The Oreo Ringer PCB is a suped-up octave-up that can reach fuzz capabilities! Based on the Green Ringer but with several mods and a healthy volume boost.

Out of stock

SKU: PCB-OR1 Category: Tags: , , , ,


The Oreo Ringer PCB started out as a simple clean octave-up based on Dan Armstrong’s famous Green Ringer. I originally built one for my good friend Yonatan, who tried it out but was unsatisfied that the octave was not that obvious. He also complained about a loss of gain when the pedal was on. So I did what I had to do as a pedal builder, and went straight to the lab for some good old R&D, while also thumbing deeply through the stompbox forums.

A few simple mods and some splicing and dicing later, and I realized that I actually had a suped-up octave-up that can reach fuzz capabilities! You could just use it to hone in on that clean octave above your tonic, exaggerating some great harmonics generated by your favorite Fuzz Face.

But why stop there? I say, let’s blow shit up with the Gain knob, pushing the original schematic’s intentions way out of balance and making that octave not only obvious, but overt, even obnoxious. And that gain loss, which was a common symptom of clones of the original circuit, was now eradicated with the help of a healthy volume booster. Now you’ve got plenty of headroom to give that octave-up some real personality. Go ahead, push it further to those weirdo fuzz tones without losing any gain.

If I had to name-drop the tones that this Oreo Ringer PCB circuit reminds me of, I would have to go with the songs that I most frequently use to test this circuit: “Cosmik Debris,” “Purple Haze,” and “Icky Thump.”

This circuit slightly diverges from other circuits I normally make, because I would have to say that it most obviously works as intended with guitar signals. Bassists would certainly benefit from the same type of snarl as it does from other octave-up effects like, say, the Foxx Tone Machine. But honestly, though, that octave can be achieved on any piece of wood I’ve tried above the 12th fret. So have a ball.

Note that this is the price only for the circuit board. You will need to source your own parts.


There are no reviews yet.

Be the first to review “Oreo Ringer”

Your email address will not be published. Required fields are marked *

Return Policy

I gladly accept returns and exchanges.
Contact me within: 7 days of delivery
Ship items back within: 14 days of delivery

I do not accept cancellations on custom orders.
But please contact me if you have any problems with your order.

I cannot accept returns or exchanges for custom or personalized orders
unless the item arrives damaged or defective.

Conditions of Return:
Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.

Shipping Information

Processing Time:
Depending on availability, the time I need to prepare an order for shipping varies. For custom builds, please allow 3-4 weeks lead time. For finished builds, please allow 1-2 weeks for processing.

Estimated Shipping Times:
Eco Post: 7–5 business days estimated distribution time for most destinations (see below), 10–12 business days estimated distribution time to Australia and Hong Kong.
Registered Mail: 4–8 weeks
I will do my best to meet these shipping estimates, but cannot guarantee them. Actual delivery time will depend on the shipping method you choose.

*** UPDATE***
Postal systems around the world appear to still be adapting to the global impact of COVID-19. This means that shipping times may be longer than we had previously been used to. I ask that you please be patient while we track the status of your package together.

Shipping Methods:
I ship out all pedal orders via Eco Post. This method is typically quicker than Registered Mail (advertised estimation is 7–5 business days, but due to the current situation has been known to take a bit longer, depending on the country), and it also features computerized tracking and proof of delivery.
This method is available in the following countries: Austria, Australia, Italy, Ireland, the United States, Belgium, Brazil, the United Kingdom, Germany, Denmark, South Korea, the Netherlands, Hong Kong, Greece, Japan, Norway, Spain, Poland, Portugal, Finland, France, Canada , Sweden, Switzerland, Thailand, Russia.

For PCB orders, you can choose between Eco Post and Registered Mail.

Customers living in Israel can arrange for Local pickup, just contact me for arrangements.

Customs and Import Taxes:
Buyers are responsible for any customs and import taxes that may apply. I am not responsible for delays due to customs.


Each Carcharias Effects pedal is hand-made by one person in his home workshop who loves making music, and making things that make music. Every purchase you make enables me to continue making more pedals, so your support is very much appreciated. That said, I take responsibility for the build quality of every pedal I make comes, and offer a 24-month warranty on each one, not covering normal wear-and-tear or abuse.

All the PCBs that I sell on this site were designed personally by me, but the fabrication is outsourced to third-party PCB fabrication services. Once they are designed, I order them in relatively small batches. I personally test every batch that I receive; however, as I am a strong believer in minimizing waste, there are cases in which I may sell perfectly functioning PCBs that might have some design flaw. I take responsibility for these design flaws (if any) and will specify their fixes or workarounds in the product's specific build document.

If you should encounter any issues with your product, please feel free to reach out to me via the contact form on this website. As I am based in Israel, I understand the inconvenience added by international shipping, and so I will be happy to assist in troubleshooting with you any problems before resorting to international shipping in case a repair needs to be made.