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Friday, October 4, 2019

EarthQuaker Devices Life Pedal

For Fuzz Friday here's the coolest Green Ringer + Rat pedal around! (To be fair, it's an awesome combo) The Green Ringer is on a JFET blend and the Rat section is pretty standard. There's also a fairly generic MOSFET boost on board as well, similar to a SHO or Black Eye. This should all fit nicely in a 1590BB with board mounted pots.





As requested, here's the schematic:



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67 comments:

  1. FernandoOctober 4, 2019 at 10:39 AM

    What is the value for the Octave pot? Thanks and keep up with the amazing work!

    ReplyDelete
  2. sclemmerOctober 4, 2019 at 7:03 PM

    Any substitute for PF5102? J201 maybe?

    ReplyDelete
  3. johnkOctober 6, 2019 at 1:42 AM

    it looks like one 1N4148 is missing for the asymmetrical clipping circuit. there's supposed to be 5 of them.

    ReplyDelete
  4. YappiToochOctober 6, 2019 at 4:50 AM

    there are two 1n4148 and red led for the asymmetrical clipping

    ReplyDelete
    Replies
    1. jon qJanuary 11, 2020 at 8:08 AM

      Does the LED color matter?

      Delete
    2. tertiumsquidJanuary 14, 2020 at 12:41 AM

      Different LED's have different voltage drops which will sound different. Red will be a ~1.8v drop vs blue around 3.3v. If you don't have red, yellow or green will probably sound the same, or just experiment.

      Delete
  5. johnkOctober 7, 2019 at 2:37 AM

    yeah, i just saw that.

    ReplyDelete
  6. MehdiOctober 7, 2019 at 8:35 AM

    hi, where can i file a requeste for the earthquaker grand orbiter?

    ReplyDelete
  7. johnkOctober 7, 2019 at 5:07 PM

    i just finished building it. it works perfect and sounds awesome so you can VERIFY it.

    ReplyDelete
  8. Allan fingerstyleOctober 8, 2019 at 4:26 AM

    finished building last night and sounded amazing to my ears ... one friend's request? ibanez nb10 noise booster 🙏

    ReplyDelete
  9. johnkOctober 8, 2019 at 5:39 AM

    my completed build with relayed bypasses: http://johnkvintageguitars.homestead.com/Effects/Fuzz-ODs/LifePedal/Life-02.jpg: http://johnkvintageguitars.homestead.com/Effects/Fuzz-ODs/LifePedal/Life-01.jpg

    http://johnkvintageguitars.homestead.com/Effects/Fuzz-ODs/LifePedal/Life-02.jpg

    ReplyDelete
  10. David BrownOctober 8, 2019 at 9:50 AM

    This circuit is based on the Proco Rat Distortion ... The difference is that this pedal has extra functions ...

    ReplyDelete
  11. MiquelOctober 8, 2019 at 3:00 PM

    Any replacement of the PF5102.

    In my area there is not.
    J201-j112 Maybe??

    ReplyDelete
  12. Tim_WmuOctober 10, 2019 at 9:35 PM

    Are D1 and D2 flipped?

    ReplyDelete
    Replies
    1. johnkOctober 10, 2019 at 9:44 PM

      This comment has been removed by the author.

      Delete
    2. HumanOctober 11, 2019 at 10:43 AM

      Yep. Green Ringer and EQD Tentacle has the polarity switched!

      Delete
    3. Effects LayoutsOctober 12, 2019 at 10:23 PM

      Yeah, I thought that when I was drawing up but apparently that's as far as my brain went. Haha Will fix.

      Delete
  13. johnkOctober 10, 2019 at 9:48 PM

    according to tjhe green ringer schematic that i've seen, it looks like they are.

    ReplyDelete
  14. kikimora1October 12, 2019 at 5:14 AM

    HI!
    What footswitch are used? How are they connected?

    ReplyDelete
    Replies
    1. Effects LayoutsOctober 12, 2019 at 4:04 PM

      You use 2, 3PDT footswitches and you connect them like you normally would (seen General Layout Notes tab). One footswitch connects to the Dist. In/Dist. Out pads, and the other to the Boost In/Boost Out pads.

      Delete
    2. The AplikatorOctober 12, 2019 at 11:52 PM

      This comment has been removed by the author.

