Price: $249 Fallout Black in stock.Domestic shipping: $free
International Priority Shipping: We cover half of international shipping on this box!
**International shipping charges are estimated. We will invoice you for the shipping once we can determine the exact cost to your country. Feel free to message us with any questions.
New updated look with a few secret mods on the inside. 1/8th” jacks mirror 1/4″ jacks to make interfacing with modular gear easier. Of course we always recommend using on of our GPI (Guitar Pedal Interface) eurorack module if your looking for full eurorack integration.
Please read:
The Electron Fuzz “Custom” is an extremely high gain distortion. Seriously, normal volume setting is at about 10% of its full output potential. Two gain/tone controls “Hurt” and “Pain” give a variety of tone textures and a feedback noise loop can be adjusted to add a very gritty almost 8-bit sound or a squelching scream. (Great for droning or well crafted solos and recording). The extra stomp switch adds 2 more additional gain stages and a boost of high end to the sound. Best of all the distortion oscillates when notes are held adding a new level of expression.
***Orders may take 1-2 days depending on availability.
Here is a great demo video from the “Pedal and Effects” youtube channel featuring Alessandro Cortini of NIN, Sonoio and Modwheelmood.
Extremely high gain for recording direct to your DAW
Use with guitars and keyboards
VU meter responds to your playing
The red LED on the radio tower switches on when boost mode is enabled. A convent way to know where you are when playing.
• Knob controls:
A unique approach to tone control…
Hurt:Controls the gain of 3rd gain stage. Lowering the gain will also reduce low end. Pain: Controls the gain of the 2nd transistor gain stage. Lowering the gain will reduce high end. Output: Volume/saturation. Take some of the edge off the mix or crank the pain and hurt all the way for a big, dirty, crunchy fuzz. FB Noise: On/Off adjusts the amount of feedback in the circuit for noise making. Creates a weird octave mod fx.
• Switch controls: Low cut toggle: Cuts the low end for a slightly less bassy more gated sound. x1000 gain:On left stomp switch. This takes your sound through an addition 2 transistor gain stages and pushes the electrons way past 11! The booster switch adds a loud and dirty, thrash crunch to this versatile pedal. Incredible for feedback noise and FX textures. Can cause the parasitic frequency oscillation but sounds awesome while playing. True Bypass: Lets you play through the pedal.
• Meter: Responds to your playing, and reflects first gain stage transistor distortion. Illuminates when active.
***All purchases done through Paypal. Units are always shipped ASAP. Please note when purchasing from eBay shipping charges may be vary.
****International shipping can vary. Typically I will credit back any difference when your unit is ready and I am able to verify exact shipping to your specific location.
We recently ran out of panels for this. We don’t get enough consistent orders to keep this one on the roster. Most folks go with the standard aluminum pedal version. Vintage meters are also getting scarce and more expensive each day.
Of course we can always service any units that may need help down the road. Just not making new ones.
We will be leaving this page up for reference. Enjoy, Johnathan-
Electron Fuzz Custom Retro
EFCr with vintage meter: $449 Deposit: $149 Domestic shipping: $18 to $45 International Priority Shipping: $39-$70 (Approximately)
**International shipping charges are estimated. We will invoice you for the shipping once we can determine the exact cost to your country. Feel free to message us with any questions.
***All deposits are applied in full towards purchase when your box is ready to ship.
The Electron Fuzz Custom “RETRO” houses the same circuit as the aluminum pedal version but is placed in a classy wood box. ***We have added the “Bleed” feature from the now discontinued EFC (Bleed/Decay) version. It provides a clean signal to mix under the distortion signal. Both distortion and clean signals have their own volume control.
This is an extremely high gain distortion. Seriously, normal volume setting is at about 10% of its full output potential. Two gain/tone controls “Hurt” and “Pain” give a variety of tone textures and a feedback noise loop can be adjusted to add a very gritty almost 8-bit sound or a squelching scream. (Great for droning or well crafted solos and recording). The extra stomp switch adds 2 more additional gain stages and a boost of high end to the sound. Best of all the distortion oscillates when notes are held adding a new level of expression.
***Orders may take 3-4 weeks depending on availability.
Here is a great demo video from the “Pedal and Effects” youtube channel featuring Alessandro Cortini of NIN, Sonoio and Modwheelmood.
[list_circle]Things I personally enjoy about this pedal:
Fuzzy to crunchy tones
Wide range of possible textures and character
Expressive distortion oscillations
Feedback noise loop for unusual sound design
Extremely high gain for recording direct to your DAW
Use with guitars and keyboards
VU meter responds to your playing
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The red LED switches on when boost mode is enabled. A convent way to know where you are when playing.
• Knob controls:
A unique approach to tone control…
Hurt:Controls the gain of 3rd gain stage. Lowering the gain will also reduce low end. Pain: Controls the gain of the 2nd transistor gain stage. Lowering the gain will reduce high end. Output: Volume/saturation. Take some of the edge off the mix or crank the pain and hurt all the way for a big, dirty, crunchy fuzz. FB Noise: On/Off adjusts the amount of feedback in the circuit for noise making. Creates a weird octave mod fx.
• Switch controls: Low cut toggle: Cuts the low end for a slightly less bassy more gated sound. x1000 gain:On left stomp switch. This takes your sound through an addition 2 transistor gain stages and pushes the electrons way past 11! The booster switch adds a loud and dirty, thrash crunch to this versatile pedal. Incredible for feedback noise and FX textures. Can cause the parasitic frequency oscillation but sounds awesome while playing. True Bypass: Lets you play through the pedal.
• Meter: Responds to your playing, and reflects first gain stage transistor distortion. Illuminates when active.
***All purchases done through Paypal. Units are always shipped ASAP. Please note when purchasing from eBay shipping charges may be vary.
****International shipping can vary. Typically I will credit back any difference when your unit is ready and I am able to verify exact shipping to your specific location.
Jan 1st 2026: Due to the cost of parts and the time it takes to build we have decided to retire this version. I may come back later with a re-design that eliminates the costly VU meters with a smaller foot print but that will take some time. Of course we will always continue to service any units if needed.
**If you already have an order in please don’t worry. We will be honoring all remaining custom orders put in before January 1st 2026.
Leaving this page up for reference. Enjoy, Johnathan –
Price: $995 (Backlit VU Meters) Deposit: $419
Domestic shipping: approximately $45 to $65 International Priority Shipping: **Shipping for orders overseas is determined upon request. Feel free to message us with any questions. Click here.
Currently not offered with vintage meters. The back orders ate up a lot of resources. We may put one up with vintage meters as a “one off” every now and then. Having to work the magic of those vintage meters two at a time has been difficult. It’s one thing if these were not premium boxes and any old floppy meter would be acceptable. But we take great pride in what we do and “old floppy meters” are not what we are going for. In order to assure a timely delivery with a minimal wait time we are switching to the fancy back lit VU meters.
The EFC (Electron Fuzz Custom) is a super hi gain distortion with a parallel clean circuit and self oscillating feedback. The circuit was redesigned to fit the “studio” environment. The Studio version houses two EFC distortions in one 19″ 3u rack. Balanced XLR ins/outs on the back. Linkable Hi-Z inputs in the front.
The EFC distortion is very crunchy due to the way the transistors are biased. On the Studio version I added a new feature. A toggle that can change the biasing to a more conventional response. This is most apparent when using it with guitar or sounds where a longer decay is desired. It makes the notes sustain more.
The EFC Studio is intended to be used on every type of instrument. Guitar, Drums, Synths, Vocals etc. It can be used for stereo processing but is technically dual mono. This gives you better control over the stereo field. Personally I enjoy bus mixing through it. While there is nothing subtle about the EFC circuit, it can be used a very subtle ways.
Key Features:
Unconventional tone control: The “Hurt” and “Pain” knobs work as tone controls, but are directly tied to the gain staging. When you adjust one your adjusting the dynamics of the circuit. Not just sweeping out hi or low end. This makes for very interesting textures and a wide range of possible tones.
Parallel clean circuit: Use this to mix the original signal under the distortion. Drive the inputs harder and the “Bleed” becomes a softer overdrive.
Input attenuation: “Input” attenuates the signal going to the distortion circuit. Less signal means less circuit compression.
Balanced ins/outs: XLR ins and outs for studio uses. XLR outputs are active while using the front Hi-Z ins and outs.
Linkable Hi-Z inputs: Plug a guitar or synth right into the front. When the inputs are linked a mono signal becomes stereo. It is possible to run the outs in front to an amp or other gear.
Universal power: Internal regulated power supply. 85 VAC to 264 VAC. Ideal for international power grids. No wall wart needed.
