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 11, 2018

Menatone Pig

Came across this one and it's an interesting JFET-based OD with active bass and treble controls. It's apparently based on a late-60s Marshall 200 amp. Drew up the schematic for reference.


I believe the originals run off a 9v supply, but newer ones have a voltage doubler internally to run off 18v. Since I know there are different preferences when it comes to those, so I left it off the board. I realized after I drew all this up I probably should have included trimmers for biasing the JFETs, so you may want to socket the resistors going from voltage to the drain of Q1, Q3, and Q4-6. Though if you're using in-spec J201s (I highly suggest the SMD version and conversion boards) the stock values will probably work fine. YMMV Pots are board mounted and will fit nicely in a 125B.



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11 comments:

  1. ZZOYDDecember 13, 2018 at 3:56 AM

    verified! I had to change the resistors bias for changing voltage to the drain of Q1, Q3, and Q4-6. Sound - like a dirty big pig. I have made it, becouse next year - pig's year!

    ReplyDelete
  2. ZZOYDDecember 13, 2018 at 3:58 AM

    Thank you for every your layout!

    ReplyDelete
    Replies
    1. Effects LayoutsDecember 13, 2018 at 9:03 AM

      Thanks for verifying!

      Delete
    2. ZZOYDDecember 13, 2018 at 9:20 AM

      Thanks tou for your great job! I started to make pedals one year ago, & made more than 70 ones! And every time i say yourself: enough, dude! But you do some else, again &again, & i cant stop =)

      Delete
    3. AnonymousDecember 13, 2018 at 10:09 AM

      I'm with you, Vit! Just when I think I have enough Fuzz pedals, another Friday comes and David posts something totally awesome, like the Clusterfuzz.

      By the way... cool tunes on your Soundcloud! I'll have to brush up on some language here, though. Is that Ukranian or Russian in "Girl With A Book in a bag..."?

      Delete
    4. ZZOYDDecember 13, 2018 at 2:41 PM

      i saw Clusterfuzz too... I'm thinking...=)

      Delete
  3. ZZOYDDecember 13, 2018 at 2:16 PM

    yes,Ukrainian, I'm from Kiev. in that song i used "nurse quacky" for the bass, it was cool & funky!Wampler panteon & "DAM Drag N Fly" on solo in diferent chanals.

    ReplyDelete
    Replies
    1. AnonymousDecember 13, 2018 at 3:50 PM

      Nurse Quacky is one that I just etched a board for and the Panteon is up in my next batch (since you've verified... Дякую).

      Delete
    2. ZZOYDDecember 13, 2018 at 4:11 PM

      Будь ласка! Freedman - very good thing for solos!How to find you on the facebook?I'm Виталий Кошуба

      Delete
    3. AnonymousDecember 14, 2018 at 8:38 PM

      FB request sent, Vit. I'm Jared. I don't use it much, but it's a good way to send messages.

      And... yes! I've built the Freedman BE-OD. It is one of my favorites.

      Delete
    4. ZZOYDDecember 15, 2018 at 3:29 AM

      Exelent! Yesterday i made pork loin, iwill wright about there https://effectslayouts.blogspot.com/2018/05/way-huge-pork-loin.html#comment-form

      Delete

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