This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.

Wednesday, July 19, 2017

Earthquaker Devices Chrysalis

Another oldie but goodie from EQD. The Chrysalis (now discontinued) is essentially a Speaker Cranker (with a pre-gain control instead of its normal gain control) into a Rat-style tone control, followed by a LPB-1 for gain recovery. Schematic can be found on FSB.


8 comments:

  1. Buenisimoo! Diodoss de reemplazo para los bat48?

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    1. Pretty much anything you have on hand or want to try.

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  2. Facu.. proba con los 1N400X. O usa zocalos y experimenta.

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  3. I made it! It's verified! I used mpsa42 instead of the mpsa18 and some diodes I found around.
    Sounds good! It's a very light overdrive.
    I would like to mod it for bassguitar. What should i do to get that?

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    Replies
    1. Thanks for verifying! For bass typically you just increase the value of the caps in the audio path. You'll have to play with the value of the cap for the tone control (currently 4.7nF), but the 3, 100nF and the 220nF caps are the ones you'll want to increase. You could start with 3, 470nF and a 1uF and experiment from there.

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  4. Can i use some mspa13 instead mpsa18? tks

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    Replies
    1. A 2N5089 or BC550C would be a better sub.

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