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, March 10, 2017

DeadAstronaut Space Patrol Fuzz

For Fuzz Friday here's DeadAstronaut's take on the good ol' Big Muff. It features a toggle switch (Fat/Thin) that changes the output capacitor from the first stage, and a rotary switch (mode) that changes the sound type. In the designer's own words:

It's basically a classic big muff with fat/thin switching, plus 3 other modes for synthy, buzzy, octavey, duck and swell type sounds...by switching diodes and collector resistors. Rather  like a bias control on a fuzz face...but for both collectors.

Here's the schematic for reference.


19 comments:

  1. Nice!! Thx for the great layouts man!!
    Can you pretty please, do the Abductor/Abductor II delay layout?!?! That'd ne awesome!

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  2. Hi, Just to let you know I have built this and can say it is verified.

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  3. Share the scheme. I can not find anywhere.

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  4. The link to the schematic is fallen. Can you upload it again? Thx.

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    1. It's not in my dropbox. I linked to what DeadAstronaut had posted over on DIYSB, but it looks like he's moved it. Sorry!

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    2. hi can i get the schematic diagram of this one? ASAP PLEASE becoz its my project thanks

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    3. Schematic link above has been updated and is working.

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  5. hi can i change the 2.2m ohms 5 band to 4 band ?

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    1. As long as it's the correct value, the bands shouldn't matter too much.

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    2. i can use toogle switch 9 pins? or i should stay for SPDT and 3P4T rotary switch?

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    3. Can't do it with a toggle. Stick with what's indicated in the layout.

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  6. how about the 1uf capacitor it has no polarity i'm a little bit confused

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  7. There is sw2 9-11 & sw2 12 shuold be replaced, according schem! I changed 10k from Q4 collector to 27k, for more volume.

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  8. does anyone have a graphic for the switch? I see that 9-11 and 12 should be reversed as per shematic. do you connect a and b together and then 9-11 pins soldered together? and 5/6 also? thanks anyone for help...peace

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