Pages

▼

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. 




at

43 comments:

  1. GuilhermeApril 13, 2015 at 2:32 PM

    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!

    ReplyDelete
    Replies
    1. dtgehringApril 13, 2015 at 2:34 PM

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

      Delete
  2. GuilhermeApril 13, 2015 at 7:55 PM

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

    ReplyDelete
  3. VahiDApril 16, 2015 at 10:58 AM

    hi can use other transistor for Q2 >

    ReplyDelete
    Replies
    1. dtgehringApril 16, 2015 at 11:13 AM

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

      Delete
  4. UnknownApril 19, 2015 at 1:16 PM

    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

    ReplyDelete
    Replies
    1. dtgehringApril 22, 2015 at 9:57 AM

      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

      Delete
    2. crocadilliousApril 24, 2015 at 3:58 PM

      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?

      Delete
    3. dtgehringApril 28, 2015 at 4:06 PM

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

      Delete
    4. crocadilliousApril 29, 2015 at 1:08 PM

      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.

      Delete
    5. crocadilliousMay 11, 2015 at 2:11 PM

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

      Delete
    6. Nick JamesMarch 14, 2016 at 7:47 PM

      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.

      Delete
  5. UnknownApril 30, 2015 at 6:25 PM

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

    ReplyDelete
  6. VahiDMay 22, 2015 at 6:37 AM

    Is it possible to replace the j117 with IRF9630 ?

    ReplyDelete
    Replies
    1. dtgehringMay 26, 2015 at 1:06 PM

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

      Delete
  7. CharlsRTJuly 13, 2015 at 1:54 PM

    I replacing the transistors

    Q1 - 2N222A
    Q2 - 2SJ117

    Work well?

    ReplyDelete
  8. CharlsRTJuly 13, 2015 at 2:04 PM

    the pcb has an error? is true?

    ReplyDelete
    Replies
    1. dtgehringJuly 13, 2015 at 2:09 PM

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

      Delete
    2. CharlsRTJuly 13, 2015 at 5:50 PM

      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

      Delete
  9. ZoedroonSeptember 5, 2015 at 6:01 AM

    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 :)

    ReplyDelete
    Replies
    1. dtgehringSeptember 8, 2015 at 11:29 AM

      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.

      Delete
  10. Nick JamesMarch 10, 2016 at 4:58 PM

    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

    ReplyDelete
  11. DewilAugust 4, 2016 at 10:15 AM

    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!

    ReplyDelete
  12. UnknownOctober 2, 2016 at 8:05 PM

    This comment has been removed by the author.

    ReplyDelete
  13. UnknownOctober 20, 2016 at 7:00 PM

    bump

    ?

    ReplyDelete
  14. UnknownNovember 17, 2016 at 1:35 PM

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

    ReplyDelete
    Replies
    1. Effects LayoutsNovember 17, 2016 at 1:37 PM

      Yeah. The original power filtering is a bit excessive.

      Delete
    2. UnknownNovember 20, 2016 at 10:11 PM

      This comment has been removed by the author.

      Delete
  15. RobotmeisterMarch 28, 2017 at 4:44 PM

    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.

    ReplyDelete
  16. UnknownApril 26, 2017 at 12:06 AM

    This comment has been removed by the author.

    ReplyDelete
  17. UnknownNovember 21, 2017 at 5:15 PM


    Is there an error in the pcb? and how similar it is in sound to the video in the video it sounds brutal.

    ReplyDelete
  18. PeterJanuary 1, 2018 at 4:57 AM

    I ordered 5, J177 smd jfets I will have to use veroboard with pins to attach the fet to the pcb, will I still have to run a jumper from IC2 pin 1 to source on the FET also someone above suggested s&g should be connected. Need clarification otherwise it's half verified.some conflicting advice mosfet -jfet etc...

    ReplyDelete
    Replies
    1. AlexSJanuary 26, 2018 at 8:29 PM

      I also used an smd J177 on a board, but didn't solder any legs together. Compare your layout to the schematic and see what hacks you may need to do as mentioned above.

      Delete
  19. MonjeApril 5, 2018 at 9:20 AM

    I had already done this circuit but at the time did not work well, when I read here that some colleagues had found a mistake, I decided to try again I found the error and the pedal is now destroying the ears of my neighbors. The correction is only of a resistance, I changed the drawing in Gimp, I send here the link in case someone needs it.
    https://www.4shared.com/folder/SYjZ44WL/_online.html

    ReplyDelete
    Replies
    1. UnknownApril 21, 2018 at 5:39 PM

      juan monje
      Does the circuit really work? I wanted to build it before but I did not understand the supposed error and to work that so good distortion is achieved by being a diy, talking about gain range of tones and noise gate...

      Delete
  20. UnknownApril 19, 2018 at 12:17 AM

    This comment has been removed by the author.

    ReplyDelete
  21. UnknownMay 15, 2018 at 8:40 PM

    Done and tested, Q2 using 2SJ74. Thanks, very nice website

    ReplyDelete
  22. DaveMarch 27, 2019 at 11:04 PM

    Built this and it does work but like a few other builders I also have extremely low volume from the pedal. Has anyone a fix. reason. clue or hint as to a remedy?

    ReplyDelete
    Replies
    1. PeterNovember 7, 2020 at 2:48 AM

      a jumper from S of the 177 to pin one of the opamp should fix that

      Delete
  23. UnknownFebruary 10, 2020 at 11:17 PM

    Pots gate doesn't worked, any suggest?

    ReplyDelete
    Replies
    1. PeterDecember 9, 2020 at 1:20 AM

      Ive built 3 of these now two on veroboard and one with the layout above one of the vero board builds the gate worked but not to well ,I have since found out that the 177 is prone to stop working due to ESD that came from a carbon copy delay that wont work in a diy forum if so there must be a way to fix the problem or add a small noise gate to the enclosure ,the distortion part sounds great.

      Delete
  24. Qubi136September 27, 2024 at 6:26 AM

    Where to allocate switch button?

    ReplyDelete