      Delete
    3. The AplikatorOctober 12, 2019 at 11:52 PM

      Are the In/Out jacks are shared for both 3pdt switches?

      Delete
    4. YappiToochOctober 13, 2019 at 4:44 AM

      In -> Dist. switch -> Boost switch -> Out

      Delete
  15. Mark HammerOctober 12, 2019 at 1:38 PM

    The basic Green Ringer circuit works better with a little more "push" as the front end. That can be provided by running a resistor/cap combination in parallel with the 2k2 resistor labelled R8. Consider use of a 1k resistor and 10uf electrolytic cap, negative side going to ground.

    ReplyDelete
    Replies
    1. Mark HammerOctober 13, 2019 at 12:51 PM

      I'll also add that, since the octaver input stage doubles the frequency of everything, it's not clear why the Rat section really needs the R18/C12 network to goose the gain of content above 1500hz. Users may find less need to be brutal with the Filter control if they either omitted that RC network or perhaps replaced it with 330R and 1uf. That would provide proportionately more gain for content above around 500hz instead of the searing gain for higher-frequency content that a stock Rat provides.

      Delete
  16. MiquelOctober 18, 2019 at 4:03 AM


    It is possible to reduce pcb for 1590b, sacrificing the potentiometer line

    ReplyDelete
  17. MiquelOctober 18, 2019 at 4:05 AM

    By the way, mine is finished, and is excellent! Sounds dark and big, the sustain is perfect

    ReplyDelete
  18. ArielOctober 23, 2019 at 5:44 AM

    Hello! I finished the circuit a few days ago and it's awesome how it sounds! Excellent work!
    How can the spdt be changed to a rotary switch? Thanks and regards!

    ReplyDelete
  19. Dr JonesOctober 31, 2019 at 5:24 PM

    I've noticed that all the green ringer/ tentacle schematics have the film cap values of 47nf, while the caps in this schematic are 100nf. Was this from the pedalpcb schematic or traced? Also all the copy says its supposed to be the Shin-ei octave fuzz into a rat +boost. Is that all hot air and its just a tentacle? or does it really matter? I'ms sure this layout sounds awesome, I'm more curious than anything.

    ReplyDelete
    Replies
    1. Effects LayoutsNovember 1, 2019 at 9:29 AM

      It's from the PedalPCB trace, so I haven't looked at the guts in person, but from pics I don't see how it could be either of the Shin-Ei fuzzes. There are too many components for the FY-2, and not enough for the FY-6. I'm guessing the reason for the 100nF caps in place of the 47nF is to allow more bass through or they just had way more 100nF caps on hand than 47nF. lol

      Delete
  20. Chris915November 6, 2019 at 8:24 AM

    On the IC pin 2 - 6 .. schenmatic says 100pf. on the lay out its 100nf.
    whats the correct value? TiA

    ReplyDelete
    Replies
    1. Effects LayoutsNovember 6, 2019 at 9:11 AM

      Are you referring to C11? It's 100pF in both the schem and the layout...

      Delete
  21. Chris915November 8, 2019 at 5:37 AM

    Thanks! Will use pf. But
    Most definitely,pf on schematic. nf on layout.

    ReplyDelete
    Replies
    1. Effects LayoutsNovember 8, 2019 at 9:09 AM

      Just so there's no confusion

      https://i.postimg.cc/YCZdLy3w/Annotation-2019-11-08-090822.png

      Delete
  22. SynesthesiaNovember 10, 2019 at 3:26 PM

    Works amazing!
    Some replaced I used and worked well:

    PF5102 = 2N5457
    2N5089 = 2N5088
    1N60A = 1N60P

    Hope it could help!

    Please do a Fortin zuul layout!

    ReplyDelete
    Replies
    1. YappiToochNovember 11, 2019 at 12:46 PM

      So, I used 2N5458 instead Q5 PF5102 and something marked as J201 instead Q1 PF5102.
      It sounds awesO)))me

      Delete
  23. SynesthesiaNovember 10, 2019 at 9:14 PM

    The clipping switch at the middle is op amp clipping in the original?

    ReplyDelete
  24. KrisRockNovember 21, 2019 at 8:28 AM

    Are D1 and D2 specific germanium diodes?