New Biasing mode: For more conventional decay response.
Dimensions: 19″ x 5.5″ x 5″ deep.
Panel meters: Supports both 2.5″ and 3.5″ panel meters. Look can vary depending on type used. Vintage and NOS panel meters will not match. When possible we will use the same style or manufacturer unless otherwise requested. Extremely mismatched meters my add to a more “Frankenstein-ish” look.
Price: $299 (reg price $319) Domestic shipping: Free Aprox. International Shipping: $24-$39 (we cover half the USPS priority international shipping.)
In Stock Feb 2025
28hp
82ma @ +12 6.25ma @ -12
***Please read*** We have a limited number of Nuclear Winter White EFCcv euorack panels available. These are only sold here on the website and not sent out to our retailers. Once they are gone it may be a while before we make more. And now back to the original content…
Previously: The Electron Fuzz Custom into 100% full eurorack format. This is the full production run. Laser cut aluminum panel. Built by organic free range Portlanders. Lots of videos on Instagram. Click here to browse my personal RML account.
The eurorack module is essentially the same as the “EFCcv euro” pedal with a couple of slight modifications.
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I’ve added the GPI (Guitar Pedal Interface) input attenuation. This lets you bump the input down even lower levels to compensate for the hotter eurorack line levels. It also give you the ability to still use it with guitars and standard line level instruments such as external drum machines and synths like with the original guitar pedal. You can literally patch a guitar right in using the proper 1/4″ to 1/8″ cable.
Taking full advantage of the higher voltages available I was able boost the final output of the pedal to full eurorack levels. The “Bleed” (Clean Mix) is now independent of the distortion GPI attenuation. So mix that awesome hi-fidelity signal in with your distortion, or turn it completely off. Its up to you!
I’ve included the original “EFC” output. This is a direct tap of the pre-eurorack EFC guitar pedal. The output is muted when in bypass. The output is lower (like the original pedal) and before the final op amp gain staging. Feel free to plug an output signal in and see what happens. Its an “in” AND an “out”.
This version has conventional knobs. Meaning as you turn to the right the volume increases. The original pedal works in reverse. I will likely change that back when we have the manufactured panel. I’ve always felt the reverse knobs helps break out of the
IMPORTANT: This is a high gain distortion. It will boost any line noise you feed into it. This is most apparent when the x1000 toggle is engaged. You may think your system is quite until you crank that gain up! It will not insert noise into your system, only amplify noise that is already there. This is a byproduct of distortion pedals and is not something I can filter out without affecting the sound. If you have it plugged in and NOT in bypass mode you will hear your systems line noise. This might be an non-issue since its not noticeable while sound is running through it. Naturally when not using it and nothing is plugged into it you wont hear anything. I just like to remind people there are consequences to your actions. Artificially boosting your gain this much sounds great but is not without its artifacts.
It has true bypass just like the guitar pedal. Yeah thats crazy but I left that on for performances.
Just like on the standard pedals there can be potentiometer wiper noise. Most apparent when no sound is running though the pedal.
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A couple of demo videos:
•••Eurorack module while still a guitar pedal.
4 CV inputs work on a positive +5 voltage. Safe to run higher voltages in but you wont notice much change past 5volts.
CV Control:
“Hurt“, “Pain“, “Feedback OSC“, and “Distortion Out” all have independent CV controls.
“Hurt” works as a Hi-Pass. “Pain” works as a low pass. Both of these tone controls are tied to gain stages. Changing these also affect the amount of gain passing to the next gain stage. This produces a more chaotic form of tone control and a wide range of textures. “Feedback OSC” is a noise making function that can produce sounds ranging from low pulses or bit crunch to tunable wha-screaming self oscillation. The tone of the Feedback OSC is greatly dependent on Hurt and Pain controls. “Distortion Out” is the volume of the distortion pedal. It works like a basic VCA. The Distortion Out is independent from the “Bleed Out” that functions as a clean pass circuit. Ideal for mixing distortion with synths or anything from vocals to drum sounds.
The new input impedance knob: reduces the amount of signal hitting the distortion circuit. Concept: The clean signal pass provides a way to keep the fidelity of the original signal intact while mixing the distorted signal over it.
Function: ***This is a high gain distortion pedal. Please expect it to behave as such. In short it will amplify line noise. Moog products tend to be very clean. Dave Smith synths such as the Pro2 tend to have a higher noise floors. While no signal is being run through it the noise floor will be amplified. If a square wave CV signal is left on you may hear “CV tick” as the transistors switch from open to closed.
More about the Electron Fuzz Custom:
The Electron Fuzz “Custom” is an extremely high gain distortion. Seriously, normal volume setting is at about 10% of its full output potential. Two gain/tone controls “Hurt” and “Pain” give a variety of tone textures and a feedback noise loop can be adjusted to add a very gritty almost 8-bit sound or a squelching scream. (Great for droning or well crafted solos and recording). The extra stomp switch adds 2 more additional gain stages and a boost of high end to the sound. Best of all the distortion oscillates when notes are held adding a new level of expression.
The EFC before it was transformed into eurorack:
Here is a great demo video of the non-cv EFC from the “Pedal and Effects” youtube channel featuring Alessandro Cortini of NIN, Sonoio and Modwheelmood.
[list_circle]Things I personally enjoy about this pedal:
Modulate that crazy feedback OSC
Fuzzy to crunchy tones
Wide range of possible textures and character
Expressive distortion oscillations
Feedback noise loop for unusual sound design
Extremely high gain for recording direct to your DAW
Use with guitars and keyboards
VU meter responds to your playing
[/list_circle]
The red LED switches on when boost mode is enabled. A convent way to know where you are when playing.
• Knob controls:
A unique approach to tone control…
Hurt:Controls the gain of 3rd gain stage. Lowering the gain will also reduce low end. Pain: Controls the gain of the 2nd transistor gain stage. Lowering the gain will reduce high end. Output: Volume/saturation. Take some of the edge off the mix or crank the pain and hurt all the way for a big, dirty, crunchy fuzz. FB Noise: Adjusts the amount of feedback in the circuit for noise making. Creates a weird octave mod fx.
• Switch controls: Low cut toggle: Cuts the low end for a slightly less bassy more gated sound. x1000 gain:On left stomp switch. This takes your sound through an addition 2 transistor gain stages and pushes the electrons way past 11! The booster switch adds a loud and dirty, thrash crunch to this versatile pedal. Incredible for feedback noise and FX textures. Can cause the parasitic frequency oscillation but sounds awesome while playing. True Bypass: Lets you play through the pedal.
• Meter: Responds to your playing, and reflects first gain stage transistor distortion. Illuminates when active.
***All purchases done through Paypal. Units are always shipped ASAP. Please note when purchasing from eBay shipping charges may be vary.
****International shipping can vary. Typically I will credit back any difference when your unit is ready and I am able to verify exact shipping to your specific location.
Domestic shipping: $free International Priority Shipping: $39
**International shipping charges are estimated. We will invoice you for the shipping once we can determine the exact cost to your country. Feel free to message us with any questions.
Scroll down for demo video!
Please read:
The more compact version of the large format EFCcv
•••Euro Rack Crossover Pedal only! Sorry guitar people this pedal only has 1/8th inch jacks. All jacks are on the top side/face of the pedal. It is intended to connect to your euro rack system.
4 CV inputs work on a positive +5 voltage. Safe to run higher voltages in but you wont notice much change past 5volts.
CV Control:
“Hurt“, “Pain“, “Feedback OSC“, and “Distortion Out” all have independent CV controls.
“Hurt” works as a Hi-Pass. “Pain” works as a low pass. Both of these tone controls are tied to gain stages. Changing these also affect the amount of gain passing to the next gain stage. This produces a more chaotic form of tone control and a wide range of textures. “Feedback OSC” is a noise making function that can produce sounds ranging from low pulses or bit crunch to tunable wha-screaming self oscillation. The tone of the Feedback OSC is greatly dependent on Hurt and Pain controls. “Distortion Out” is the volume of the distortion pedal. It works like a basic VCA. The Distortion Out is independent from the “Bleed Out” that functions as a clean pass circuit. Ideal for mixing distortion with synths or anything from vocals to drum sounds.
The new input impedance knob: reduces the amount of signal hitting the distortion circuit. Concept: The clean signal pass provides a way to keep the fidelity of the original signal intact while mixing the distorted signal over it.
Function: ***This is a high gain distortion pedal. Please expect it to behave as such. In short it will amplify line noise. Moog products tend to be very clean. Dave Smith synths such as the Pro2 tend to have a higher noise floors. While no signal is being run through it the noise floor will be amplified. If a square wave CV signal is left on you may hear “CV tick” as the transistors switch from open to closed.
