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.

Monday, April 13, 2015

G2D Morpheus

The Morpheus is a high gain distortion designed for metal players. It comes with the warning: "A hard out distortion pedal not for the faint of heart." It promises big low end and crunchy highs. Here's a demo:


The power filtering on this seems a bit extreme to me, but I've laid it out with the stock 1000µ and 220µ caps from 9v to ground, and 220µ and 22µ caps from 4.5v to ground. If you don't have some of those values on hand, try lower ones. Also, the pot numbering may have been reversed from normal on the schematic I drew this from, so be warned. 




31 comments:

  1. Thanks a bunch for this one! I'm not really a metal player these days, but always wanted to add this one to my collection!

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    1. You bet, buddy! Now go build it and take pictures :D

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  2. hahahaha, I'll finish my Sabbra Cadabra first, it's almost done!

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  3. hi can use other transistor for Q2 >

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    1. Well, the J117 is a P-channel mosfet, so I would socket Q2 and try whatever P-channel mosfet you have access to.

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  4. Hi,

    Done, masiv sound, greate noise gate. Q2 J177. There are one mistake on the PCB but ease to fix. Res 1M from Q2 - S must be connect to Q2 - G and 1 pin of TL072P connect to Q2 - S. If it is not clear then pls. check on the schematics.

    Martin

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    1. Did it not work with the 1M only connected to the source of Q2? In the schematic I used, component junctions are shown with a dot and there wasn't a dot connecting that 1M to the gate of Q2.

      http://radiostorage.net/uploads/Image/schemes/effectpr/morpheus-g2d-scheme.jpg

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    2. Built it. Everything works apart from after a while the sound fades out to nothing. Comes back sometimes when I strike the strings. Not as much volume as I expected either.
      Any ideas?

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    3. Sounds like a biasing issue maybe? Are you getting half voltage on the VR trace? (Orange trace)

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    4. Rebuilt it and don't get the fade out of the sound any more so that was another issue. The volume of the pedal is still very quiet and I have to turn my amp volume right up. The amp turned up without effect is loud. Orange vr trace reads 4.5 volts all along.
      Thanks for your help.

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    5. Sorted out. Used J175, Source and Gate on JFET Soldered together. 2N2222A for Q1. Pin 1 of IC to source and gate.
      Thanks

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    6. I agree with Marcin, I had to do some creative wiring to get it to work. Even with the J117, the pinout doesn't match the board. Works great though and sounds amazing. I love this site. I've built a lot off here and this is the first issue I've had.

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  5. Base on my last post there are no mistake on PCB. I use J177 and it has diferent pins like J117.

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  6. Is it possible to replace the j117 with IRF9630 ?

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    1. I'm not familiar with the IRF9630. Compare the data sheets online.

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  7. I replacing the transistors

    Q1 - 2N222A
    Q2 - 2SJ117

    Work well?

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  8. Replies
    1. I don't believe so. I've check it to the schematic several times and everything checks out.

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    2. Thank you very much fod this pcb and other work, You do a great job. :)

      I would like catalinbread RAH and crunch box

      https://www.youtube.com/watch?v=S6-u-VmKBnM

      https://www.youtube.com/watch?v=yTNBOWrLEUY

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  9. The pcb is correct, i build mine with J177 for noise gate section, i replace with J175 but doesn't work well. so i back to original J177 and my problem is gone :). The noise gate is great, all noises is reduce perfectly but my problem is it's sound click every i start to picking guitar string. Any advice? Thank's :)

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    1. No idea why you'd be getting that click. You might want to ask some of the pedal gurus on your pedal forum of choice.

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  10. The transistor should be a J177 not J117. It was an expensive mistake for me but never mind, I freakin love this site.

    The schematic here says J177. http://radiostorage.net/uploads/Image/schemes/effectpr/morpheus-g2d-scheme.jpg

    I bought some FQP3P50s, (J117 equivalent) and then when I was building the pinout didn't match the layout, I then checked the J117 pinout and that also didn't match so I had to do some funk. Anyways, it didnt work, I've probed it and I'm getting signal all the way to the PNP tranny so I've ordered a J177 and hoping that will fix it.

    Please do the fOXX Phaser as used by Brian May in the 70s.. Best sounding phaser I've used and my layout is shocking!! http://www.diystompboxes.com/smfforum/index.php?topic=110315.0

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  11. In case someone wants to build this and runs into problems.

    I built this a while ago and I did have some problems.
    Here's how I fixed them:
    - J177 for Q2.
    - Used a jumper on the solder side and connected the S/source of the J177 to pin 1 of the TL072 on the right.

    That fixed all my problems and now the pedal works well and sounds really good.

    Thanks!

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  13. I should have no problem substituting the 1000uf for a 470uf, correct?

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    1. Yeah. The original power filtering is a bit excessive.

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  14. I just finished my build, and although it does work it's got extreme low volume. Does anyone know what could case that? It's really faint.

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