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, December 23, 2016

Earthquaker Devices Hoof Reaper

It's the last Fuzz Friday before Christmas, and as a present to you here's 3 effects in one–the Earthquaker Hoof Reaper. It combines the Tone Reaper fuzz, the Green Ringer (Tentacle) octave, and Hoof fuzz in one package. For the germanium transistors, originals use an AC176 in the Reaper side and 1N1308s in the Hoof, but others can (and have) been used, so socket and experiment. Also, it seems the originals have the Octave first from the input jack. So despite the footswitch arrangement, the signal goes, Input jack > Octave > Reaper > Hoof > Output Jack. Pots are all board mounted and it should fit in a 1590BB.





Hope everyone has a great holiday!

25 comments:

  1. Wow! What a great gift! That's quite a layout, going to have try this out when I get a chance, just because. Thanks for all these great layouts, my project list is getting huge.

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  2. felices fiestas y gracias por todo!!!!

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  3. Happy Fuzzmas!!! And thanks for all the layouts! Keep on rockin' dude!!

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  4. muchas gracias por todo lo que compartis!! feliz navidad1

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  5. Where's the best place to acquire some of this "perf" you speak of? Salvage yard? Do I have to rob the embassy? Seriously though, I get my vero from tippikat on ebay, but have no idea where to score some good perf.

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    1. eBay is ok too. I bought a bunch of super cheap 'prototype board' from there - it's bad, but I mean... if you don't ever plan on changing part values it's generally pretty good. The traces wouldn't hold up with any serious heating.

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  6. MPSA19 is a typo? ...as the tone reaper has a MPSA18

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  7. Verified. This thing is brilliant. It stacks very well.
    THANKS santa!

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  8. What effect does the 100pf cap have on the tone of the octave pedal on its own? Compared to the green ringer, I think that's the only difference. What does it do?

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    1. I guess it's some form of low pass filter... Though 100pf is pretty low for that. If you built it without it I doubt you'd really notice its absence.

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  9. The germanium transistors, what model are they? Bc108?

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    1. I listed the original germanium transistors in the post above. BC108 is a silicon transistor btw.

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    2. It's true !, sorry I didn't see the post well, Thanks

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  10. Finally, I've managed to finish this one

    Thank you for the layout, you did a freaking great job

    Gutshots fired: https://pp.vk.me/c626120/v626120952/514c9/NF3jPIbt7yg.jpg

    I plan to make octave section switchable w a relay and foot controller, since there s not enough space in this enclosure for 3rd button

    cheers

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  11. Hello, the 3dpdt switches connect each one in a normal way or you have to connect them between them ????

    Gacias

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    1. Input jack goes to the Octave 3PDT in, then run the Octave 3PDT out to the Reaper 3PDT in, then run the Reaper 3PDT out to the Hoof 3PDT in, and the Hoof 3PDT out to the output jack.

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    2. Many thanks, 9v and ground power should also go to each section of the pedal, that is to say every 3dpd switch?
      Sorry for my ignorance.
      Thank you very much

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    3. For voltage and ground follow the offboard wiring diagram in the General Layout Notes tab.

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    4. Thank you very much for everything, very kind and sorry for taking time to respond

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    5. Hi, sorry for the inconvenience, he mounted the circuit and it does not work for me, doubt that I have a diode mode in the leds, I think it's in the polarity, you could orient me please, I beg you patience with my ignorance.
      Thanks and greetings

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    6. Hello, solved and working, incredible sound, thank you for your patience and help.
      regards

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