More about the Electron Fuzz Custom:
The Electron Fuzz “Custom” is an extremely high gain distortion. Seriously, normal volume setting is at about 10% of its full output potential. Two gain/tone controls “Hurt” and “Pain” give a variety of tone textures and a feedback noise loop can be adjusted to add a very gritty almost 8-bit sound or a squelching scream. (Great for droning or well crafted solos and recording). The extra stomp switch adds 2 more additional gain stages and a boost of high end to the sound. Best of all the distortion oscillates when notes are held adding a new level of expression.
***Orders may take 1-2 days depending on availability.
Here is a great demo video of the non-cv EFC from the “Pedal and Effects” youtube channel featuring Alessandro Cortini of NIN, Sonoio and Modwheelmood.
[list_circle]Things I personally enjoy about this pedal:
Modulate that crazy feedback OSC
Fuzzy to crunchy tones
Wide range of possible textures and character
Expressive distortion oscillations
Feedback noise loop for unusual sound design
Extremely high gain for recording direct to your DAW
Use with guitars and keyboards
VU meter responds to your playing
[/list_circle]
The red LED switches on when boost mode is enabled. A convent way to know where you are when playing.
• Knob controls:
A unique approach to tone control…
Hurt:Controls the gain of 3rd gain stage. Lowering the gain will also reduce low end. Pain: Controls the gain of the 2nd transistor gain stage. Lowering the gain will reduce high end. Output: Volume/saturation. Take some of the edge off the mix or crank the pain and hurt all the way for a big, dirty, crunchy fuzz. FB Noise: Adjusts the amount of feedback in the circuit for noise making. Creates a weird octave mod fx.
• Switch controls: Low cut toggle: Cuts the low end for a slightly less bassy more gated sound. x1000 gain:On left stomp switch. This takes your sound through an addition 2 transistor gain stages and pushes the electrons way past 11! The booster switch adds a loud and dirty, thrash crunch to this versatile pedal. Incredible for feedback noise and FX textures. Can cause the parasitic frequency oscillation but sounds awesome while playing. True Bypass: Lets you play through the pedal.
• Meter: Responds to your playing, and reflects first gain stage transistor distortion. Illuminates when active.
***All purchases done through Paypal. Units are always shipped ASAP. Please note when purchasing from eBay shipping charges may be vary.
****International shipping can vary. Typically I will credit back any difference when your unit is ready and I am able to verify exact shipping to your specific location.
In stock takes a day or so for us to build if we run out.
Price: $329/$565 Domestic shipping: $free International Priority Shipping: $39 Requires an 18volt power supply with a negative tip that can deliver at least 150ma. (Not included.)
**International shipping charges are estimated. We will invoice you for the shipping once we can determine the exact cost to your country. Feel free to message us with any questions.
•••Euro Rack Pedal only! Sorry guitar people this pedal only has 1/8th inch jacks. All jacks are on the top side/face of the pedal. It is intended to connect to your euro rack system or line level instruments. The Hyde Distortion Filter is taken directly from the Jekyll n Hyde Dual filter box and cast into a durable aluminum pedal enclosure. This is a distortion box with an active Low Pass (Diode Ladder) Filter and enhanced resonant feedback. A very slow drifting LFO modulates the filter frequency.
2.0 has bunch more CV flexibility.
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An inverted LPF control. Send a positive saw tooth wave and the response will be in reverse.
Resonance control for those deep clamped down filter harmonics.
A low cut (HPF) to sweep out the low end for creative mixing and layering.
Mid range distortion enhancement. Makes the distortion more dominating
Each new CV has a corresponding responsive LED.
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I’ve also added a distortion bypass toggle to provide an alternative clean input to the filter.
“Active” LED is responsive to input signal. Active LED is bypassed when clean input is enabled.
The Hyde Distortion filter is perfect for creating dark textures and soundscapes. Tune the resonant feedback to match your harmonic droning or wall of noise. Use two boxes to create deep stereo textures. Turn a synth with no personality into a monster.
***Orders may take 1-2 days depending on availability.
Things I enjoy about this pedal:
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The sound of the filter! Smooth and dark.
The distortion is not high gain. Works well with noisy synths.
Enhanced resonant feedback for more expressive tones
Small compact size
Pre-filter distortion and Post overdrive for gain recovery
Post germanium clipping/saturation
CV filter control, use modular gear to ….modulate!
Slow drifting LFO modulation keeps an otherwise stagnate signal alive.
True Bypass
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The “Active” LED responds to signal input as you feed sound into it.
• Knob controls:
Up: Pre-Distortion Hyde: Filter Fortis: Resonance Down: Post-Drive Nefras: LFO Modulation “Y” LED: LFO Pulse Blas: LFO Amount Zeal: LFO Speed React: Germanium Clipping **Requires a regulate 18volt DC Supply. Standard negative tip with a min of 150ma. (not included) Will run on 12volts for a dirtier sound. Lower voltage will affect the smoothness of the filter.
***All purchases done through Paypal. Units are always shipped ASAP. Please note when purchasing from eBay shipping charges may be vary.
****International shipping can vary. Typically I will credit back any difference when your unit is ready and I am able to verify exact shipping to your specific location.
All the features of the full Electron Fuzz Custom but in a smaller package.
Sale Price: $189 (Reg $199)
Fallout Black and Nuclear Winter White.
Domestic shipping: $free International Priority Shipping: We cover half of international shipping on this box!
**International shipping charges are estimated. We will invoice you for the shipping once we can determine the exact cost to your country. Feel free to message us with any questions.
***I generally have these enclosures in stock but in the event I run out they are quick to get, but that may delay your shipping time. If you have concerns please shoot me an e mail Click here. Ether way, if I have to make a quick order I’ll let you know.
***I’ve had a lot of requests for a smaller version of the EFC. This one is only 4.5″ x 3.5″. Unlike the original EFC this one has both stomps switches and the knobs now function in a “conventional direction” I know that confused a lot of new users in the beginning. We will still keep the unconventional knob direction on the larger EFC.
Price includes shipping. This pedal requires a standard 9volt supply. It has no internal batter space!
More about the EFC…
The Electron Fuzz “Custom” is an extremely high gain distortion. Seriously, normal volume setting is at about 10% of its full output potential. Two gain/tone controls “Hurt” and “Pain” give a variety of tone textures and a feedback noise loop can be adjusted to add a very gritty almost 8-bit sound or a squelching scream. (Great for droning or well crafted solos and recording). The extra stomp switch adds 2 more additional gain stages and a boost of high end to the sound. Best of all the distortion oscillates when notes are held adding a new level of expression.
***Orders may take 1-2 days depending on availability.
Here is a great demo video from the “Pedal and Effects” youtube channel featuring Alessandro Cortini of NIN, Sonoio and Modwheelmood.
[list_circle]Things I personally enjoy about this pedal:
Fuzzy to crunchy tones
Wide range of possible textures and character
Expressive distortion oscillations
Feedback noise loop for unusual sound design
Extremely high gain for recording direct to your DAW
Use with guitars and keyboards
CPM LED responds to your playing
[/list_circle]
The red LED above the radio tower switches on when boost mode is enabled. A convent way to know where you are when playing.
• Knob controls:
A unique approach to tone control…
Hurt:Controls the gain of 3rd gain stage. Lowering the gain will also reduce low end. Pain: Controls the gain of the 2nd transistor gain stage. Lowering the gain will reduce high end. Output: Volume/saturation. Take some of the edge off the mix or crank the pain and hurt all the way for a big, dirty, crunchy fuzz. FB Noise: On/Off adjusts the amount of feedback in the circuit for noise making. Creates a weird octave mod fx.
• Switch controls: Low cut toggle: Cuts the low end for a slightly less bassy more gated sound. x1000 gain:On left stomp switch. This takes your sound through an addition 2 transistor gain stages and pushes the electrons way past 11! The booster switch adds a loud and dirty, thrash crunch to this versatile pedal. Incredible for feedback noise and FX textures. Can cause the parasitic frequency oscillation but sounds awesome while playing. True Bypass: Lets you play through the pedal.
• Meter: Responds to your playing, and reflects first gain stage transistor distortion. Illuminates when active.
***All purchases done through Paypal. Units are always shipped ASAP. Please note when purchasing from eBay shipping charges may be vary.
****International shipping can vary. Typically I will credit back any difference when your unit is ready and I am able to verify exact shipping to your specific location.
