The Best Sounding Harmonic Percolator? Very Possibly!
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Order before 9pm UK time for next-day dispatch!
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✓ 30-day hassle-free returns
SHIPPING TO THE USA – The Royal Mail has created a new PDDP (Postal Delivery Duties Paid) service, which will calculate exact costs at the moment we book your shipping. While we are happy to absorb some of the costs, if the cost of the pre-paid duty is significantly more than what you have paid when placing your order, we will be in touch to request the balance is covered by you.
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We offer free 48-hour tracked UK delivery on all orders over £150! Order before 9pm for next-working-day dispatch.
We offer 30-day hassle-free returns so you can pick the item you want safe in the knowledge that if it's not for you, we'll take it back and refund your order.
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Please note that some orders may take longer to be processed before shipping during the busiest periods of the year.
Customers hold the right to return a product for a full refund if I am notified within 30 days of delivery.
If a product is delivered in a defective or damaged condition, please contact me immediately with details of your order.
To be eligible for a return, the item must be in the same condition
that you received it. It must also be in the original packaging.
Please note, the cost of return delivery is to be paid by the customer. This will be reimbursed if the item is shown to be faulty.
To complete a return, I require a receipt or proof of purchase. Please do not send any items back to the manufacturer, and please do not send any items to me without contacting me first.
Once I have confirmed that I will process your return, please send the item to:
Boost Guitar Pedals (returns)
84 Wolf Lane
Windsor
Berkshire
SL4 4YZ
United Kingdom
My first course of action for faulty items is to replace them like-for-like. If this is not possible, a full refund will be considered as an alternative.
If returned within the 30-day period, your refund will be processed and a credit will be applied to your credit card or original method of payment.
The customer is responsible for paying return shipping costs. Shipping costs are non-refundable unless a product is proven to be damaged or faulty upon delivery.
It is recommended that items should be returned using a trackable shipping service in case the item goes missing en route.
The Fredric Effects Utility Perkolator MkII is a heavily modded version of the 1970s Interfax Harmonic Percolator, giving you access to all sorts of overdriven, fuzz-stortion, octave fuzz and ring mod sounds.
The Utility Perkolator MkII features higher gain, lower leakage Russian germanium transistors and a low pass filter which only removes the high-end hisses and glitches associated with the original Harmonic Percolator. The result is a tighter and more controllable effect which is still capable of producing the classic Harmonic Percolator sound but with a much lower noise floor.
Internal dipswitches allow you to remove the low pass filter from the circuit if you prefer a more vintage-correct sound from the Utility Perkolator MkII.
Crank it up and listen as the germanium transistors fold under the pressure and get almost square-wavey, opening the door for some serious fuzz fun!
Oh, and that wedge enclosure looks incredible, doesn't it!
Select from either germanium or silicon clipping diodes, or remove the clipping section from the circuit with the toggle in the middle position for a volume boost and a sustaining but less distorted character.
The Utility Perkolator MkII includes a ring modulation mode, allowing to to achieve splattery, octave-like sounds and other trippy effects.


