Echo Nightmare SMD

About The Pedal Creators

Everyone can build excellent boutique guitar pedals. Everything we do is to make that experience more accessible and user-friendlier. The Pedal Creators series are the best and easiest to build PCBs ever. Including most resistors and capacitors already soldered on board as SMD components, leaving the key values for you to experiment and craft your own tone. Now you can build a pedal you are proud of in less than an hour without any previous experience. What are you waiting for to become a Pedal Creator?

The Pedal creators – key features:

• Easy to build, no previous experience required. It’s like Lego for musicians.
• Fast assembly, finish a pedal in less than an hour. Play your favorite record and enjoy the ride along.
• 100% mistake-proof. Even my grandma can build one while she cooks.
• Build your own boutique pedal. Experiment with different values and make the pedal you always dreamed of.
• Easy to scale. Turn your passion into a money-making machine.

Project overview

The Echo Nightmare is a dream come true for everyone who likes to experiment with lo-fi delays, ambient noises, and crazy fuzzes, all in one box. With seven knobs and two switches, we can assure you that this is definitely the tweakaholics dream!

This circuit allows you to build such a versatile pedal capable of experimenting with different shape of waveforms, slapback, or self-oscillating feedback, you can even use the modulation and fuzz sounds with the delay or on their own, just by flicking the dry switch, making this circuit way more versatile than any

other delay pedals.

Introduction

The circuit of the Echo nightmare is as crazy as the tones it generates; like always, we could not expect less from the people from DBA.

The most interesting part of this circuit is, without a doubt, the XR2206P IC in charge of changing the shape of the wave, controlling depth and speed of the modulation. Definitely a unique approach for a modulated delay.

We included an internal charge pump over the original design that provides the XR2206P with 18v for the right functioning.

Every time you face a Death by Audio pedal you are in front of a challenge!

For this case, we have this fuzz-reverb-delay-noise machine featuring a pt2399, one dual opamp (MC3372 on the original, could be replaced by more common ones), one discontinued and hard to find XR2206, plus an internal voltage duble in charge of feeding this circuit with the right voltage!

In this first prototype, there was a missing capacitor in the front; you just need to wire it in between the 3pdt and the IN pad. Plus, an external wire as present in the picture of the final build!

Controls

Potentiometers

• Delay-Blend
• Delay-Time
• Depth
• Feedback
• Fuzz
• Master
• Speed

Switches

• Waveform
• Dry-Blend

For further analysis on this circuit take a look at this thread on Free Stomp Boxes Forum.

For any technical questions regarding this build don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.

Echo Nightmare SMD – Building Docs

Echo Nightmare SMD – Drilling Template A4