Electron Fuzz Custom with vintage dome transistors
Update 3/09/2024: We have acquired a small batch of vintage transistors and are able to build a few more!
Still a very limited run. Looks like we are able to build another 7 units. Production on them begins next week, and should be able to ship shortly after. Expect delivery in about two weeks from your time of order.
Our most popular pedal but with vintage dome transistors. In this variant the audio path contains 5 vintage dome 2n3565 transistors from approximately the 1970s. Tried to get an exact date but info on the origins of these are scarce. These same transistors have been used for some classic vintage fuzz face pedals. But please remember this pedal is not a fuzz face.
The vintage dome transistors give the pedal a “smoother sound”. Thats the only way I can describe it. Same great character and dynamics but “different”. Sporting the limited edition artwork, this will be a short run while transistor supply lasts.
I have a couple now ready to go now. If the first few go please allow a day or two before shipping as we sometimes build on demand. Stock is limited.
Things I personally enjoy about Electron Fuzz (EFC) pedal:
Fuzzy to crunchy tones
Wide range of possible textures and character
Expressive distortion oscillations
Feedback noise loop for unusual sound design
Extremely high gain for recording direct to your DAW
Use with guitars and keyboards
VU meter responds to your playing in erratic ways
Can make drums sound aggressive and distorted without being “Hurty”
The Electron Fuzz “Custom” is an extremely high gain distortion. Seriously, normal volume setting is at about 10% of its full output potential. Two gain/tone controls “Hurt” and “Pain” give a variety of tone textures and a feedback noise loop can be adjusted to add a very gritty almost 8-bit sound or a squelching scream. (Great for droning or well crafted solos and recording). The extra stomp switch adds 2 more additional gain stages and a boost of high end to the sound. Best of all the distortion oscillates when notes are held adding a new level of expression.
***Orders may take 1-2 days depending on availability.
Here is a great demo video from the “Pedal and Effects” youtube channel featuring Alessandro Cortini of NIN, Sonoio and Modwheelmood.
The red LED on the radio tower switches on when boost mode is enabled. A convent way to know where you are when playing.
• Knob controls:
A unique approach to tone control…
Hurt:Controls the gain of 3rd gain stage. Lowering the gain will also reduce low end. Pain: Controls the gain of the 2nd transistor gain stage. Lowering the gain will reduce high end. Output: Volume/saturation. Take some of the edge off the mix or crank the pain and hurt all the way for a big, dirty, crunchy fuzz. FB Noise: On/Off adjusts the amount of feedback in the circuit for noise making. Creates a weird octave mod fx.
• Switch controls: Low cut toggle: Cuts the low end for a slightly less bassy more gated sound. x1000 gain:On left stomp switch. This takes your sound through an addition 2 transistor gain stages and pushes the electrons way past 11! The booster switch adds a loud and dirty, thrash crunch to this versatile pedal. Incredible for feedback noise and FX textures. Can cause the parasitic frequency oscillation but sounds awesome while playing. True Bypass: Lets you play through the pedal.
• Meter: Responds to your playing, and reflects first gain stage transistor distortion. Illuminates when active.
***All purchases done through Paypal. Units are always shipped ASAP. Please note when purchasing from eBay shipping charges may be vary.
****International shipping can vary. Typically I will credit back any difference when your unit is ready an
This item has been discontinued. Leaving this page up for reference.
Price: Discontinued.
European Beech $489 Natural Oiled Walnut $499
Domestic shipping: $free International Priority Shipping: $39 Requires an 18volt power supply with a negative tip that can deliver at least 150ma. (Not included.) Buy one here.
**International shipping charges are estimated. We will invoice you for the shipping once we can determine the exact cost to your country. Feel free to message us with any questions.
Please read:
Due to increased costs of the meter and other raw good we are discontinuing this product. The smaller euro-pedal version will continue to be available. I really love this pedal design. Fact of the matter is that when we order the meters there are always ones that don’t meet retail standards. Sometimes its minor scrapes or marks. Other times its smudges that won’t wipe of the plastic glass. Since we buy these from overseas in smaller quantities than major brands, it makes it incredibly hard and costly to return them. The current tariff situation has also not resolved its self.
That may be by design. Offer a full refund but you have to return the items. Shipping is $$$.
…But what ever reason it adds up. I find myself working for less than minimum wage 😂 …QC has been an ever increasing issue since covid. It’s like everything got sloppier and less care goes in to manufacturing. It would be a lot different if there wasn’t waste within every order and I could count on knowing what I’m paying for will arrive 100% perfect.
Legacy post begins here…
It’s finally here, the official Hyde Distortion Filter with an illuminated VU meter. I’ve had a lot of requests to mod and illuminate vintage meters and its not often possible. So after careful consideration we made this alternative. I feel this maintains the image and quality I’m striving for. It comes in ether European Beech in a dark finish or natural oiled walnut.
*some meters may not have the “ashdown” branding.
The circuit is the same Hyde Distortion Filter found on the now discontinued Jekyll n Hyde dual filter boxes and the smaller euro pedal. This version is a step up for folks who would like easier interfacing with standard instruments such as keyboards, drum machines and other guitar pedals while still maintaining eurorack style CV control. It has 1/4″ jacks for the in/out audio signal on the back and an additional LFO out on the top panel. The LFO out can also be used as a CV input for the LPF (low pass filter) the filter will respond differently than with the dedicated LPF CV jack on the front panel.
But what is a Hyde Distortion Filter?
This is a low pass (all analog) diode ladder filter with two distinct pre-distortion circuits. Depending on how the knob is set there is a third district sound where the two signals meet.
This is a lower gain distortion so it works well with noisier synths. Since the filter is being overdriven by the pre-distortions you get a very unusual tonal quality. Tone can be affected by increasing or decreasing the output of whatever instrument or pedal you’re feeding into it.
You can bypass the distortions for a clean input. It has a very slow drifting LFO to keep the filter from sitting in a static position. There is a particular “worble” to this circuit. Much like vintage gear there is a touch of instability. You would hear this predominately when cranking up the resonance and clamping down the filter. Something not easily achieved with plugins or soft synths.
**Requires a regulate 18volt DC Supply. Standard negative tip with a min of 150ma. (not included) I recommend this one: the ECB004 You can buy it directly from Sweetwater.
The Hyde Distortion Filter can run on lower voltages for a dirtier sound. For instance a 12volt supply that can provide enough current will drastically change the sound. The lower voltage will affect the smoothness of the filter. Experimenting with lower voltages will not damage anything. Just don’t use more than 18volts.
***All purchases done through Paypal. Units are always shipped ASAP.
****International shipping can vary. Typically I will send a payment request when your unit is ready and I am able to verify exact shipping to your specific location.
Special orders Deposit: $272 to $275 30-45 day build time. We invoice for the remainder plus shipping when your order is ready. Domestic shipping: Free.
**Requires an 18volt power supply – not included.Click here.
International Priority Shipping: **Shipping for orders overseas is determined upon request. Feel free to message us with any questions. Click here. ***If attempting to purchase and it says product is not available it has already sold.
Available for special order.
***Please read: Finally the completed vision. All analog filter and distortion. The Hyde Distortion Filter and the Electron Fuzz Custom CV together in one beautifully hand crafted box. The width is just 12.25″ wide and sits 5.5″ deep. Just slightly wider than an iMac keyboard.
***Phasing out the Flux Meter so that option is not available.
All 1/8″ jacks for interfacing with modular synth systems. The output is still line level so we recommend using these with a GPI module or something similar for attenuation and reamping to eurorack levels. Or just use it as normal with synths and drum machines. You just need the 1/8″ to 1/4″ jacks sold here.
The Hyde Distortion Filter is one half of the famous Jekyll n Hyde box but with some enhancements.
Filter CV
Inverted Filter CV
Resonance CV
Hi Pass CV
Midrange Boost CV
Distortion circuit bypass
The Electron Fuzz Custom is a high gain distortion that sounds exceptionally good with synths and drum machines. More info here.
The HDF sounds very good going into the Electron Fuzz Custom CV distortion offering a huge range of tone shaping possibilities. You can also run the EFCcv into the Hyde DF. There is no wrong way to use this. They also operate as two individual pedals.
You can find a lot of demos of the individual pedals and a few of the combo on my Instagram page.
**Requires an 9 volt power supply – not included.Click here.
International Priority Shipping: **Shipping for orders overseas is determined upon request. Feel free to message us with any questions. Click here. ***Please check with Schneiders laden first to see if they have boxes in stock!
To order directly from us use the link below and select the finish you’re interested in.
