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.

Wednesday, April 15, 2015

Zvex Wooly Mammoth

Looking for a Wooly Mammoth but don't want a sideways 1590b on your pedalboard? Here's the Zvex bass fuzz laid out for board-mounted right angle PCB pots.




17 comments:

  1. Can anyone explain routing to led, jacks and switches? This is my first pcb build and I'm having trouble

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    1. There are a couple ways, but here's a good starting point:

      http://www.beavisaudio.com/techpages/StompboxWiring/StompboxWiring.gif

      Also check out the Tagboard Effects blog post on the subject.

      http://tagboardeffects.blogspot.com/2012/02/offboard-wiring.html

      As always, Google is your friend.

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  2. Can I use 1k pot and 220uf cap for the pinch setting?

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    Replies
    1. Cap might be ok, but I wouldn't use a 1k pot for Pinch. It's supposed to be 500k. Using a 1k would basically act as a switch.

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  3. What if i use a 10k pot for wool and a 1M pot for pinch? I've only these at home and i'm too lazy to buy new ones

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    Replies
    1. You can try it. You can also try soldering in some resistors in parallel to lower the pot values. A 1M resistor from lug 1 to 3 on a 1M pot makes it 500k. For the 10k pot try something around 2.5k

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  4. hello, comparing to other layouts, i see with put a diode (normal) and 1M resistence, and a third 100uF cap. Did you just followed a different schematic or was it a mod you decided to include?
    Thanks

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    Replies
    1. The 1M resistor is a pulldown resistor so a 3PDT footswitch won't pop and the diode and 100µ cap are for polarity protection and power filtering.

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    2. Thanks. Witchs pots will cause problems if I use log instead of linear?
      Thank you

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  5. Does anyone has any experience playing this with bass?
    I use this with bass, it gives me lots of sustain, but the attack has an envelope to it that I can't dial out. Maybe by lowering the gain in the pedal? (I already have pinch and wool turned all the way down).

    Thanks

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  6. Hi, should the pots be mounted from the solder side of the board? I'm new to this and unsure.

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