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.

Thursday, August 6, 2015

Wampler Triple Wreck

The Triple Wreck is a high gain distortion that some say sounds like a 5150 amp. It has a 3-band EQ and a switch to select between "Vintage" and "Modern" tones. There's also a built in boost section to take things over the top.

I've laid out the distortion section and the boost section as separate layouts in case someone wants to build it without the boost in a 1590B. The boost itself might be a nice little stand alone pedal and would easily fit in a 1590A. (The boost is a simple BJT-based circuit that drives a modified Big Muff tone stack. If you wanted to add a volume control to the boost circuit, just connect lug 3 of a 100k pot to lug 2 of the Cream pot, then ground lug 1 of the new Volume pot, with lug 2 to Out.)



Edit Aug. 20:
Got a request for this without the ground loop as there have been reports of noise in the circuit and that could be culprit. If you've already built it, try cutting some copper near the text on the PCB.






76 comments:

  1. Fucking awesome, man! I love this one!

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  2. I've been waiting for this!

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  3. why don't you build it and verify it?

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    Replies
    1. In the only way man!do it, dont wait to anybody, be the first!

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    2. i am doing some other project. i will do this as soon as i am done with that :)

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  4. Hi guys. Before building it I went through the schematic and this layout. I tried to visually verify if the layout is accurate.
    Here's the schematic: http://3.bp.blogspot.com/-NUlKC9gloDQ/TxL3rucGxdI/AAAAAAAAAjY/CWne3xV_0-k/s1600/wampler_triple_wreck.gif

    I noticed that in the schematic, C20 (capacitor that goes after pin 1 and before pin 6 of the TL072) is 0.001 which means it's 1nF. In this layout it's 10nF. I PM'd storyboardist about this in freestompboxes but I haven't got a reply yet. :) Everything else is accurate. ;)

    I'm halfway through building this and I'm excitedddd. :D Cheers.

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    1. Thanks for catching that! The layout has been updated with the right cap value. Should be good to go guys!

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    2. THERE'S ANOTHER ONEEEE.... That 1k resistor above D1, and D2 should be 47k. :)
      It's R10 in the schematic. :D

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    3. Oh yeah just an update. I got it to work. Nice gain and EQ. I still have some troubleshooting to do, my build is still kinda noisy (hum). I don't know if this is enough to verify it but as we all know, the circuit is exactly the same as the schem. :D

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    4. @Mon - is it a ground loop hum ??

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    5. No it's not. It's the hum/noise that comes when you turn up the gain. But mine is a bit worse. I noticed that two of my non-inverting inputs in the 074 are a bit low than what should be so most likely the problem's in there.

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  5. Hello!, The second image is a correct PCB?

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    1. Both images are the same, only the 2nd has the break in the ground loop that some complained was causing hum.

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  6. Hello.

    The Wampler Triple Wreck main borad is always said to benefit from a 18V power supply, can this layout be powered at 18V ? If so have you tried it ?

    Thanks

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    1. As long as your components are rated high enough for the extra voltage it should be fine. Only components you should have to worry about are the electrolytic caps. Those should at least be rated at 35v.

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  7. Fully verified! In the boost section, try other transistors, mpsa18 works much better, and is more similar to the original, I've been able to try it with the original.

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  8. I have made this one. Used 2nd layout pic. Effect have plenty of gain. Still I have some issues with volume and bass pot. I only have 100A or 100B pot for bass so the regulation is not smooth. Also I have noticed that in bypass mode my signal is slightly lower than distorted signal, no matter if 100kA pot is kranked open. But the effect produces extremely heavy ammount of gain. Have done couple of tests with different OP Amps. In my opinion it works slightly better on TL084 & TL082.

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  9. Hi! I have built it with MXR Micro Amp in one enclosure. When I use battery it works normaly, when I use power supplier (AC adaptor) it has huge volume drop :( Can anybody help me with that?

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  10. Hi there!
    Can anyone help with two issues plz?

    1-When I plug 9v source it starts normal, all controls are OK, but after a couple minutes the volume drops ~70% of normal! I have no idea what it could be.

    2-When the gain is full there is an annoying noise/hum, that's normal? I know that in the most of high gain pedals the max gain bring some noise, but acceptable. But in this case my build with max gain brings too much noise.

    Thanks and cheers from Brazil!

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    1. Looks like I've fixed the issue nº 1. The problem was the 10k that comes from 9v lead to 10uF. I changed to 15k and until now the problem is gone. I didn't boxed it yet so I hope when I do that the noise will become acceptable, fixing the issue nº 2.

      "Sorry, English is not my native language."

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    2. To solve the problem 2, try changing the value of the pot drive ... EX: If you are A100K A20K ..... try ........ usually resolves .....

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    3. We have the same problem with issue issue no.1. which resistor are you talking about? there are 2 10k resistors where that 10uf cap is situated. is it the left or the right?

