Tuesday 30 June 2020

Earthquaker Devices Hoof Reaper

With an added mod from Fuzzdog which took the octave control  from EQD Life Pedal so you can dial in the amount of octave up as you desire.
Schematic and info HERE




4 comments:

  1. I own this pedal, it was one of the first I ever purchased and I'm still tempted to build this for the octave control.

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  2. yo, can someone verify?

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  3. VERIFIED

    Built this week and it's a monster. A few minor errors on the layout though:

    1. The bottom leg of the 10k resistor in the Tone Reaper circuit (column 20) inserts on the 9v rail. It should insert on the ground rail. Using the layout board grid, you would move the leg from P20 to O20.

    2. Diodes are labeled wrong. Should be as follows:
    D1-D2: Germanium
    D3: 1N4148
    D4-D7: 3mm red LED's
    D8: 1N5187

    3. The low pass filter cap on the Tone Reaper circuit, column 22 with legs on row O and row Q, is listed at 47p. Original circuit is 100p. Probably doesn't make much difference.

    4. There's a 47p cap on the Octave circuit that looks lost, row 8. It's not on the original circuit and it it bridges the 9v rail and ground rail AA and AB. Not sure what it does or why it's there.

    Thanks for a great layout and happy building!

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    Replies
    1. WOW!
      Very cool.

      The layout is updated and TAGGED!

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