EFC in repurposed vintage 1957 EICO test box


Price: $399

SN# 502 One of a kind
Domestic shipping: $free
International Priority Shipping: approximately $55

**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.


Sorry, this item has sold.

Feedback OSC breakout box, TRS patch cable and additional leather strap included.

***Please read***

Image as size example. You will only receive both pedals if you purchase that package.

For your consideration is this 1975 EICO vintage test equipment box that has been re-purposed into an Electron Fuzz Custom distortion box. This is the standard guitar pedal version. We wanted to use the original knobs and holes without having to modify the front panel. Very rarely can we pull that off. The leather strap has been replaced with a new laser cut distressed strap. We are including a shorter strap so if you decide you want a more form fitting handle you can switch it out or use it on something else.

Special Mod: We have included a Feedback OSC bypass breakout box. When connected with a TRS cable (included) the stomp switch will bypass the feedback oscillation. When not plugged in the circuit works as normal.

Additional package deal options: Buy both the EICO EFC and a regular EFC for a discounted price (save $29). Buy the EICO EFC, a standard EFC and a GPI eurorack module for even more savings. (Save $68)

Please visit our Instagram page for short video clips: Obliterations_RML

About this box:

    • It is from 1957 making it 60 years old.
    • Fully functioning meter
    • It is very large! 9.5″ x 6″ x 5.5″ deep
    • It comes with a breakout box and cable that enables or disables the feedback OSC effect. When not plugged in the feedback knob works as normal.
    • IN/OUTS laser etched on right side. Story of the Electron Fuzz is laser etched on the left side.
    • Runs on a standard 9volt power supply (not included)


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.

More about the EFC pedal:

Here is a great demo video from the “Pedal and Effects” youtube channel featuring Alessandro Cortini of NIN, Sonoio and Modwheelmood.

Please read the brief history of the Electron Fuzz here.

    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


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.


johnathan July 16, 2017 Uncategorized