-6% Used In Stock

A rare, one-off Frankenbender Mk1, built by a builder, for a builder

This is a Used Pedal in our Grade 3 - Good Condition

Mustard FX Frankenbender Mk1 Germanium Fuzz FX Pedal [Used]

Name: Mustard FX Frankenbender Mk1 Germanium Fuzz FX Pedal [Used]
Brand: Mustard FX
Price: 329.99 GBP
Availability: InStock

The Frankenbender is a Mustard FX take on a MK1 Tonebender. This special unit is Sola tuned with a load of extra gain.

The Mustard FX Frankenbender Mk1 is a unique fuzz box, originally crafted as a special one-off for another pedal builder, making it a rare find with true collector’s appeal.

£329.99 ~~Sale price£349.99you save £20.00~~

*This is a Used Pedal in our Grade 3 - Good Condition

The Mustard FX Frankenbender Mk1 Germanium Fuzz is not just another boutique fuzz, it’s a rare, one-off build with serious pedigree. Originally crafted as a special project for another pedal builder, this Frankenbender carries the spirit of collaboration and experimentation at its core.

Housed in a repurposed Octavia enclosure, this tight-fit build squeezes a full Tone Bender Mk1 circuit into a compact footprint. It's Sola tuned with a load of extra gain.

The circuit features Hunts/Phillips capacitors, a trio of carefully selected Mullard germanium transistors OC81, OC7B and OC78, salvaged from vintage radios along with the Carbon comp Resistors, delivering a fuzz that’s crunchy, powerful, and loaded with vintage character.

Because of its size, a voltage inverter couldn’t make the cut, so this pedal sticks to classic battery operation, keeping it as old school as the tones it produces. With its rare backstory, compact design, and authentic Mk1 voicing, this Frankenbender isn’t just a fuzz pedal, it’s a piece of fuzz folklore.

This is a 'used' pedal, in our Grade 3 good condition, with a few enclosure scuffs and chips, and doesn't come with the original box.

Mustard FX Frankenbender Mk1 Germanium Fuzz FX Pedal [Used]

£329.99~~£349.99~~

Our 'Used' Pedal Reviews

All the reviews we've received for used pedals, so you know you're in safe hands with our pre-owned gear.

Durham Zia Drive

The Durham Electronics Zia Drive has been on my gigging board for many years.
It is perfect for vibrant chord playing and punches through the mix. The original one I had was replaced by this one from Pedal Jungle, after looking for one for quite some time. They are now hard to source in Europe. I have corresponded with Al Durham (Texas) and he has event built me a pedal, the Zia Drive is his best for my purposes, it just sounds like an extension of the amp.

HI William. Thanks so much for the purchase and for taking the time to review. Cheers, Paul.

Perfect second hand buy!

I’d had my eye on this pedal for ages but couldn’t quite justify it, even though every said it’s their ride-or-die, always-on pedal. It came up second hand in the Jungle and I had to go for it and I’m so glad I did! Perfectly packaged, quick delivery and a great price. Couldn’t be happier.

Hey Paul, thanks for the purchase and kind words mate, it really is appreciated. Glad to hear you're happy with the pedal and we're doing our used FX service justice. Cheers, Paul

J Rockett Lenny

Great pedal, outstanding service from Pedal Jungle!

Hi Darren, thanks for the support and purchase mate, much appreciated. Glad to hear you're happy with the pedal mate. Paul

Exotic compressor

This pedal is the best I’ve ever used , the service from Paul and Sian is amazing, this was the second time I’ve used them and the way they keep you up to date by email about all things pedal jungle , first class service

Hi Stuart. Thanks so much for the kind words and the purchase mate, and great to hear we're doing OK with our service too. Thanks again, Paul

Super cool Zonk!

I enjoy the zonk sound and this really has few extras up its sleeve with the filter and bias controls. Filter sculpts the low end as fuzz can have "too much" or not enough, it means you can control "fattness". Bias has a range of sounds available from spitting gated fuzz or girthy full on fuzz. Spectacular find and utterly love the design and size of it. Plays with single coils or humbuckers! Choose your weapon and have fun!

Cheers once again Kris. Thanks so much for the purchase and review mate. Paul

Excellent Service..

Quick to help. Sent more photos immediately. Condition very accurate. Highly recommended.

Hi Alastair. Many thanks for your purchase and review. Paul

Boss DD-7 Digital Delay FX Pedal [Used]

Purchased a delay pedal to add to my chain and add some slap back. The pedal does loads more besides. Great condition. Thank you again.

