Aion Fractal (Pearl OD-05)

[Marshall Arts]

having been busy with my own projects, I almost forgot, how rewarding it can be to build a pedal in a day from scratch, when somebody else has done almost all the work for you, including mod options, drill templates etc. So, I had this PCB lying around for probably a year or so and as it was raining today, I decided to give it a try with some components I had lying around. Graphics still to come...

I decided to to the following mods: 
- Modify Q (wider) with 6.8nF / 100nF
- Use a vintage JRC4558D for IC 2 (serial 6201 - I don't believe in mojo, but this one sounds good, and as I had it...)
- TL072IP for IC1
- Reduced minimum gain (R23 = 1k)
- 100kA for volume pot
- 10mm blue LED
- Second clipping section: BAT41 and 1N914

It sounds nice - many sounds on tap, sometimes it sounds almost like the the clean sound is blended into the overdriven sound. Not a high-gain thing, but great for bluesy tones or even a boost with the option to EQ to the resonant frequency of your guitar...

[stringsthings]

Tidy build.   Where did you get those knobs?
I like the big blue LED.

[gordo]

Just finished this one myself and ironically the build I've been scared to finish is the Linda Looper. It's the next one up on the bench and a very anticipated build...

[Marshall Arts]

Tnx. Knobs are from Musikding: http://www.musikding.de/Aluminium-Knopf-gerillt-10mm-schwarz. I drill these with a 6.35 mm drill and simply push them on the shaft. No set screw, but they hold very tightly! Great for 1590a builds!

[Marshall Arts]

<->

[Matt]

In the process of populating my Pearl right now. Glad I read your post because I forgot that I wanted to reduce R23.
Did you try the original q values? Which do you prefer

[Marshall Arts]

In the process of populating my Pearl right now. Glad I read your post because I forgot that I wanted to reduce R23.
Did you try the original q values? Which do you prefer

I put the respective caps into sockets and tried some combinations. I like the wider Q better... Good luck!

[Marshall Arts]

Etching done, still need larger knobs, though...

[Marshall Arts]

Better knobs, now it's done.

[artstomp]

..i'm glad that mojo JRC4558 i sent you sounded good on that Pearl OD-05...

[Marshall Arts]

..i'm glad that mojo JRC4558 i sent you sounded good on that Pearl OD-05...

Haha, thanks! Yes, now it found a good home!