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.

Friday, November 18, 2016

BearFoot FX Candy Apple Fuzz

For Fuzz Friday, here's the BearFoot FX Candy Apple Fuzz. It's a unique silicon/germanium hybrid designed by Bjorn and it rips. Originals use 2N1308 NPN germanium transistors, but others can be used. Pots are all board mounted and it will fit nicely in a 1590B. Here's the schematic for reference.


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8 comments:

  1. plushNovember 18, 2016 at 11:57 AM

    Awesome! Thanks!
    Btw, you can replace 2n5952 with j201, it will alter the tone a little bit, but not too much.

    ReplyDelete
  2. johnkNovember 22, 2016 at 4:36 PM

    i built it and it sounds great so you can verify it.

    ReplyDelete
  3. plushDecember 6, 2016 at 9:45 AM

    Yay! Gutshot: https://vk.cc/5VYz57
    I've tried it with 1n1308 and MP35. MP35 sound more pleasant to my ear.

    TY again!

    ReplyDelete
  4. DanApril 6, 2017 at 3:55 AM

    This comment has been removed by the author.

    ReplyDelete
  5. DanApril 6, 2017 at 3:56 AM

    Hi, I've noticed that in this schematic (http://tagboardeffects.blogspot.md/search?q=candy+apple) there's also a 1k resistor that goes from 22uf to Q4, like the one that goes from another 22uf to Q3. I's not a huge difference, but I like it more with that 1k resistor, it brighten up the sound a little bit and make it a bit more precise.

    ReplyDelete
  6. AndersApril 10, 2020 at 5:01 AM

    Hi!

    Ive built the CAF on this pcb but I can't get the octave thing to work. I couldn't find the 2n3108's so I tried with a pair of 2n3904 and I have also tested with BC109/8. I have sound at the output but when I turn the nature knob to one side the sound disapear. I suspect there is something wrong with the Q4. When I measure the voltages i get these values.
    No sound, nature at endpoint
    Q3 C – 9,4v, B – 0,3v, E – 0,1v
    Q4 C – 9,4v, B – 0,2v, E – 0v

    Sound, nature at other end point
    Q3 C – 4,0v, B – 2.5v, E – 1.8v
    Q4 C – 4.0v, B – 0v, E – 1.8v

    Or maybe it's Q2 thats not properly set up?
    Q2 C – 7.1v, B – 2.8v, E – 2.3v

    Does anyone have a clue? Do I maybe have to rebias the circuit becase i have used silicone transistors instead of germanium? Without the transistors Q3/4 I have the same signal on both sides of the nature pot.

    Anders

    ReplyDelete
  7. AndersApril 29, 2020 at 4:29 PM

    The schematic for this layout is incorrect and therefore it does not work properly as the original CAF. Chek out Freestompboxes.

    ReplyDelete

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