Thanks Karl, much appreciated for the purchase and kind words mate. Enjoy! Cheers, Paul.

Quality Boost

This boost adds superb sparkle and dynamics to your clean tone, and can also be used to push your amp hard. Would highly recommend Benson, and Pedal Jungle who delivered it very speedily!

Hey Chris, thanks so much once again for the purchase mate, your continued support has been amazing. Glad you're happy with the BB, such a great pedal. Cheers, Paul.

Fender The Pinwheel Rotary Speaker Emulator FX Pedal [Used]

Hey Peter, thanks for the purchase once again and glad you like the Pinwheel. Cheers, Paul

Cornerstone Music Gear Imperium Dual Drive FX Pedal

Loving it, might be five stars when I’ve fully dialled it in! It’s on my battery-powered board (Mission 529 + 20GB) with tuner, and Flint… will be playing Colne Blues Festival on Sunday 24th August at 2pm…

Hey David, thanks for the review mate, glad to know you're enjoying the Imperium. Cool little pedal for sure, and many thanks again for your purchase. Paul.

1 2

Mustard FX

Hear The Frankenbender Mk1 Demo

Want to know more?

Pedal Details & Features

USED Pedal
Grade 3 - Good
Effect: Fuzz
No box
Take on the classic Tonebender Mk1
Sola tuned with extra gain
Unique one-off unit
Originally built for another pedal builder
Hunts/Phillips capacitors
A trio of carefully selected Mullard germanium transistors OC81, OC7B and OC78
Parts salvaged from vintage radios
Carbon comp Resistors
The board itself cut from a radio and drilled in house
Hand built in the U.K
Powered by 9V battery

Used Grading

All used items have been fully checked here at Pedal Jungle and are in a fully working order. The grading represents the cosmetic condition of the item, not the usability.

5– The item is in “like new” mint condition with no discernible cosmetic wear, and no signs of velcro. The original box and any accessories will also be present.

4– The item is in excellent condition but may show some very small signs of use. This could include small scuff, scratch or dent, or a light tarnishing to the enclosure, or small signs of velcro. This may or may not include the original box and accessories.

3– The item is in good condition but will show clear signs of use. This can include multiple scratches, scuffs, dents or velcro marks. This may or may not include the original box and accessories.

2– The item has lots of wear and tear including scratches, dents, chips, tarnishing, or velcro marks etc. This may or may not include the original box and accessories.

1– The item has been heavily used with lots of wear and tear. This can include deep scratches, large chips, heavy tarnishing, strong discolouration or velcro marks. This may or may not include the original box and accessories.

Delivery Information

Shipping

Free UK RM48 shipping from orders of £120 or more
Orders despatched within 1-2 working days
Always tracked worldwide shipping
Plastic free packaging as standard

Returns

30 day peace of mind No-Fuss returns policy, but please read our terms and conditions, returns and refunds policy before placing an order.

More Used

Epic pre-loved units looking for a new home

View all products

Rorschach Devices Apophenia Delay FX Pedal [Used] - Pedal Jungle

£199.99

Rorschach Devices Apophenia Delay FX Pedal [Used]

A truly unique delay with glowing ambience for deep, atmospheric sound design

🔥 New Used In Stock

JPTR FX Warlow Fuzz Limited Edition TRVE FX Pedal [Used] - Pedal Jungle

£119.99

JPTR FX Warlow Fuzz Limited Edition TRVE FX Pedal [Used]

Rare & Limited run TRVE Warlow Fuzz - Only 50 units originally made

🔥 New Used In Stock

Empress Effects Heavy Dual Channel Distortion FX Pedal [Used] - Pedal Jungle

£184.99

Empress Effects Heavy Dual Channel Distortion FX Pedal [Used]

Super high gain, all analog, dual channel distortion

🔥 New Used In Stock

Old Blood Noise Endeavors Minim Reverb, Delay & Reverse FX Pedal [Used] - Pedal Jungle

£189.99

Old Blood Noise Endeavors Minim Reverb, Delay & Reverse FX Pedal [Used]

All in one unit that blends reverb, modulated delay and reverse

🔥 New Used In Stock

Sentimental Bob Electronics Tacana Tremolo FX Pedal [Used] - Pedal Jungle

£109.99

Sentimental Bob Electronics Tacana Tremolo FX Pedal [Used]