By request we took two Electron fuzz Custom (euro pedal) units and put them side by side into one box. This is great for anyone who wants to do some serious “stereo” analog distortion. All 1/8″ jacks. Use a standard 1/4″ to 1/8th” cable to operate with synths, drum machines or your DAW. When using with eurorack we suggest using a GPI (Guitar Pedal Interface) module for best results. If your into extreme sports try running one EFCcv into the other for total decimation.
It 12.5″ x 5.5″ in size. Just slightly larger than an iMac keyboard
Natural Oiled WalnutBlack CherryBlack Cherry
More about the EFCcv euro pedal…
•••Euro Rack Pedal only! Sorry guitar people this pedal only has 1/8th inch jacks. All jacks are on the top side/face of the pedal. It is intended to connect to your euro rack system.
4 CV inputs work on a positive +5 voltage. Safe to run higher voltages in but you wont notice much change past 5volts.
CV Control:
“Hurt“, “Pain“, “Feedback OSC“, and “Distortion Out” all have independent CV controls.
“Hurt” works as a Hi-Pass. “Pain” works as a low pass. Both of these tone controls are tied to gain stages. Changing these also affect the amount of gain passing to the next gain stage. This produces a more chaotic form of tone control and a wide range of textures. “Feedback OSC” is a noise making function that can produce sounds ranging from low pulses or bit crunch to tunable wha-screaming self oscillation. The tone of the Feedback OSC is greatly dependent on Hurt and Pain controls. “Distortion Out” is the volume of the distortion pedal. It works like a basic VCA. The Distortion Out is independent from the “Bleed Out” that functions as a clean pass circuit. Ideal for mixing distortion with synths or anything from vocals to drum sounds.The new input impedance knob: reduces the amount of signal hitting the distortion circuit.
Concept: The clean signal pass provides a way to keep the fidelity of the original signal intact while mixing the distorted signal over it.
Function: ***This is a high gain distortion pedal. Please expect it to behave as such. In short it will amplify line noise. Moog products tend to be very clean. Dave Smith synths such as the Pro2 tend to have a higher noise floors. While no signal is being run through it the noise floor will be amplified. If a square wave CV signal is left on you may hear “CV tick” as the transistors switch from open to closed.
More about the Electron Fuzz Custom:
The Electron Fuzz “Custom” is an extremely high gain distortion. Seriously, normal volume setting is at about 10% of its full output potential. Two gain/tone controls “Hurt” and “Pain” give a variety of tone textures and a feedback noise loop can be adjusted to add a very gritty almost 8-bit sound or a squelching scream. (Great for droning or well crafted solos and recording). The extra stomp switch adds 2 more additional gain stages and a boost of high end to the sound. Best of all the distortion oscillates when notes are held adding a new level of expression.
Here is a great demo video of the non-cv EFC from the “Pedal and Effects” youtube channel featuring Alessandro Cortini of NIN, Sonoio and Modwheelmood.
Extremely high gain for recording direct to your DAW
Use with guitars and keyboards
VU meter responds to your playing
The red LED switches on when boost mode is enabled. A convent way to know where you are when playing.
• Knob controls:
A unique approach to tone control…
Hurt:Controls the gain of 3rd gain stage. Lowering the gain will also reduce low end.
Pain: Controls the gain of the 2nd transistor gain stage. Lowering the gain will reduce high end.
Output: Volume/saturation. Take some of the edge off the mix or crank the pain and hurt all the way for a big, dirty, crunchy fuzz.
FB Noise: Adjusts the amount of feedback in the circuit for noise making. Creates a weird octave mod fx.• Switch controls:Low cut toggle: Cuts the low end for a slightly less bassy more gated sound.
x1000 gain:On left stomp switch. This takes your sound through an addition 2 transistor gain stages and pushes the electrons way past 11! The booster switch adds a loud and dirty, thrash crunch to this versatile pedal. Incredible for feedback noise and FX textures. Can cause the parasitic frequency oscillation but sounds awesome while playing.
True Bypass: Lets you play through the pedal.
• Meter: Responds to your playing, and reflects first gain stage transistor distortion. Illuminates when active.
***All purchases done through Paypal. Units are always shipped ASAP. Please note when purchasing from eBay shipping charges may be vary.
****International shipping can vary. Typically I will credit back any difference when your unit is ready and I am able to verify exact shipping to your specific location.
**Requires an 18volt power supply – not included.Click here.
International Priority Shipping: **Shipping for orders overseas is determined upon request. Feel free to message us with any questions. Click here. ***If attempting to purchase and it says product is not available it has already sold.
Ready to ship. **If this has sold the “Buy Now” will not work. I will update this page to reflect availability at my soonest possible opportunity.
For your considerations. A Hyde/EFCcv distortion box. Analog ladder filter on the left. Analog distortion on the right. The wood is European Beech stained red mahogany and hand distressed by various instruments of destruction. When I’m gone I hope I am remembered for my love of wood boxes.
I’ve attached a few photos of this specific box. The wood grain is very nice. And of course the sound is curated just as carefully. Enjoy- Johnathan
More info on the Hyde Distortion/ EFCcv combo box:
***Please read: Finally the completed vision. All analog filter and distortion. The Hyde Distortion Filter and the Electron Fuzz Custom CV together in one beautifully hand crafted box. The width is just 12.25″ wide and sits 5.5″ deep. Just slightly wider than an iMac keyboard.
All 1/8″ jacks for interfacing with modular synth systems. The output is still line level so we recommend using these with a GPI module or something similar for attenuation and reamping to eurorack levels. Or just use it as normal with synths and drum machines. You just need the 1/8″ to 1/4″ jacks sold here.
The Hyde Distortion Filter is one half of the famous Jekyll n Hyde box but with some enhancements.
Filter CV
Inverted Filter CV
Resonance CV
Hi Pass CV
Midrange Boost CV
Distortion circuit bypass
The Electron Fuzz Custom is a high gain distortion that sounds exceptionally good with synths and drum machines. More info here.
The HDF sounds very good going into the Electron Fuzz Custom CV distortion offering a huge range of tone shaping possibilities. You can also run the EFCcv into the Hyde DF. There is no wrong way to use this. They also operate as two individual pedals.
You can find a lot of demos of the individual pedals and a few of the combo on my Instagram page.
Domestic shipping: Free. International shipping approximately $45
**Requires an 9 volt power supply – not included.Click here.
International Priority Shipping: **Shipping for orders overseas is determined upon request. Feel free to message us with any questions. Click here.
This item has sold
For your consideration, a very nice oiled walnut dual distortion box. These are normally special order only, but we got a little breathing room. I think I may have one more of these panels left after this one. I will not be restocking this color option after they are gone. The Nuclear Winter White is great for low light situations or for when you’re trying to make your studio a little less drab.
The cut of wood is very nice. Light to dark on the sides and a rich color pattern on the front.
A little background:
By request we took two Electron fuzz Custom (euro pedal) units and put them side by side into one box. This is great for anyone who wants to do some serious “stereo” analog distortion. All 1/8″ jacks. Use a standard 1/4″ to 1/8th” cable to operate with synths, drum machines or your DAW. When using with eurorack we suggest using a GPI (Guitar Pedal Interface) module for best results. If your into extreme sports try running one EFCcv into the other for total decimation.
It 12.5″ x 5.5″ in size. Just slightly larger than an iMac keyboard
Natural Oiled WalnutBlack CherryBlack Cherry
More about the EFCcv euro pedal…
•••Euro Rack Pedal only! Sorry guitar people this pedal only has 1/8th inch jacks. All jacks are on the top side/face of the pedal. It is intended to connect to your euro rack system.
4 CV inputs work on a positive +5 voltage. Safe to run higher voltages in but you wont notice much change past 5volts.
CV Control:
“Hurt“, “Pain“, “Feedback OSC“, and “Distortion Out” all have independent CV controls.
“Hurt” works as a Hi-Pass. “Pain” works as a low pass. Both of these tone controls are tied to gain stages. Changing these also affect the amount of gain passing to the next gain stage. This produces a more chaotic form of tone control and a wide range of textures. “Feedback OSC” is a noise making function that can produce sounds ranging from low pulses or bit crunch to tunable wha-screaming self oscillation. The tone of the Feedback OSC is greatly dependent on Hurt and Pain controls. “Distortion Out” is the volume of the distortion pedal. It works like a basic VCA. The Distortion Out is independent from the “Bleed Out” that functions as a clean pass circuit. Ideal for mixing distortion with synths or anything from vocals to drum sounds.The new input impedance knob: reduces the amount of signal hitting the distortion circuit.
Concept: The clean signal pass provides a way to keep the fidelity of the original signal intact while mixing the distorted signal over it.
