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.

Monday, August 7, 2017

JHS Angry Charlie

I've gotten a few requests to redo the MI Audio Crunch Box with board mounted pots. How is that relevant to the Angry Charlie you ask? Well, it's the same circuit. JHS added a cap in parallel with the existing cap coming off the Presence control to ground which tames some of the highs. So if you want the Crunch Box, just leave that cap out.


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69 comments:

  1. Taciano CanassaAugust 7, 2017 at 10:11 AM

    Yeah! This is very cool! Thanks man! You are the diyer evangelist!

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  2. BerkicauAugust 7, 2017 at 10:56 AM

    means adding a 100nF cap on crunch box will make it Angry Charlie. nice!

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    1. Joe TafanoMay 1, 2018 at 4:01 PM

      I did it and it works better for me now. Maybe 100n is a bit too much bacause now i have to turn my tone at about 3 (hour) (i turn presence trim to 0 - no presence); the overall tone is nice and my crunch box V3 is more usable with my jmp 2203 low input.
      I want to try a smaller cap there, maybe a 22 nano

      Delete
  3. WallaceAugust 7, 2017 at 4:52 PM

    Excellent work, congratulations to you

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  4. Ian H NelsonAugust 7, 2017 at 8:58 PM

    For anyone who's adventurous, I mashed up the Angry Charlie/Crunchbox with the original Guv'nor tonestack. Christened it the "Dirtbag". Will be verifying this tonight:

    http://imgur.com/a/T8NPi

    All tone pots are A10k, B100k for Vol/Gain.

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    Replies
    1. BerkicauAugust 8, 2017 at 9:00 AM

      How is it? Work?

      Delete
    2. Ian NAugust 9, 2017 at 11:01 PM

      It's verified. I really, really like this version. I find the tone stack to be a lot more flexible than the Angry Charlie/Crunch Box. I just kept wanting a bass control. Plus this one lets you scoop mids and get a pseudo-metal sound.

      There's not a TON of volume in the pedal, but it gets above unity even at minimum gain settings.

      The clipping LEDs light up quite nicely so it's a good candidate for mounting them in the enclosure.

      Delete
    3. BerkicauAugust 10, 2017 at 12:58 PM

      nice, I'll give it a shot
      thank you

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    4. BerkicauAugust 10, 2017 at 1:00 PM

      one more to clarify, is that 2.2uF above the IC a ceramic or elco?

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    5. Ian H NelsonAugust 10, 2017 at 2:47 PM

      I used a Tantalum cap there because I had it on hand. You can use that or an electro.

      Delete
    6. BerkicauAugust 10, 2017 at 4:05 PM

      Thank you. Good to go now

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    7. Didit RamadhanNovember 29, 2017 at 4:38 AM

      hi Ian, first of all, it works! but how to make the volume louder ? is it possible ? thx

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  5. ExtAugust 8, 2017 at 6:57 AM

    It works.

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  6. UnknownSeptember 15, 2017 at 3:43 AM

    Good morning. The only thing I do not understand is the mounting of the diodes ... I see that they are mounted in different verses, but what side of the diode is the cathode? Thank you. Joseph.

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    Replies
    1. Effects LayoutsSeptember 15, 2017 at 10:15 AM

      The flat side of the LED indicates the cathode. In this case the cathode of D1 is on the right, the cathode of D2 is on the left.

      Delete
    2. UnknownSeptember 15, 2017 at 1:19 PM

      Thanks for the clarification. in the coming days I will build it and let you know how to sing. joseph.

      Delete
  7. UnknownOctober 16, 2017 at 5:41 PM

    Man do I have the weirdest issue with this one and kinda stuck. I cn trace the signal amplified&all to pad 1 of the tone pot. Then it's just gone, it will not come through to the other pads..=). It's not the pot(checked and tried multiple), I've refloated everything and checked voltages all. After many etched boards, this is the weirdest...And most likely it's just something stupid I've missed. Still, this making my own pedals is an awesome way(most often) to quiet down my adhd brain so that I can sleep, thanks dude!

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    Replies
    1. Effects LayoutsOctober 17, 2017 at 9:43 AM

      Did you check for any shorts from pads 2-3 of the tone pot or pad 3 of the presence pot? My guess is something is shorting to ground and killing your signal.

      Delete
    2. UnknownOctober 17, 2017 at 1:30 PM

      Oh yes, right you are. I stayed away for a day and looked at it again...And there it was, right under ny nose, how could I miss it eventhough I checked the board after etching...A tiny copper bridge straight to ground.

