SKU: 26471373417
fredric pedals

fredric pedals Fredric Effects Utility Perkolator MKII

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Description

fredric pedals Fredric Effects Utility Perkolator MKIIFast Free Shipping No Taxes, Duties, Tariffs Free Returns $199 is your absolute final total here for the the Fredric Effects Utility Perkolator MKII pedal. This Utility Perkolator is Fredric's latest version of the highly sought after Harmonic Percolator from the 1970s, made famous by Steve Albini of Shellac. This MKII version pedal comes in a new triangular wedge enclosure and has some new features added as well. They added a ring modulator switch,

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$199 is your absolute final/total here for the the Fredric Effects Utility Perkolator MKII pedal.

This Utility Perkolator is Fredric's latest version of the highly sought-after Harmonic Percolator from the 1970s, made famous by Steve Albini of Shellac.

This MKII version pedal comes in a new triangular wedge enclosure and has some new features added as well. They added a ring modulator switch, for octavey/splattery overtones. This ring circuit is closely related to the vintage Dan Armstrong Green Ringer effect. Also, on the inside of the pedal, you will find 2 dip switches on the circuit board, to remove the low pass filter if desired (see "CONTROLS" below for details).

Demo Video:
Check out the awesome pedal demo video on this page.
Many thanks to Regent Sounds in London for this video!

 

Before we get way into the Utility Perkolator MKII, the next 2 paragraphs simplify the difference between the Fredric Effects Harmonic Percolator and their Utility Perkolator:

Fredric Effects Harmonic Percolator - this clone is the 100% vintage correct circuit, with the hard-to-find, new old-stock vintage components. It has the unpredictability of the vintage Harmonic Percolator on which it is based, with a raucous edge to the sound, and a fizzy decay note.
 
Fredric Effects Utility Perkolator - this is the result of experimenting with the Harmonic Percolator circuit for a few years. It uses lower leakage, old stock USSR germanium transistors, and incorporates a very subtle low pass filter, which takes the fizz out of the decay and makes it generally a "better behaved" Harmonic Percolator. However, it is still capable of some great, full-on fuzz sounds!

 

The Harmonic Percolator is a simple, yet fascinating circuit which readily lends itself to some tweaking. Fredric Effects already builds a faithfully vintage version of the Harmonic Percolator, however their Utility Perkolator MKII takes this circuit in another direction.

Using higher gain, lower leakage Russian Germanium transistors, and a low pass filter which only removes the high-end hisses and glitches associated with the Harmonic Percolator, the Utility Perkolator MKII has a considerably lower noise floor, and more predictable note decay. The result is a tighter and more controllable effect which is still capable of producing the classic Harmonic Percolator sound.

Reviews from our customers at Reverb:

 


CONTROLS:

Harmonics:
Controls the gain of the circuit.

Balance:
Controls the overall volume of the effect.

Si-Ge Switch:
Selects 3 diode clipping options.
Up - Silicon clipping for a smoother sound.
Down - Germanium clipping (like the original Harmonic Percolator) for a grittier sound.
Middle - No clipping, for a more open and less "fuzz" sound.
The overall volume will be higher with no signal clipping selected.

New for Version 2...
Ring Switch:

This engages a ring modulator switch, for octavey/splattery overtones. This ring circuit is closely related to the vintage Dan Armstrong Green Ringer effect.

Dip Switches on the circuit board inside the pedal:
R8 bypass, NR on - A simple, yet subtle low pass filter. By default (see photo of the inside), these switches are in the positions OFF, ON = low pass filter engaged. To disengage the filter, you can set these to ON, OFF.

 

MORE INFO:

Power Sources (each sold separately):
This effect is powered by a 9v, center-negative jack (like Boss, and most all other pedals use). Current draw is 10ma. Or it can use a standard 9v battery.

Warranty:
This product comes with the Fredric's 2-year limited warranty.

Shipping:
Ships fast! Usually same day, with Free UPS Shipping in U.S. with tracking (1 biz day processing, 1-3 business days transit time usually). 1 and 2-Day guaranteed shipping are also available.

Our added value, when purchased here at coolguitarshop.us:

  • Best total price: $199 is your absolute final/total, with Shopify Secure Checkout
  • Fast Free Shipping in U.S.
  • No Sales Taxes, Duties, or Tariffs (We pay all of these for you.)
  • No Risk: Try it on your own rig for 30 days. Don't love it? Return it for a full refund... no hassles, no costs. (We'll email you a pre-paid return label.)
  • Rock-solid customer service, 365 days a year

Enjoy the upgrades, and get into those classic sounds of Steve Albini and many others, with the Fredric Effects Utility Perkolator MKII.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 26471373417

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J. C.
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Reviewed in the United States on June 7, 2026
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Sonia
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★★★★★ 5
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Like walking on clouds with support. Thank you Ugg’s. Perfect size 8.5 Will buy again.
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Reviewed in the United States on June 11, 2026
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Jennifer
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★★★★★ 5
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Naomi L.
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Johsz Family
New York, US
★★★★★ 5
Great value and super comfy!
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These shoes are so comfortable and my new go to for summer. They are lightweight and fit like a glove. Great value
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