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I Built a Chorus Pedal Using a $2 Echo Processor (Breadboard Build)

Grant Kelsay

10,902 views

Have you ever wanted to create your own chorus guitar pedal? In this video, I’ll show you how to create the simple Little Angel chorus circuit that can be created with basic and accessible parts.

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00:00 - Intro + Subscribe!
00:21 - Little Angel chorus
00:30 - Power section
04:30 - Opamp stage 1
08:40 - Opamp stage 2
12:28 - PT2399
22:19 - Tone test

20 Comments

@ruetzaudio 6 months ago

If you add a basic op amp mixer stage to the input of the chorus circuit (for the purpose of mixing the wet chorus output signal with the dry guitar signal) you will have a flanger 😊

@aseifca21 6 months ago

Love it... Please keep these types of vids coming! Not just the build and test but including reading the schematic. Including that extra little bit shows that even though it looks intimidating. It can be done rather easily. That makes this type of project more accessible to beginners .

@ImLuchiano 6 months ago

As an electronic tech since high school, i say "Hell yeah" to these videos. I also make guitar pedals and it's tru that they can be really cheap and, with some practice and/or help, really easy to build and even to design. Really cool chorus you made

@fernandobalieiro 6 months ago

Awesome video, loving this series

@PraptiMoore 6 months ago

Thank you for the great content!

@the_mad_robot 6 months ago

I’ll pile on as well, these videos are great. I’m just getting into this and these are just what I need.

I just saw a short you did about a tremolo circuit. Is a full length video on that coming soon?

Keep up the good work!

@dittowaveradio 6 months ago

Great Video!!

@abril8596 6 months ago

fantastic!!!!!!!!

@jrg770 6 months ago (edited)

The BOSS CH-1 (originally Analog using Matsushita MN3101/MN3007) used an IC that is essentially a PT2398. I happen to have one. It's much larger than the PT2399 though. I'm not sure how that compares to the 2399 but if you can find one, you can build a CH-1 (digital).

@NicZimmermann 6 months ago

WoW! Just amazing job! I love the step by step explanation and it made me want to start too. I was curious where you'd get your small hardware like capacitors, resistors, jumpers, potentiometer, etc... ?

@venumus 6 months ago

Damn bro doing the lords work. i guess i need to get my work bench finally built so i can finally use my bread boards lol

@Clayphish 6 months ago

I’ve been watching these from the beginning. The way you’re moving the size of that breadboard is going to become a problem. 😂

@SeanDuranMusic 6 months ago

I'm an anolog nerd, where do you get your electrical components? I just refurbish my stuff from throw away electrical stuff people don't want. But I want to start building this stuff to practice reading schematics better. And how do you prepare for such builds? Meaning do you gather all components, maybe that should be a video lesson. It's a big task to build electrical circuits. Or thats the way it seems to me. Enjoying your videos.

@ariebaudoin 4 months ago

but how does it work?

@Charlie-Creed 6 months ago

Where do I buy this stuff from

@cedacedic7238 4 months ago

after making a pedal on a breadboard, is the next step of actually bringing it to life making it on a veroboard?

@dariorodriguezdeamerica 4 months ago

it sounds like $2, mission accomplished.

@k-dogstor1170 2 months ago

I've built this after quite a bit of hassle, mostly due to poor quantity pt2399. Once PTC in stalled it start working. Other issue I have is the sweep on the pots, bunch up at the end, with the depth the worse. I see u have a 500k pot for depth, most schematics lost this as a 100k.

@blumppers 6 months ago (edited)

Hey Grant! I'm enjoying your videos, so keep em coming! I have a question regarding the diode in the power section, at 2:20 in the video. I don't understand why the diode connects between the +9V rail and the ground rail. I would have thought that the diode should go from +9V to a new row, and C8 connects that row to ground. Are they not supposed to be in series? I am quite new to all of this, so I'm just trying to make sense of it all. Thanks :)