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    4. he was talking about the R25 i supposed. based on schematic, from 9+ going to R24(47ohms). so it's the right side. correct me if i'm wrong.

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  11. Hi I'm going to build this one, ehis is a great site thank you so much! Do you have EHX Metal Muff? Will you do it too?

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  12. Can someone explain what does treble 1,treble 2,treble 3 mean.Do the numbers here refer to the three lugs of a potentiometer?

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    Replies
    1. Check out the General Layout Notes tab at the top of the page

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  13. Replies
    1. i have a question with the gain, i did everything in the layout, i even checked the schematics, with out the boost part yet, but does it really sound like an OD? ive checked the demos in the youtube, they all sound great, mine just lacks gain, what did i do wrong?

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    2. Hard / metal switch,no change the sound , someone has noticed?
      You know it can be ?

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  14. Perfect pedal. Fully verified. Thank you.

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    1. Is the boost section before or after the main circuit??

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  15. mine is even if it is all full volume the output is very low. if i turn bypass it is louder much louder.

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    1. I just ended up building it and I´m facing the same problem, has anyone solves this one??

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    2. how did you solve it please share

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    3. not solved. I was just correcting the phrase above

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    4. Most of time this issue become from some bad soldering, connection bridge or even wrong component values. Try to validate each component and connections and try again. This pedal have lots of volume and distortion.

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    5. Solved guys. The problema was a little short circuit.

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    6. I can assure it´s verified.
      You can see and hear in my homemade footage. I recorded it today as a token of gratitude to everyone here that helped in the success of this build.
      https://youtu.be/KZBchXIwhiA

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  16. Hey guys! I already did the Triple Wreck but I'm gonna do it a Microamp instead this Boost Section. My buddies told me that Boost section sucks! Greetings from Argentina!

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    1. Well, I liked the boost, it sounds fuzzy. But I liked fuzz pedals as well.

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  17. verified
    https://youtu.be/KZBchXIwhiA

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    1. mine seems to be lacking in distortion and gain, what seems to be the problem can you help me?

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    2. Hey Eugene, it could be cold solder joint!

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  18. Hi! I finally got it all assembled and running and it runs fine and is loud in the first few minutes and dramatically losses it's volume. There seems to be great deal of volume and gain loss and I can't figure out what I did wrong. Even when the gain is set to zero the volume of the guitar is lower than compared to the dry signal. Any thoughts on what I could have done wrong in this build?

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  19. It is a good pedal !
    I built two of those and it is Verified !

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  20. Thanks for the layout! I built the main pedal and the boost on the same board. Main effect works great but I'm having an issue with the boost...

    The sound from the boost is crackly and sounds pretty gated, like the signal is only coming through when I hit the guitar strings pretty hard. Any ideas?

    I'm getting 0.35 volts at the collector of the transistor.

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    1. Sounds like the transistor is misbiased. Make sure the 47k resistor going from the voltage rail to the collector is the right value or you may need to tweak that value.

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  21. Can I have the Gerber files for the boards? I tried using a proto-board but was unsuccessful.

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    1. Can't do Gerbers with DIYLC, sorry. You'd have to redraw it in a program like Eagle or DipTrace that can export Gerbers.

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  22. Hi, It caught my eye that the 1uf caps is marked as electrolytics on the layout. But they are marked as non polarized caps in the schematic. I think coupling caps normally would be non polarized as well. Im no expert, it just caught my eye. What is the correct type of cap?
    Best regards

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  23. Boost section goes right after main section or before? I mean is there a clean sound at the input of the boost or distorted already??

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    1. The boost goes before the main circuit. You could put it after, but apparently it doesn't sound very good after.

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  24. Hi, i've build this pedal without the boost section,and work perfectly, but with the volume pot to the max...
    My voltage at the 2 IC's are:
    TL072:
    1: 2,5
    2: 2,5
    3: 2,6
    4: 0
    5: 4,3
    6: 4,3
    7: 4,3
    8: 8,7

    Quad opamp:( I use LM324)
    1:4,3
    2: 4,4
    3: 4,3
    4: 8,7
    5: 4,3
    6: 4,3
    7: 4,3
    8: 4,3
    9: 4,3
    10: 4,3
    11: 4,3
    12: 4,3
    13: 4,3
    14: 5,1

    Thanks for repplies..! And you make an exellent work with your build..!

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    1. Hey bro, try to changes all 1uF elco to 1uF mkm/mylar. If you dont have that try 470nF it'll be work too. It changes volume drop issue

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    2. Thanks, i will test that and give you some news ..!!

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  25. Excellent project, there is the version with potentiometers mounted in pbc?

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  26. Awasome..this work. I like this sound of character... Thank u

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  27. just finised build last night, here's my video

    https://www.youtube.com/watch?v=Lz7HY2jFY4s

    btw, thanks for the layout,awesome *cheers*

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