Magnetic Delay

Project overview

Inspired by Keeley’s Magnetic Echo. Featuring the delay circuit PT-2399 and LFO modulation, this pedal simulates tape echo sounds, delivering a warm and guitar and user-friendly type of delay.

Introduction

Magnetic Delay has a resourceful yet straightforward set of controls that are the key to this pedal’s uniqueness.  Time, FDBK, and Level regulate the delay, and Depth and Speed give you access to some very vintage or rather distinct tones.

Now let us make a deeper analysis of what each knob has to offer:

With Time control, you will be able to set the repeat length between 40ms and 600ms. This range is perfect for a classic, vintage delay sounds; excellent for slap-back or medium-length delay times.

FDBK, this knob lets you set the number of those repeats. Adjust this for a single slapback echo or turn it up for a runaway, self-oscillating, or self-regenerating echoes. You can now go back and play with the Time control to achieve unprecedented results!

The Level control is your mix; establish how loud you want to hear those echoes.

Now let’s check the even crazier ones:

Depth gives you access to deeper and deeper chorusing and pitch shifting on your echoes. As you raise the control, the Depth and Rate LED will start to glow, giving you a visual indication of the amount of modulation you are applying to the repeats.

Speed is a slight pitch modulation on your echo! As simple as that, and a good knob to play and have fun with.

Has you can see, Magnetic Delay offers you an excellent way to create unique and very musical delays. If you are into experimental sounds, Rockabilly slap-back echoes, or just want a superior classic rock-sounding echo, this pedal is for you.

Controls

• Depth
• FDBK
• Level
• Speed
• Time

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.

Magnetic Delay – Building Docs

Magnetic Delay – Drilling template