      Delete
  8. Chipp404December 4, 2017 at 2:59 PM

    Thanks for your layouts! I built this one and it works but I have a few weird kinks maybe you could help me out with. The volume is super loud, even when fully CCW. I could add a trimpot but wondering if something else caused this. Also, I have gain and tone full CW but not a lot of gain and has high end loss. Any ideas? I used all high end components and no substitutions

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    1. Effects LayoutsDecember 4, 2017 at 4:04 PM

      Sounds like there's an issue with the volume pot. Is lug 1 connected to ground? Because you shouldn't have any volume when it's fully CCW. I'd check out DIYSB to see if anyone else has had a similar issue (check for threads on the MI Audio Crunch box since this is the same circuit).

      Delete
    2. Chipp404December 5, 2017 at 9:23 AM

      The problem was in the pot wiring, thanks for the suggestion. It's my first point to point build with board mounted pots.. I guess my eyes crossed at some point. Thanks for the quick response, I'll post pics of my build as soon as the graphics arrive

      Delete
  9. fredDecember 6, 2017 at 7:51 PM

    Hi, I have this one http://effectslayouts.blogspot.ca/2015/07/mi-audio-crunch-box.html how can I mod to JHS Angry Charlie?

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    Replies
    1. Effects LayoutsDecember 6, 2017 at 9:11 PM

      Add a 100nf cap from Presence 3 to ground.

      Delete
    2. fredDecember 6, 2017 at 9:17 PM

      thanks brother. lets try!

      Delete
    3. jandalesandsJuly 21, 2020 at 2:34 AM

      i built this pedal and it sounds awesome.. but there's an error in the tone part, lugs 1 and 2 should go to presence 3.. and tone 3 should go to led and 470 ohm resistor.. may i request to edit the layout master david.. thanks and more power.. from the philippines

      Delete
  10. UnknownDecember 9, 2017 at 6:50 AM

    Hi, I have serious doubts the 0.1uF added cap is correct. If you look at the Sweet Tea (a JHS double pedal which contains an Angry Charlie at one side), there is an SMD cap just on top of the IC, which must be the decoupling cap for the power supply of the IC. It is the only SMD component in that board and there are no 0.1uF caps close to the regular size 22nF tone caps. So I believe that "extra" 0.1 uF cap you see close to the opamp in the Angry Charlie guts pictures around the internet does only that: stability for the power supply of the IC. Unfortunately I didn't find any picture of a disassembled Angry Charlie to look at the other side of the board and confirm what I wrote, but I tried to add that cap in my clone pedal and that muffles the tone too much, compelling me to set the tone pots way too high to have an acceptable brightness.

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    1. GuilhermeJanuary 9, 2018 at 10:33 PM

      I think you're right. If I remember correctly from some JHS's I repaired in the past, the 100nF is in parallel with the 100uF from V+ to ground

      Delete
    2. UnknownMay 8, 2018 at 3:51 PM

      You are talking about a different 100 nano cap. The one from pres 3 to ground is right and works.

      Delete
  11. UnknownFebruary 1, 2018 at 6:31 AM

    Great sounding pedal!!! Even have been able to put it in 1590a case. Thanx for layout)

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  12. SkaybluesFebruary 7, 2018 at 3:27 PM


    with which tone pot could replace the C 10K since I can not get it anywhere, thanks!

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    Replies
    1. Effects LayoutsFebruary 7, 2018 at 4:12 PM

      Try a B10k

      Delete
    2. UnknownMarch 2, 2018 at 12:09 PM

      The Andy Timmons AT1 actually uses a linear ("B") 10k pot... So the Angry Charlie allegedly does the same, expect for the backwards wiring. By the way, I took off the C10k I used and put a B10k pot in my AT1 clone and it was a major improvement in terms of ease to adjust the treble.
      I believe the reverse logarithmic ("C") taper in the Angry Charlie schematic has always been just a guess/reminiscence of the Proco Rat schematic, reversed...

      Delete
  13. Leonardo Rosa February 14, 2018 at 10:10 PM

    Hello
    I did my circuit, but the sound that comes out is just a very sharp noise and when
    I increase or decrease the settings of the pots I have a variation on that noise.
    Do you have any suggestions?

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  14. UnknownMarch 11, 2018 at 5:24 PM

    Is there a veroboard for this please?

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  15. UnknownMarch 27, 2018 at 2:25 PM

    Hello, the sound is great, thanks for sharing! But I have a question about LEDs. It should flash when playing, right ? But nothing happens in my project with the LEDs. Input power 9 volts (checked), 9 voltz in pin 8 of CI (checked). CI Pin 7 power output 4 voltz, capacitor 2.2 Uf (checked) resistor 470 ohms(checked), Led D1 cathode on the right and D2 cathode on the left. Important, my CI is a LM833-N, i beliave its the same of LM833 and tone pot is a A10K. Thank you very much

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    Replies
    1. Effects LayoutsMarch 27, 2018 at 4:36 PM

      In this circuit the LEDs aren't necessarily meant to light up. They're being used a clipping diodes. So if it sounds good to you, don't worry about it.

      Delete
    2. UnknownMarch 27, 2018 at 5:26 PM

      Thanks!!