Function: ***This is a high gain distortion pedal. Please expect it to behave as such. In short it will amplify line noise. Moog products tend to be very clean. Dave Smith synths such as the Pro2 tend to have a higher noise floors. While no signal is being run through it the noise floor will be amplified. If a square wave CV signal is left on you may hear “CV tick” as the transistors switch from open to closed.
More about the Electron Fuzz Custom:
The Electron Fuzz “Custom” is an extremely high gain distortion. Seriously, normal volume setting is at about 10% of its full output potential. Two gain/tone controls “Hurt” and “Pain” give a variety of tone textures and a feedback noise loop can be adjusted to add a very gritty almost 8-bit sound or a squelching scream. (Great for droning or well crafted solos and recording). The extra stomp switch adds 2 more additional gain stages and a boost of high end to the sound. Best of all the distortion oscillates when notes are held adding a new level of expression.
Here is a great demo video of the non-cv EFC from the “Pedal and Effects” youtube channel featuring Alessandro Cortini of NIN, Sonoio and Modwheelmood.
Extremely high gain for recording direct to your DAW
Use with guitars and keyboards
VU meter responds to your playing
The red LED switches on when boost mode is enabled. A convent way to know where you are when playing.
• Knob controls:
A unique approach to tone control…
Hurt:Controls the gain of 3rd gain stage. Lowering the gain will also reduce low end.
Pain: Controls the gain of the 2nd transistor gain stage. Lowering the gain will reduce high end.
Output: Volume/saturation. Take some of the edge off the mix or crank the pain and hurt all the way for a big, dirty, crunchy fuzz.
FB Noise: Adjusts the amount of feedback in the circuit for noise making. Creates a weird octave mod fx.• Switch controls:Low cut toggle: Cuts the low end for a slightly less bassy more gated sound.
x1000 gain:On left stomp switch. This takes your sound through an addition 2 transistor gain stages and pushes the electrons way past 11! The booster switch adds a loud and dirty, thrash crunch to this versatile pedal. Incredible for feedback noise and FX textures. Can cause the parasitic frequency oscillation but sounds awesome while playing.
True Bypass: Lets you play through the pedal.
• Meter: Responds to your playing, and reflects first gain stage transistor distortion. Illuminates when active.
***All purchases done through Paypal. Units are always shipped ASAP. Please note when purchasing from eBay shipping charges may be vary.
****International shipping can vary. Typically I will credit back any difference when your unit is ready and I am able to verify exact shipping to your specific location.
Domestic shipping: $free International Priority Shipping: We cover half of international shipping on this box!
**International shipping charges are estimated. We will invoice you for the shipping once we can determine the exact cost to your country. Feel free to message us with any questions.
Only one available. If you try to purchase it and PayPal won’t let you the unit has sold. I will be back on Monday to update the website.
This unit requires a 9volt power supply with a negative tip. It should be able to deliver at least 150mA. I recommend the Truetone 1Spot, click this link to view.
This item has sold
EFC Heathkit Precision
For your consideration. A vintage Heathkit Precision vacuum tube volt meter converted into an Electron Fuzz Custom pedal. This is the standard pedal version. Quite aggressive. A serial numbered ID tag is mounted on the right side indicating it is an authentic member of the RMLfx family.
Two jumbo toggles have been added. One to switch to the x1000 screaming distortion (left side), the other works as a bypass (right side). Another jumbo LED glows to indicate power is connected. The two fancy knobs are the “Hurt” and “Pain” controls. The two lower knobs are the volume and the “Feedback noise”. I will include an card that defines the functions.
This is intended to be a studio piece and is not “Stompable”. But it can sit comfortably on a table for alternative styles table top performances and live in your studio as a secret weapon.
The knobs are all original. In the center is a new toggle switch for the low cut. The meter has a good response and at full volume hovers around the zero’ed center.
Size is about 8″x5″x5″ accounting for the handle and the bezeled meter face.
This light military green vintage box with original knobs and glowing jewel garnered to turn some heads and invoke questions about what it is. As always we do our best to keep the original form without drilling a bunch of holes and ruining the classic feel. While the patina of this box shows its age the unit has been cleaned and restored to the best of our abilities.
This unit is designed to ether sit upright or lay on its back.
In/Outs and power (9volts negative tip) are on the left side of the box. Print is laser etched.
More about the Electron Fuzz Custom Pedal:
The Electron Fuzz “Custom” is an extremely high gain distortion. Seriously, normal volume setting is at about 10% of its full output potential. Two gain/tone controls “Hurt” and “Pain” give a variety of tone textures and a feedback noise loop can be adjusted to add a very gritty almost 8-bit sound or a squelching scream. (Great for droning or well crafted solos and recording). The extra stomp switch adds 2 more additional gain stages and a boost of high end to the sound. Best of all the distortion oscillates when notes are held adding a new level of expression.
Here is a great demo video from the “Pedal and Effects” youtube channel featuring Alessandro Cortini of NIN, Sonoio and Modwheelmood.
[list_circle]Things I personally enjoy about this pedal:
Fuzzy to crunchy tones
Wide range of possible textures and character
Expressive distortion oscillations
Feedback noise loop for unusual sound design
Extremely high gain for recording direct to your DAW
Use with guitars and keyboards
VU meter responds to your playing
[/list_circle]
The red LED on the radio tower switches on when boost mode is enabled. A convent way to know where you are when playing.
• Knob controls:
A unique approach to tone control…
Hurt: Controls the gain of 3rd gain stage. Lowering the gain will also reduce low end. Pain: Controls the gain of the 2nd transistor gain stage. Lowering the gain will reduce high end. Output: Volume/saturation. Take some of the edge off the mix or crank the pain and hurt all the way for a big, dirty, crunchy fuzz. FB Noise: On/Off adjusts the amount of feedback in the circuit for noise making. Creates a weird octave mod fx.
• Switch controls: Low cut toggle: Cuts the low end for a slightly less bassy more gated sound. x1000 gain:On left stomp switch. This takes your sound through an addition 2 transistor gain stages and pushes the electrons way past 11! The booster switch adds a loud and dirty, thrash crunch to this versatile pedal. Incredible for feedback noise and FX textures. Can cause the parasitic frequency oscillation but sounds awesome while playing. True Bypass: Lets you play through the pedal.
• Meter: Responds to your playing, and reflects first gain stage transistor distortion. Illuminates when active.
***All purchases done through Paypal. Units are always shipped ASAP. Please note when purchasing from eBay shipping charges may be vary.
****International shipping can vary. Typically I will credit back any difference when your unit is ready and I am able to verify exact shipping to your specific location.
Price: $499 Domestic shipping: Free Aprox. International Shipping: $45.00
**If this has sold the “Buy Now” will not work. I will update this page to reflect availability at my soonest possible opportunity.
**Requires an 9 volt power supply – not included.Click here.
This item has sold.
Last one! This is indeed the last of this format. I don’t have plans to re-stock the panels which would take a redesign of the PCB. I’ll be making some different boxes in the future. We are offering Free Domestic shipping to anywhere in the US and we cover half the shipping to anyone outside the US.
A FREE GPI (Guitar Pedal Interface) eurorack module is included with your purchase so that you can integrate it into your eurorack system.
Please read:
For consideration, a Large Format Electron Fuzz Custom in a distressed wood box.
I haven’t had one of these available for a while. European Beech stained Red Mahogany.
All in and out jacks are 1/4″. Perfect for interfacing with larger modular systems. You can still interface it with eurorack. but you’ll just have to use 1/4″ to 1/8″ cables. Use something like this! I always recommend using one of our GPI (Guitar Pedal Interface) Modules with modular systems for best results.
Panel is hand drilled, wood box hand crafted and distressed in painful ways.
Very snappy vintage meter. Please be aware that all vintage meters show signs of age and may contain a ghost or two. They are very old. The meter on this one is military quality.
This is our flagship distortion. Its worked its way into many incredible music acts and studios across the world. Part of our legacy.
Some photos, I’ve attached one next to a Metal Zone for scale. This is a larger pedal.
More about the EFCcv pedal:
****This is an advanced modded version of the regular Electron Fuzz Custom. The “EFCcv” has a number of features not available in the aluminum etched boxed versions. With the addition of 4 Control Voltage inputs to control the major features the sonic possibilities have been even further expanded.
***Control voltage features. +5 volts controls “Hurt” “Pain” “Feedback Noise OSC” and “Distortion output” the EFCcv also has a new input attenuation knob.