    ReplyDelete
    Replies
    1. Effects LayoutsNovember 21, 2019 at 10:30 AM

      1N34As should work fine. Heck, even 1N4148 silcons will work.

      Delete
  25. UnknownJanuary 13, 2020 at 3:15 AM

    I know this thread is a little old. Though, I was wondering if anyone has a link for a PF5012?
    Also in the schematic, where is the net label "VA" connected?

    Kind regards,
    Jack.

    ReplyDelete
  26. Krave278January 13, 2020 at 12:54 PM

    Hello everyone! I just finished building it. As far as I understand order of connection is following: RAT connected befor Boost. Is it correct?
    Thank you!

    ReplyDelete
  27. UnknownJanuary 25, 2020 at 5:55 PM

    Hi Guys,
    Jack here again.
    Just finished a PCB build for this and it sounds incredibly close to the original! very pleased, or rather my friends will be:

    https://www.4shared.com/photo/wGR393Q1iq/1__1_.html
    https://www.4shared.com/photo/_l2PTANHea/2_online.html
    https://www.4shared.com/photo/ZeSFe0u3ea/3_online.html
    https://www.4shared.com/photo/OSMkRMpHea/4_online.html
    https://www.4shared.com/photo/AcRFN3eWiq/5_online.html
    https://www.4shared.com/photo/BS7NR7gXiq/6_online.html
    https://www.4shared.com/photo/Us_Dmuu5iq/7_online.html
    https://www.4shared.com/photo/VLAeb_TMiq/8_online.html

    Thanks again to everyone :)

    ReplyDelete
    Replies
    1. UnknownJanuary 25, 2020 at 6:00 PM

      Edit: Here's a better link that isn't so compressed (sorry).

      https://ibb.co/hB9CNv3
      https://ibb.co/bBSs8rC
      https://ibb.co/LJbRTDG
      https://ibb.co/THPssD9
      https://ibb.co/p14Y1cg
      https://ibb.co/GvQssXc
      https://ibb.co/bJhfxjX
      https://ibb.co/7vgXZr2

      Delete
  28. MiquelFebruary 8, 2020 at 4:44 AM

    Any 2n5057 substitute???

    ReplyDelete
    Replies
    1. KrisRockFebruary 23, 2020 at 1:31 PM

      I know it's probably too late for answear but I used 2n3906 and everything works fine

      Delete
  29. 40watt FarmhouseApril 28, 2020 at 7:18 AM

    2n5087 is pnp. What is the purpose of throwing a pnp in between two npn trannies?
    There doesn't appear to be any negative voltage on the base...

    ReplyDelete
    Replies
    1. 40watt FarmhouseApril 28, 2020 at 7:26 AM

      I've never looked at an octave circuit before. I suppose that's a standard way to produce the octave effect and I'm just too green.

      Delete
    2. HurricaneHordakMay 16, 2020 at 6:02 AM

      Green like a ringer? ^^

      Delete
  30. bibiMay 4, 2020 at 2:25 PM

    hello someone know how we can add the input for an expression pedal to control the octave?
    franck

    ReplyDelete
    Replies
    1. Quinn301April 3, 2021 at 10:33 AM

      Add wires from lug 2 and 3 of the octave to a stero jack I believe..there's a video on YouTube of someone adding this to their aftermath pedal

      Delete
  31. SludgeratOctober 13, 2020 at 9:02 AM

    Didnt life pedal add ruetz mod for rat? Or maybe that was just the limited version? Have not owned one but plan to use octave part as bypassable for a rat

    ReplyDelete
  32. MassatonyApril 5, 2022 at 8:30 AM

    This comment has been removed by the author.

    ReplyDelete
  33. MassatonyApril 6, 2022 at 12:29 AM

    Couldn't get it to work untiL I replaced the LM308 with a OP07... then it blitzed. If your using 2N5457 be mindful of the different pinout.
    Thanks once again.

    ReplyDelete
  34. SkajaquadaFebruary 4, 2024 at 5:21 PM

    Hey man, I built this, and it works great. However, the drilling template you have for it is reversed...

    ReplyDelete
  35. Josedavid AlvarezOctober 7, 2024 at 4:55 PM

    I'm a newbie at this. Is the big 1uf capacitor on the right side ceramic or polyester?

    ReplyDelete