      Delete
  16. alexmanApril 15, 2018 at 1:15 PM

    Tone 1-2.3

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  17. UnknownMay 3, 2018 at 5:31 AM

    Hi what about putting another 22 n cap in parallel with the one from presence pin 1 to ground?

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    Replies
    1. Effects LayoutsMay 14, 2018 at 9:32 AM

      That would essentially make for a 44n cap there.

      Delete
  18. Joe TafanoMay 7, 2018 at 6:16 AM

    nobody?

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  19. UnknownMay 13, 2018 at 8:43 AM

    the led for clipping is not lighting that much.. only one led lights up, can somebody tell me whats wrong? tia

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    Replies
    1. Effects LayoutsMay 14, 2018 at 9:31 AM

      The LEDs are being used as clipping diodes, so they may not light up. It it sounds right, don't worry about it.

      Delete
  20. UnknownMay 30, 2018 at 11:26 AM

    I built this, but even with everything cranked all the way up on this pedal I can barely hear any sound. I have to turn my amp up super loud to be able to hear any sound coming through. The little bit of sound that is getting through sounds great, I just don't know why there is hardly any volume coming through. I have tried with multiple guitars and amps and get the same results. Any ideas on where I should start looking in the circuit for issues?

    ReplyDelete
    Replies
    1. Effects LayoutsMay 30, 2018 at 2:29 PM

      I suggest going through it with an audio probe to figure out where things are going wrong.

      https://www.diystompboxes.com/pedals/debug.html

      Delete
  21. GaboJune 3, 2018 at 1:44 AM

    Hello and thanks for this great contribution, I have a problem with the pedal, the sound comes out approximately 10 seconds then the sound is reduced and nothing comes out, what problem could it be?
    For a moment I was wrong in the positive negative poles in the DC, but then I corrected it and I appreciate this problem.

    ReplyDelete
  22. PauloJune 21, 2018 at 11:48 AM

    Olá boa tarde, como esse layout eu consigo montar um angry Charlie AT?

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    Replies
    1. UnknownJuly 19, 2018 at 11:37 PM

      Olá Paulo, quer um Angry AT pelo prazer de montar ou para economizar?TRabalho com componentes de primeira e parcelo em 12 iguais no ML, valor R$ 250,00 me chama no zap se interessar, 21-99358-8385

      Delete
  23. Pabloc82December 27, 2018 at 12:02 PM


    Hi, I did it and it works perfect, what I would like to change is the presence as it gets very serious when moving in a clockwise direction. Will I have to change one of the two 22n? which of the two?

    ReplyDelete
  24. Ramon HerverJanuary 31, 2019 at 6:26 PM

    Which of the 100nf caps I have to leave out to make the crunch box? The one next to the two 100uf or the one next to the 22nf?

    Greetings from Mexico

    ReplyDelete
  25. blacksunzeMarch 18, 2019 at 10:48 PM

    Can I use an Lm4558?

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  26. blacksunzeMarch 23, 2019 at 2:46 PM

    If I use 3mm led instead of 5mm? I think it's OK right?

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    Replies
    1. Effects LayoutsMarch 23, 2019 at 4:12 PM

      Yeah that’s fine. Color is more important than diameter

      Delete
    2. blacksunzeMarch 26, 2019 at 12:30 PM

      Really? Difference with 3mm green led? Thanks

      Delete
    3. Effects LayoutsMarch 26, 2019 at 1:17 PM

      Yeah, not all LEDs have the same forward voltage. Green LEDs will still clip, they'll just clipping differently than reds.

      Delete
  27. blacksunzeMarch 26, 2019 at 1:24 PM

    This comment has been removed by the author.

    ReplyDelete
  28. blacksunzeMarch 29, 2019 at 5:12 PM

    I built it, very good but don't you think that the volume is too high already from 7 o'clock, and the tone control cuts the high frequencies too much?

    ReplyDelete
  29. blacksunzeApril 2, 2019 at 2:20 PM

    Has anyone had problems with the tone pot? I always have to keep it at the max to get decent high freq.

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  30. Edgar CruzNovember 6, 2019 at 6:49 AM

    This comment has been removed by the author.

    ReplyDelete
  31. RadeDecember 30, 2019 at 1:19 PM

    why some circuits also include FET transistors in clipping section?!?

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  32. Ricco SeixasMarch 28, 2021 at 6:53 PM

    finished and working wonderfully !!! I used b2k for the tone, so I have a less dark sound in 12 hours. thanks again, with this are 72 layouts successfully assembled here on this site !!!

    ReplyDelete
  33. lord aldebaranJune 30, 2021 at 8:03 AM

    how to make 3pdt wiring in this schematic?

    ReplyDelete
  34. FernandoDecember 4, 2023 at 9:43 AM

    I built this one, amazing sound. link to watch:
    https://youtu.be/4-9nCM2Fnw4

    ReplyDelete

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