The inputs are large format 1/4″. The top panel is a very thick 1/8th inch aluminum plate. the EFCcv Requires a standard 9volt power supply (not included)
“Distortion Out” is the independent distortion volume. The “Output” CV controls the distortion out and works as a simple VCA. “Hurt” and “Pain” are tone controls tied into different gain stages. Both are controllable via CV.
The “Bleed Out” knob controls a clean mix. If your using this with keyboards or with guitar and wish to maintain the integrity and warmth of your original signal you can mix in a separate boosted clean signal. Both clean and distorted signals can be controlled separately. This works very well with bass guitar and helps retain the low end.
The “Decay” toggle engages a couple of germanium diodes. They add a saturation to your clean signal only. Adds a nice flavor when mixing that clean signal back in with the fully distorted signal.
The “FB OSC” or “Feedback oscillation” can make the pedal sound almost 8bit or add some interesting screeching characteristics to your sound. This effect is still separate from the clean mix increasing the ability to add texture to a warmer boosted signal. The CV control can create ramps up or down in pitch.
If you have any special finishing request things like color stain or types of meters please contact me: Click here to e mail directly
Domestic shipping: $free International Priority Shipping: $59 Requires an 18volt power supply with a negative tip that can deliver at least 150ma. (Not included.) Buy one here.
**International shipping charges are estimated. We will invoice you for the shipping once we can determine the exact cost to your country. Feel free to message us with any questions.
Please read:
The circuit is the same Hyde Distortion Filter found on the now discontinued Jekyll n Hyde dual filter boxes and the smaller Hyde DF euro pedal with the expanded CV. There is just two of everything.
We recently had an order for two Hyde Distortion Filter euro pedals so we custom made this dual box. By rotating the Serpa Custom box vertically we were able to fit two of the circuits side by side. It’s a different look and takes up less space left to right.
Since we are no longer taking orders for the Jekyll n Hyde dual filter box this seems like a nice alternative for folks that would still like a dual mono filter setup.
Unique to this version is an input link toggle. Use this to patch in a single mono audio source and send it to each filter. **Probably not recommended to link inputs while using the unit with a stereo signal. You may get phase cancellation!
And a “Misc” mod. The Misc mod is similar to the Misc mod on the original Jekyll n Hyde Serpa box that functioned as a cross resonance feedback mod. I say “similar” because the mod points were different on the Jekyll filter. Here we have two identical filters so I’ve only got one position to link the resonant feeds back. But it sounds e’ffin cool. It produces some unpredictable overdriven distortion that varies depending on what your feeding into each filter.
Two LFO outs. One for each slow drifting LFO.
LFO out can also be used as a CV input for the LPF (low pass filter) the filter will respond differently than with the dedicated LPF CV jack on the front panel. They can be patched to any of the CV inputs on ether filter.
But what is a Hyde Distortion Filter?
This is a low pass (all analog) diode ladder filter with two distinct pre-distortion circuits. Depending on how the knob is set there is a third district sound where the two signals meet.
This is a lower gain distortion so it works well with noisier synths. Since the filter is being overdriven by the pre-distortions you get a very unusual tonal quality. Tone can be affected by increasing or decreasing the output of whatever instrument or pedal you’re feeding into it.
You can bypass the distortions for a clean input. It has a very slow drifting LFO to keep the filter from sitting in a static position. There is a particular “worble” to this circuit. Much like vintage gear there is a touch of instability. You would hear this predominately when cranking up the resonance and clamping down the filter. Something not easily achieved with plugins or soft synths.
**Requires a regulate 18volt DC Supply. Standard negative tip with a min of 150ma. (not included) I recommend this one: the ECB004 You can buy it directly from Sweetwater.
The Hyde Distortion Filter can run on lower voltages for a dirtier sound. For instance a 12volt supply that can provide enough current will drastically change the sound. The lower voltage will affect the smoothness of the filter. Experimenting with lower voltages will not damage anything. Just don’t use more than 18volts.
***All purchases done through Paypal. Units are always shipped ASAP.
****International shipping can vary. I will invoice for shipping along with the final payment once your unit is ready to go.
**International shipping charges are estimated. We will invoice you for the shipping once we can determine the exact cost to your country. Feel free to message us with any questions.
This item has sold.
***Please read: I wanted to do something special for our 1000th box. It’s a commemorative milestone in RMLfx history. Never expected we would end up building this many custom boxes. So for your consideration here is a one of a kind one off distortion pedal.
The original Sprague TEL-OHMIKE TO-3 unit was in an old beat up metal box so I crafted a solid vintage style box out of red oak. No plywood or particle board. The entire box weights a little over 7 lbs. We added a nice leather handle thats fully functional. About 13.75″ wide by 10.5″ tall.
**This is a high gain distortion circuit. With guitars (At its max settings) you might get feedback oscillation depending on the pickups you’re using. However that feedback does not exist when using this with synths and drum machines. So while there should be plenty of usable settings with guitar and bass I recommend this for studio and experimental use. Live situations may be unruly.
The front of the panel shows its age with lots of nicks and scratches. This was a 1950s unit so you’re looking at 70+ years of age. The plastic cover over the center dial is warped and yellowed. Old adhesives mark the surface of the panel. Original knobs are set on the potentiometers. The on/off toggle turns the unit off. The “paper-mica” switch adds a diode symmetrical clipping.
We cleaned it intensely but left the residue marks to keep that vintage patina. In/Out jacks placed on the lower left hand side so the unit can sit upright in your studio. The old tube is back lit with green LEDs when the circuit is active. When the x1000 toggle is engaged additional red LEDs are added to the mix. The giant knob in the middle is the feedback oscillation. One of the defining sounds of the EFC pedal series.
I will laser etch a legend card that clearly defines each knob and switch.
The internal circuit is our Electron Fuzz Custom “Retro” high gain distortion. Unlike the standard smaller pedal it has a cleaner parallel mix (knob left of “selector”). The “Bleed” as its called is there to mix in some fidelity after you’ve distorted and compressed your signal. There is an additional “original out” that taps the EFC circuit before the internal mixing circuit. The vintage meter is also fully functional.
Domestic shipping: $free International Priority Shipping: $39 Requires an 18volt power supply with a negative tip that can deliver at least 150ma. (Not included.) Buy one here.
**International shipping charges are estimated. We will invoice you for the shipping once we can determine the exact cost to your country. Feel free to message us with any questions.
This item has sold.
Please Read:
***If you try and purchase this and the link doesn’t work, its likely it has already sold. I will fix this listing as soon as I can but I may be off gird till Wednesday Aug 4th.
This guy has a unique poison bottle etched on the front. I had assembled the Nuclear Winter White panel with a flux meter lens but noticed it had an imperfection in the powder coating. I shelved the panel thinking I might keep it for myself. The other day had the idea of engraving a design over it. Spent a few hours making some adjustments and trying different ideas until I came up with this. The laser etching eliminated the blem. Went with a natural finish. I’m very happy with the look. May have to explore natural finishes further. But for now this one is available!
BTW: The flux meter flickers and pulses to the frequencies of your audio signal. A very nice and comfortable light show especially if you’re in a dark studio.
Price: $499 Domestic shipping: $free International Shipping: $65.00 ***International shipping is estimated.
In Stock!. Ready to ship. 04/13/2023
You will need an 18volt Power Supply like this one. Power supply NOT included.
This item has sold.
Please read:
One of the last remaining Jekyll n Hyde dual filter units with a vintage meter. Vintage meters of this size are getting scarce and we need them for EFC Studio orders. I’ve had a couple of remaining panels so I’m trying to send them off to a good home. **This is not a b-stock unit.
The Jekyll n Hyde is a dual LP filter distortion box with enhanced resonant feedback. One Transistor ladder filter and one Diode ladder filter. The input can be linked to feed a mono signal into each filter creating a wide stereo effect. This sounds great with mono analog synths. Both filters have a pre drive/distortion, a post gain and germanium clipping. Each filter also has a slow drifting LFO for subtle modulation and CV ins for filter control.
***We are no longer taking special orders for Jekyll n Hyde boxes. This is one of the last remaining units. I may assemble a couple B-Stock units if we have meters and parts over time.
The filters can also be used separately for stereo processing. Just unlink the inputs with the M/S toggle in the back. Depending on how you have it dialed in the you can create a very wide stereo field or a more natural one. Both filters have a different method of distortion in the pre-drive section. Jekyll is cleaner, Hyde can be made to be fully distorted.
***I do my best to give each box its own unique look and personality. Maybe the meter are so old they are haunted?
Johnathan-
***A couple of audio samples a Jekyll n Hyde paired up with a Buchla Modular:
***All purchases done through Paypal. Units are always shipped ASAP.
****International shipping can vary. Typically I will send a payment request when your unit is ready and I am able to verify exact shipping to your specific location.