A tremolo pedal with 16 waveforms, hold function & clean boost capability

🔥 New Used In Stock

Ground FX Lux Reverb FX Pedal [Used] - Pedal Jungle

£149.99

Ground FX Lux Reverb FX Pedal [Used]

A reverb perfect for ambient, shoegaze & tone layering

🔥 New Used In Stock

Electro - Harmonix Attack Decay Tape Reverse Simulator FX Pedal [Used] - Pedal Jungle

£99.99

Electro-Harmonix Attack Decay Tape Reverse Simulator FX Pedal [Used]

A modern revival of one of EHX’s most coveted vintage circuits

🔥 New Used In Stock

Tate FX Booster (Skull) Clean Boost FX Pedal [Used] - Pedal Jungle

£79.99

Tate FX Booster (Skull) Clean Boost FX Pedal [Used]

Handmade U.K build, up to 15dB of transparent boost

🔥 New Used In Stock

Matthews Effects The Astronomer Reverb FX Pedal [Used] - Pedal Jungle

£129.99

Matthews Effects The Astronomer Reverb FX Pedal [Used]

Rare V1 dual-channel shimmer/hall reverb

🔥 New Used In Stock

Korg Pitchblack XS Chromatic Tuner Utility Pedal [Used] - Pedal Jungle

£49.99

Korg Pitchblack XS Chromatic Tuner Utility Pedal [Used]

Compact & bright tuner with 4 display modes

🔥 New Used In Stock

Anasounds Utopia Mk2 Delay Limited Edition White FX Pedal [Used] - Pedal Jungle

£199.99

Anasounds Utopia Mk2 Delay Limited Edition White FX Pedal [Used]

A MK2 analog style delay in limited edition white

🔥 New Used In Stock

Jam Pedals Ripply Fall Modulation Bass FX Pedal [Used] - Pedal Jungle

£249.99

Jam Pedals Ripply Fall Modulation Bass FX Pedal [Used]

Analog chorus, vibrato & phaser in one, redesigned for bass

🔥 New Used In Stock

Red Beard Effects Angry Rhubarb Paradynamic Overdrive MK2 FX Pedal [Used] - Pedal Jungle

£129.99

Red Beard Effects Angry Rhubarb Paradynamic Overdrive MK2 FX Pedal [Used]

Two overdrive circuits either side of an extremely interactive EQ

🔥 New Used In Stock

Analog Music Company So High So Low Filter & Preamp Mk3 FX Pedal [Used] - Pedal Jungle

£199.99

Analog Music Company So High So Low Filter & Preamp Mk3 FX Pedal [Used]

MS-20 & Moogerfooger inspired with HP/LP filters & pink finish

🔥 New Used In Stock

Polarbear Effects Young Hearts Delay FX Pedal [Used] - Pedal Jungle

£229.99

Polarbear Effects Young Hearts Delay FX Pedal [Used]

A PT2399 lo-fi delay with VCR style textures

🔥 New Used In Stock

Old Blood Noise Endeavors Dark Star Stereo Soundscape Reverb FX Pedal [Used] - Pedal Jungle

£239.99

Old Blood Noise Endeavors Dark Star Stereo Soundscape Reverb FX Pedal [Used]

A reverb loaded with a full suite of expansive ambient tools

🔥 New Used In Stock

Matthews Effects The Surgeon V2 Delay FX Pedal [Used] - Pedal Jungle

£169.99

Matthews Effects The Surgeon V2 Delay FX Pedal [Used]

A precise delay with 8 different different modes

🔥 New Used In Stock

Boss TE - 2 Tera Echo FX Pedal [Used] - Pedal Jungle

£99.99

Boss TE-2 Tera Echo FX Pedal [Used]

Dynamic ambient echoes using MDP processing

🔥 New Used In Stock

Tate FX Raise The Dead Fuzz FX Pedal [Used] - Pedal Jungle

£99.99

Tate FX Raise The Dead Fuzz FX Pedal [Used]

U.K built one knob fuzz with rich, harmonic chaos and built-in pickup simulation

🔥 New Used In Stock

WA & Co. Fairchild Enigma Preamp & Distortion FX Pedal [Used] - Pedal Jungle

£159.99 ~~Sale price£169.99~~

WA & Co. Fairchild Enigma Preamp & Distortion FX Pedal [Used]

A very limited run fuzz, boost, preamp & distortion pedal

-6% 🔥 New Used In Stock

Bogner Burnley Distortion V2 FX Pedal [Used] - Pedal Jungle

£159.99

Bogner Burnley Distortion V2 FX Pedal [Used]

