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.

Tuesday, March 13, 2018

Lovepedal Jubilee

Here's Lovepedal's Jubilee–pretty close circuit-wise to the Purple Plexi and Black Magic. Should be a pretty quick build. Note, if it sounds too dark, replace the 47nF cap with a 4.7nF cap. Schematic here.


35 comments:

  1. Awesome!
    If I have to replace 390pF, what would you recommend, 220 or 470?

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    1. Either is probably fine. Or you could put 2 caps in parallel to make your own 390p cap.

      https://www.allaboutcircuits.com/textbook/direct-current/chpt-13/series-and-parallel-capacitors/

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    2. Guess I have to socket and experiment :D
      Thanks buddy, awesome!

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    3. Guess that 4001 diode is reversed..

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    4. Nope. Anode to ground, cathode to +9v... Standard polarity protection.

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    5. I used a 330pf and a 56pf in // .

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  2. Hi. Is valid the LM386? Or the tl072, lm833,.. ?
    Regards from Spain
    You are the best!

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    Replies
    1. Needs to be the 386. The TL072 or LM833 are a different kind of chip.

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  3. Verified! Such a simple circuit, but it's a beast! Thanks D!

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    1. Would have had it done much earlier, but had day job responsibilities :) thanks for everything you do!

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  4. BTW- I didn't have any issues with it sounding too dark...May be my bs170's, but my advice is to roll with the stock layout posted, and go from there.

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  5. Sorry was thinking about a different build! Was also working on the deep six compressor at the same time.

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  6. I built it, it has low gain like the tube screamer. I thought I had more gain like purple plexi or guvnor.

    How to increase the gain?

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  7. What model of lm386? N1, N2 or N4??

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  8. finished mounting the pedal, you can consider verified !!! is working and with beautiful sonority.
    greetings from Brazil I will set up others with certainty

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  9. can I use other diode types to test different sonorities or does it only work with this model?

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    1. Yeah, you can experiment with different diodes and find what sounds best to you.

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  10. if I replace the capacitors of 47uf by 100uf capacitors will it work with less noise?

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    1. Not necessarily. If it sounds like you've got noise from the power rail, you could try adding a 10-100nF cap between power and ground.

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    2. I think that I have the same problem. This cap should be soldered in the power jack? I tried it, but didn't change a thing. What else you wold you suggest to lower the noise?


      Thanks very for your work!

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  11. Hi, Does the lm386m-1 meet the project? in datasheet its specifications are very similar ... since already thank you.

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    Replies
    1. It'd probably work. Use a socket though, just in case.

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  12. Can we add more gain to this one?

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  13. Hi,

    I built it, but it work similar to the noise gate :(. It fast cuts the sound. I used LM386L. Can you help me? Thanks. Sorry but i can't speak english so good. Greetings from Poland.

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