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, December 18, 2018

Dimension P Chorus

Had a request for this one and didn't feel like laying out another overdrive. So here you go. It's a chorus using a pair of PT2399 design to emulate the Boss Dimension C designed by Distorque. Original design thread here, schematic here for reference. I've laid it out for board mounted pots and will fit in a 125B with top mounted jacks.



22 comments:

  1. Thank you as soon as the results are ready,great Layout. :-)

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  2. Hello,
    I have a request for interesting fuzz - Parasit Studio Theremin Fuzz

    Here's build doc:
    https://www.parasitstudio.se/uploads/2/4/4/9/2449159/theremin_fuzz_doc.pdf

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  3. For what it's worth, I built the stripboard layout from Parasitstudio's website and got ticking & noise on two separate builds.

    There's a few suggestions from a user in Parasit's comment section. One suggestion was to provide each PT2399 with it's own LM7805 regulator.

    Once I gave each PT2399 it's own regulator, the ticks went away, and it was much quieter!

    Good luck!

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  4. Can you do the layout for this interesting chorus ?
    https://drive.google.com/drive/folders/0BwEUmCA5sw1bQ0doTG9RT3RfTFk
    Sounds amazing! it uses a pt2399, one ne5532 and 5 BC547
    I think is one of the deepest chorus just for one pt2399 Nice regards

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  5. This comment has been removed by the author.

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  6. Happy Hollydays! Could you, please, make a layout for that stereo mod? And maybe the double 7805's(one for each PT) I want to try to make this one.I wanted a ping pong delay and this might do the trick for me.

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  7. It's verified. I have added another 7805 according to the above comment.

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  8. I have a question. I don"t see at schem, that 5v from LM7805 go to 5 lug tl 072. Why is it go here?

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    Replies
    1. Schematic is linked above in the description. I'm guessing the designer used 5v instead of creating a separate 4.5v Vref.

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    2. Yes, i got it. Thanks. Doing!

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  9. verified too. I have added another 7805 too. It"s such chorus for kids.

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    Replies
    1. Hi, could you please teach me how to add another 7805? Where did you put it?

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  10. GOOD NIGHT. WHICH THE TOGGLE KEY USED IN MODIFICATION AND HOW TO CONNECT THE CIRCUIT TO THE SAME?
    THANKFUL.

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  11. It's working but I got a lot of high pitched noise. Tried swapping PT2399s to no effect. The only thing I noticed is a big signal drop of the 470k resistors. The high pitched noise is amplified along with the severely attenuated input signal, causing the whole high pitch issue. Any thoughts? Thank you!

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  12. I had a similar problem in another build and I found that I had a "ground loop" using both ground lugs on both (in and out) stereo female jacks. Also, there might be a short somewhere near the 2399, as I had that too. Check theese and take it from there.

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  13. Poderia fazer o Layout desse pedal aqui?! https://www.youtube.com/watch?v=iQ1y8gikPqQ e desse?!
    https://www.youtube.com/watch?v=N_vp2igXBmY&t=228s

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  14. And where the "voice" and "dry" selectors would be placed. Thanks for the help guys.

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  15. Excellent sound in the video, I would like to know where to place the connections for spdt

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  16. Shouldn't the 270R resistor of the second PT2399 be 100R?

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  17. This comment has been removed by the author.

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  18. It sounds great but it needs some mods.
    Even if
    i got my pts from china!

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  19. Its verified! Works great wt minor hassle but anyways its awesome! Jun fr Philippines

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