Rich analog distortion from crunch to high gain

🔥 New Used In Stock

DigiTech FS3X Footswitch Utility Pedal [Used] - Pedal Jungle

£19.99

DigiTech FS3X Footswitch Utility Pedal [Used]

Hands-free control offering mode changes, loop control, and more

🔥 New Used In Stock

Bluewhale Pedal Co Fuzzbender FF FX Pedal [Used] - Pedal Jungle

£55.99

Bluewhale Pedal Co Fuzzbender FF FX Pedal [Used]

Pure class Fuzz Face style pedal hand made in the U.K

🔥 New Used In Stock

Walrus Audio Canvas Passive Re - Amp Box [Used] - Pedal Jungle

Walrus Audio Canvas Passive Re-Amp Box - Pedal Jungle

£119.99

Walrus Audio Canvas Passive Re-Amp Box [Used]

Re-route recorded tracks through pedals and amps

Used In Stock

DigiTech TRIO Plus Band Creator + Looper FX Pedal [Used] - Pedal Jungle

£179.99

DigiTech TRIO Plus Band Creator + Looper FX Pedal [Used]

Automatically create bass and drum backing tracks in 12 genres and styles

🔥 New Used In Stock

Neunaber Audio Wet Reverb V5 FX Pedal [Used] - Pedal Jungle

£129.99

Neunaber Audio Wet Reverb V5 FX Pedal [Used]

Simple 3 knob control reverb with two legendary algorithms

🔥 New Used In Stock

Wampler Pedals Velvet Fuzz V2 FX Pedal [Used] - Pedal Jungle

£129.99

Wampler Pedals Velvet Fuzz V2 FX Pedal [Used]

Stacked amp fuzz tones with refined control

🔥 New Used In Stock

DSM Humboldt Silver Linings Overdrive FX Pedal [Used] - Pedal Jungle

£149.99 ~~Sale price£159.99~~

DSM Humboldt Silver Linings Overdrive FX Pedal [Used]

Premium analog drive/preamp with 3 modes

-6% Used In Stock

Fredric Effects King Of Klone Overdrive FX Pedal [Used] - Pedal Jungle

£169.99 ~~Sale price£179.99~~

Fredric Effects King Of Klone Overdrive FX Pedal [Used]

When one Klone just isn’t enough

-6% Used In Stock

Dophix Galileo Optical Tremolo FX Pedal [Used] - Pedal Jungle

£219.99 ~~Sale price£229.99~~

Dophix Galileo Optical Tremolo FX Pedal [Used]

An all analogue optical tremolo inspired by Galileo, where science meets sonic motion

-4% Used In Stock

Vemuram Budi - G Boost FX Pedal [Used] - Pedal Jungle

£209.99 ~~Sale price£219.99~~

Vemuram Budi-G Boost FX Pedal [Used]

A high headroom boost with subtle gritty gain

-5% Used In Stock

Voodoo Lab Sparkle Drive Mod Overdrive FX Pedal [Used] - Pedal Jungle

£129.99 ~~Sale price£139.99~~

Voodoo Lab Sparkle Drive Mod Overdrive FX Pedal [Used]

Four unique overdrive/distortion circuits in one cool box

-7% Used In Stock

Effectrode Delta Tremolo MKII FX Pedal [Used] - Pedal Jungle

£299.99

Effectrode Delta Tremolo MKII FX Pedal [Used]

A genuine valve driven tremolo with real 300V plate voltage

Used In Stock

Victory Amps The Duchess V4 Guitar Amp Pedal [Used] - Pedal Jungle

£479.99 ~~Sale price£499.99~~

Victory Amps The Duchess V4 Guitar Amp Pedal [Used]

180W valve hybrid amp with reverb & tremolo

-4% Used In Stock

Fulltone Mini Deja Vibe MDV - 2 Univibe FX Pedal [Used] - Pedal Jungle

£179.99 ~~Sale price£189.99~~

Fulltone Mini Deja Vibe MDV-2 Univibe FX Pedal [Used]

Vintage Univibe tone, reborn in a pedalboard friendly form

-5% Used In Stock

Marshall Drive Master 1990s FX Pedal [Used] - Pedal Jungle

£149.99

Marshall Drive Master 1990s FX Pedal [Used]

Classic 1990s Marshall Drive Master

Used In Stock

Have you checked out these bad boys?

