Fredric Effects Harmonic Percolator - Regent Sounds

Fredric Effects Harmonic Percolator


This is an improved clone of the Interfax Harmonic Percolator, an oddball overdrive/distortion pedal from the 1970s popularised by Steve Albini of Shellac.

These pedals are built to the verified correct schematic and are a 100% accurate clone of the sought-after original, only with the addition of a switch to offer three different clipping options which greatly adds to the versatility of the effect.

The Fredric Effects Harmonic Percolator uses the correct vintage transistors (NOS 2N404 Germanium and 2N3565 Silicon) and 1N695 diodes - all the hard-to-find parts of the originals, but in a modern pedal-board friendly package, with DC power, LED indicator and normal rotary pots instead of sliders. So you can have the most accurate Harmonic Percolator clone possible without sacrificing usability.

Click & Collect

Simply select this option at checkout and your items will be available to collect in store.

Standard Shipping 

Our standard shipping is via Royal Mail or UPS on a 1 - 2 day service and is free for all orders in the UK over £75.

Next Day UK Shipping

Our next day delivery service is shipped using Royal Mail or UPS depending on the size of the item.

International Delivery 

We ship worldwide via UPS, DHL and TNT.

Online Returns

If for some reason you are not happy with your online purchase you can return it to us within 14 days for an exchange or refund.

In Store Returns

If you change your mind about your purchase, please return the unused goods to us with the original till receipt within 14 days and we will offer you an exchange or credit note.

Free UK shipping on orders over £149

Fredric Effects Harmonic Percolator


Use coupon code WELCOME10 for 10% off your first order.


No more products available for purchase