
- Germanium Clipper Keychain (1N4381)
- Two guitar picks
Included Free
Germanium Clipper Keychain
Every pedal ships with a free Germanium Clipper Keychain: a fully functional passive clipping circuit on your keys. Two germanium diodes create real harmonic saturation. Clip it into your signal chain in an emergency, or just enjoy carrying a piece of vintage tone wherever you go.
Learn MoreWarranty
All UV Effects pedals come with a 1-year warranty that covers any defects in parts or workmanship. If something goes wrong under normal use, we'll repair or replace the pedal at no charge.
This warranty applies only to the original purchaser and is not transferable. It doesn't cover damage caused by misuse, incorrect power supplies, accidental damage, or user modifications.
Returns & Shipping
Returns are accepted within 14 days of delivery. Items must be in like-new condition with all original packaging. A restocking fee of up to 25% may apply for pedals that show wear or are incomplete.
Orders are processed quickly and shipped from Colorado. For questions, contact us at daniel@uveffects.com.
Frequently Asked Questions
Why does the MUON cost more than other single-stage pedals?
The MUON is built around NOS J201 JFETs, which are becoming extremely scarce. These vintage components are essential to the MUON's tube-like response and dynamic character. As supply dwindles, sourcing tested, matched J201s has become more difficult and expensive.
Ready to add a MUON to your pedalboard?