Epic FX that made it to our top picks and best sellers lists

View all products

Rockboard Stage Tuner ST - 01 V2 Chromatic Pedal Tuner - Pedal Jungle

£35.99

RockBoard Stage Tuner ST-01 V2 Chromatic FX Pedal Tuner

⭐ Best Seller In Stock

Rainger FX Reverb-X FX Pedal (incl. Igor)

£229.99

Rainger FX Reverb-X FX Pedal (incl. Igor)

The best-selling mini reverb with a pressure pad twist

⭐ Best Seller Special Order

Old Blood Noise Endeavors Bathing Liminal Delay FX Pedal [Ink] - Pedal Jungle

£299.99

Old Blood Noise Endeavors Bathing Liminal Delay FX Pedal [Ink]

A distinctive stereo effect that blends delay, modulation, and reverb, available in the more limited Ink finish

⭐ Best Seller In Stock

Beetronics Tuna Fuzz FX Pedal - Pedal Jungle

£84.99

Beetronics Tuna Fuzz FX Pedal

Vintage inspired fuzz in a tuna can. What else to say!

⭐ Best Seller In Stock

Old Blood Noise Endeavors Dark Star Stereo Soundscape Reverb FX Pedal [Black] - Pedal Jungle

£299.99

Old Blood Noise Endeavors Dark Star Stereo Soundscape Reverb FX Pedal [Black]

A true reverb powerhouse, cloaked in black & loaded with ambient tools

⭐ Best Seller In Stock

Coffee Shop Pedals London Fog Tape Delay FX Pedal - Pedal Jungle

£239.99

Coffee Shop Pedals London Fog Tape Delay FX Pedal

Analog style tape delay with 4 tape modes

⭐ Best Seller 🇬🇧 U.K First Pre-Order

Old Blood Noise Endeavors Black Fountain Stereo Delay FX Pedal [Slate] - Pedal Jungle

£299.99

Old Blood Noise Endeavors Black Fountain Stereo Delay FX Pedal [Slate]

It’s more than just stereo, it’s a fully immersive sonic landscape waiting to be explored

⭐ Best Seller In Stock

Frost Giant Electronics Little Acid Fuzz V2 FX Pedal - Pedal Jungle

£169.99 ~~Sale price£179.99~~

Frost Giant Electronics Little Acid Fuzz V2 FX Pedal

-6% 🇬🇧 U.K First In Stock

Greer Amps Gorilla Warfare MKII Distortion FX Pedal - Pedal Jungle

£189.99 ~~Sale price£199.99~~

Greer Amps Gorilla Warfare MKII Distortion FX Pedal

-5% In Stock

Greer Amps Super Hornet Octave Fuzz FX Pedal - Pedal Jungle

£239.99 ~~Sale price£249.99~~

Greer Amps Super Hornet Octave Fuzz FX Pedal

-4% In Stock

Coffee Shop Pedals Affogato Fuzz FX Pedal - Pedal Jungle

£179.99 ~~Sale price£199.99~~

Coffee Shop Pedals Affogato Fuzz FX Pedal

All analog fuzz with 3-band EQ

-10% 🇬🇧 U.K First In Stock

KMA Machines Guardian Of The Wurm Distortion & Noise Gate FX Pedal - Pedal Jungle

£219.99

KMA Machines Guardian Of The Wurm Distortion & Noise Gate FX Pedal

Brutal high gain distortion, built-in noise gate & 4-band EQ

In Stock

High-quality, vintage inspired FX, hand built in the U.K using authentic components

MUSTARD FX

We only sell pre-owned Mustard FX, see what we've got available.

Shop Mustard FX

Still Looking?

Lots more fuzz for you to see...

Shop All Fuzz

Boss FZ - 5 Fuzz FX Pedal [Used] - Pedal Jungle

Customer Reviews

More Used

Have you checked out these bad boys?

MUSTARD FX

Still Looking?

Unrivalled Customer Service

30-Day No-Fuss Returns

Earn Rewards

15% Off

Mustard FX Frankenbender Mk1 Germanium Fuzz FX Pedal [Used]

Our 'Used' Pedal Reviews

Customer Reviews

Mustard FX

Want to know more?

More Used

Have you checked out these bad boys?

MUSTARD FX

Still Looking?

Join Our FX Collective

Unrivalled Customer Service

30-Day No-Fuss Returns

Earn Rewards

15% Off

Shop

Support & Policies

Follow Us

Pay Your Way