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, August 18, 2015

Paul Cochrane's Timmy

Often cloned without giving credit to where credit is due (cough*lovepedal*cough), the Timmy is one of the most sought after overdrives on the market today. And really, if you can afford one, just buy one from Paul C. He's a great guy. For those of you who can't, here's my layout.



34 comments:

  1. Hi there,I'am not a noob guy in building guitar pedals,but it's a firs time I see component,named DIP 1,2.Can you please explain me what is this,I'm going to verify this one.
    Best regards,Daniel

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    1. That's just a switch to engage D5 and/or D6. More info here:
      https://en.wikipedia.org/wiki/DIP_switch

      You could use a DPDT toggle instead. Wire the 2 pads for the DIP switch that connect to Drive 3 to lugs 2 and 4 (refer to the General Layout Notes page for lug numbering), and the pads that go to D5 and 6 to lugs 1 and 3. I think there are versions from Paul C. that are wired this way. Hope that helps!

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    2. Do you have one photo of this kind of DIP,12 ?

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    3. Is this it ?

      https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTum0UB1k20Fbt_grXnJj_zJutdmIXP2Xo3occKGkIOGzkyXq5F

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  2. I'm mid-build on this one and don't see the output. Is it volume 2 to out?

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  3. Thanks. I hope to verify this one in the next couple of days.

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  4. Verified !! ... great pedal. Rock n roll.

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  5. I just boxed this timmy. Thanks for the layout.

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  6. https://www.instagram.com/p/BFzqCcQpsBi/?taken-by=lightsoundgeometry&hl=en

    getting ready to test mine tonight, so far so good

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    1. got it!!! was a loose ground connection and now it sounds awesome. holy chit mane !

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  7. JRC4559 would be ok for this one?

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    1. Yep. That's what's used in the original. I used a 4558 when I built this though. Worked fine.

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  8. How could one wire a 3 way switch to perform the clipping tasks of the later versions? Thanks for so many great layouts btw!

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    1. Thanks! Check out the diode switching in lvlark's vero layout.

      http://4.bp.blogspot.com/-X-FXRN3YBpk/T32Ps68_v4I/AAAAAAAABL4/WvCN-7Vx3Mk/s1600/Paul+Cochrane+Timmy.png

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  9. The scheme of the Lovepedal OD11 is almost a copy of this pedal, know you if I can use the same board? Maybe I have to ask less and try more... jaja

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    1. Explore the site a bit more. There are actually 2 layouts for the Lovepedal version.

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  10. Hi !
    sorry but can't find the layout in the data base … Could you please tell me where is the folder ?

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  11. I dont have a 510k resistor,would 470k sub ok?

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  12. can i use this op Amp? = LM1458CN

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  13. i bought a Pot says 50K,but i measured it in actual, value is only 37K,can i still use it?

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    1. Pots can have pretty high tolerances. It's probably fine.

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  14. Hi Effects Layouts, i used LM1458CN Op Amp and the 37Kohm (actual measured Pot),and used your PCB layout.and tested sounds great transparent Overdrive,Thanks to Paul C. and to you Effects layout..this is VERIFIED!

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  16. About the d5 and d6 on the pad per hole layout..a connection is missing :)

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  17. Built this the gain pot is not working.and also the switch for the diode.i cant hear any difference(i used toggle dpdt switch and used only 4 poles) please advice 😢

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    1. Still waiting for advice after a year has passed 😅😅😅

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    2. Post pics of your build, it helps a lot.Maybe is a bad solder joint somewhere

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  18. Is there a way to wire the dipswitch slots in a way that I don't need to use a dipswitch and the pedal stays in the equivalent of the middle position toggle of the version 3.

    Another question, If I want to reemplace the dipswitch with a 3 position toggle, how i have to wire ir in this board?

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