EFC Retro MINI with vintage meter: $349 Domestic shipping: $Free International Priority Shipping: $25-$70
**International shipping charges are estimated. We will invoice you for the shipping once we can determine the exact cost to your country. Feel free to message us with any questions.
If the PayPal link doesn’t work it means the item has sold. I do my best to pull it from the website as quick as possible.
This item has sold.
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This is a one-off Electron Fuzz Custom Retro “mini” with a sexy vintage mini meter. The box is a heavy maple stained mahogany red.
For someone who would like a top shelf version of our most popular pedal in a smaller foot print.
Much smaller and closer in size to the aluminum box version. Sounds amazing with synths, drum machines and guitar.
I’ve included a shot next to a Big Muff for scale.
I like this smaller version quite a bit but the mini aircraft style meters are hard to come by ($$) and the size is a little harder to craft on the table saw. This one was made with our last 4.5″x6″ panel. I have no plans to make more of these for some time.
The top panel is a very hefty 8th of an inch thick piece of metal. It’s difficult to punch through cleanly without ruining our punch we use for the smaller VU meters. So we opted to hand drill a proper hole for a slightly larger vintage meter. The result is striking.
Please note this does not have the clean circuit “bleed” like on the larger “Retro” version.
ABOUT THE ELECTRON FUZZ CUSTOM
The Electron Fuzz Custom “RETRO” houses the same circuit as the aluminum pedal version but is placed in a classy wood box. ***We have added a diode clipping mod just above the meter.
This is an extremely high gain distortion. Seriously, normal volume setting is at about 10% of its full output potential. Two gain/tone controls “Hurt” and “Pain” give a variety of tone textures and a feedback noise loop can be adjusted to add a very gritty almost 8-bit sound or a squelching scream. (Great for droning or well crafted solos and recording). The extra stomp switch adds 2 more additional gain stages and a boost of high end to the sound. Best of all the distortion oscillates when notes are held adding a new level of expression.
Here is a pretty cool demo video from the “Pedal and Effects” youtube channel featuring Alessandro Cortini of NIN, Sonoio and Modwheelmood.
[list_circle]Things I personally enjoy about this pedal:
Fuzzy to crunchy tones
Wide range of possible textures and character
Expressive distortion oscillations
Feedback noise loop for unusual sound design
Extremely high gain for recording direct to your DAW
Use with guitars and keyboards
VU meter responds to your playing
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The red LED switches on when boost mode is enabled. A convent way to know where you are when playing.
• Knob controls:
A unique approach to tone control…
Hurt:Controls the gain of 3rd gain stage. Lowering the gain will also reduce low end. Pain: Controls the gain of the 2nd transistor gain stage. Lowering the gain will reduce high end. Output: Volume/saturation. Take some of the edge off the mix or crank the pain and hurt all the way for a big, dirty, crunchy fuzz. FB Noise: On/Off adjusts the amount of feedback in the circuit for noise making. Creates a weird octave mod fx.
• Switch controls: Low cut toggle: Cuts the low end for a slightly less bassy more gated sound. x1000 gain:On left stomp switch. This takes your sound through an addition 2 transistor gain stages and pushes the electrons way past 11! The booster switch adds a loud and dirty, thrash crunch to this versatile pedal. Incredible for feedback noise and FX textures. Can cause the parasitic frequency oscillation but sounds awesome while playing. True Bypass: Lets you play through the pedal.
• Meter: Responds to your playing, and reflects first gain stage transistor distortion. Illuminates when active.
***All purchases done through Paypal. Units are always shipped ASAP. Please note when purchasing from eBay shipping charges may be vary.
****International shipping can vary. Typically I will credit back any difference when your unit is ready and I am able to verify exact shipping to your specific location.
Price: $949 Domestic US shipping: Free Aprox. International Shipping: $55-$75
In Stock!. Ready to ship. 02/14/2023
You will need an 18volt Power Supply like this one. Power supply NOT included.
This is a 19″ 3U studio rack. Approximately 6″ deep.
sn#001
Sorry, this item has sold.
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Much like the Jekyll n Hyde dual filter box but two Hyde Filters!
This is a one-off unit. I had purchased the rack enclosure a few years ago. The rack itself didn’t well work for the layout of the EFC Studio. So on a whim we decided to put two of the new Hyde Distortion Filters with the illuminated meters (and full CV) inside instead.
I’ve been working on the new “Retro” (wood boxed single version) with the illuminated meter and felt this double unit needed to exist. Not many 19″ studio racks have CV but I thought it might be better to have it rather than to leave it out.
On the back are 1/4″ in/outs jacks for both the left and right modules. Standard instrument line level. This is not an XLR unit. I have added an input link via toggle on the front, much like whats on the Jekyll n Hyde boxes. That way you can create crazy stereo soundscapes from a single mono instrument. The rack unit is powered by an 18volt DC supply. (not included) Same supply used for Jekyll n Hyde boxes. A large toggle on the front powers the unit on/off.
**Not sure if this will be a standard RMLfx offering but I’ll consider it based on the response we get here.
More about the Hyde Distortion Filter:
The HDF is an analog diode ladder filter with two distinct distortion circuits that blend together (pre-filter). The result can be dialed in to create a blend of the two signal paths. Where they meet in the middle is a third district fuzz. The resonance can be tuned down to about 80hz. Tuning the resonance of each unit left/right can create a ghostly sound scape of instability. Something you don’t get from VSTs and soft synths.
Pure beautiful analog moving real electrons.
There is a slow drifting LFO with its own distinct out. The LFO can be patched into any of the CV inputs. The idea behind this is to keep the filter “alive” rather than sitting in a static position.
There is a toggle that bypasses the distortion/fuzz signals completely for further creative audio sculpting.
Things I enjoy about this circuit:
The sound of the filter! Smooth and dark.
The distortion is not high gain. Works well with noisy synths.
Enhanced resonant feedback for more expressive tones
Pre-filter distortion and Post overdrive for gain recovery
Post germanium clipping/saturation
CV filter control, use modular gear to ….modulate!
Slow drifting LFO modulation keeps an otherwise stagnate signal alive.
True Bypass
• Knob controls:
Up: Pre-Distortion Hyde: Filter Fortis: Resonance Down: Post-Drive Nefras: LFO Modulation “Y” LED: LFO Pulse Blas: LFO Amount Zeal: LFO Speed React: Germanium Clipping **Requires a regulate 18volt DC Supply. Standard negative tip with a min of 150ma. (not included) Will run on lower voltages for a dirtier sound as long as the power supply can provide enough current. Lower voltage will affect the smoothness of the filter.
**We will ship this UPS w/signature. Overseas purchases please be aware of international import tax and duties.
Domestic shipping: $23-$35 International Shipping: $50.00 ***International shipping is estimated.
**Requires an 18volt regulated DC (neg tip) supply with a min150ma. ***All special orders require a deposit to start. The remaining balance due will be invoice when unit is ready to ship. ***This is a very custom item. Orders can take as long as 45-60 days.
***We are no longer taking special orders for Jekyll n Hyde boxes. We may have some B-Stock units in the future. Please check back!
2020 update: At this time we are un able to offer boxes with lids.
The Jekyll n Hyde is a dual LP filter distortion box with enhanced resonant feedback. One Transistor ladder filter and one Diode ladder filter. The input can be linked to feed a mono signal into each filter creating a wide stereo effect. This sounds great with mono analog synths. Both filters have a pre drive/distortion, a post gain and germanium clipping. Each filter also has a slow drifting LFO for subtle modulation and CV ins for filter control.
The filters can also be used separately for stereo processing. Just unlink the inputs with the M/S toggle in the back. Depending on how you have it dialed in the you can create a very wide stereo field or a more natural one. Both filters have a different method of distortion in the pre-drive section. Jekyll is cleaner, Hyde can be made to be fully distorted.
***Keep in mind the look may vary depending on type of wood and meter used. Should you have any special requests as far as color just send me an e mail. …or you can leave me to my own devices. I do my best to give each box its own unique look and personality.
Johnathan-
***A couple of audio samples a Jekyll n Hyde paired up with a Buchla Modular:
Watch some demos: //www.youtube.com/embed/NBeLn0fqW2o?list=UUSfj4uitxA5QRvqRa7JyX-A
FINE PRINT: *If you request special shipping, please contact RML via email at johnathan@retromechanicallabs.com after placing your order.
*INTERNATIONAL BUYERS remember all taxes, tariffs or additional fees are covered by you and your responsibility to pay upon pickup/receipt of item(s). Please check with your customs office for more details.
