madbeanpedals RainbowPuker Manual

RainbowPuker RainbowPuker
F
BIZZARE
X Type:
Build Level: Intermediate
Based On: EQD® Rainbow Machine™
From the
EQD® website:
"This one is for experimenters, adventurists, and noisemakers. Totally not for purists and/or tone
hounds. There are no "natural sounds" that come from this box. It takes modern DSP and uses it as
a tool of future past to create real-time pitch shifting using digital oscillators."
I built the PedalPCB
schematic wasn't available in the project doc so I traced the circuit directly from the PCB with the
thought of doing a 125B version at some point. Well, how soon is now?
In order to miniaturize the project the expression control option was eliminated. The other
compromise was to leave all the numerous 1uF coupling caps as MLCC type. One mod was added
- a kill switch. When this switch is flipped it eliminates the dry signal so the effect output is wet only.
This offers a new dimension to an already bizarre sounding pedal.
• 1st: Controls the level of the primary harmony.
• 2nd: Outputs an octave above or below the primary harmony (depending on where the PITCH
control is set).
• TRACK: Changes the operational clock frequency of the FV-1. In practice, it changes the
amount of delay between the wet and dry signal.
• PITCH: Changes the harmonic pitch shifting of the FV-1 input from a 4th interval below to a 3rd
interval above.
• MAGIK: Sets the feedback amount when the "MAGIC" footswitch in engaged.
• TONE: A passive low pass filter.
• KILL: This switch lifts the dry signal from the audio path so the output comes directly from the
wet (FV-1) signal.
Further study: https://www.earthquakerdevices.com/rainbow-machine
Terms of Use: You are free to use purchased RainbowPuker circuit boards for both DIY and small commercial operations. You may not offer RainbowPuker PCBs for
resale or as part of a "kit" in a commercial fashion. Peer to peer re-sale is fine, though.
Technical assistance for is available via the
available to respond via email in a timely and continuous manner, and (2) posting technical problems and solutions in the forum creates a record from which other
members may benefit.
All copyrights and registered trademarks are property of their original owners. Any mention of trademarked or intellectual properties in this documents is purely for
comparative purposes.
Leprechaun a few years ago and thought it was pretty wild. At the time, the
madbeanpedals forum. Please go there rather than emailing me for personal assistance. This is because (1) I'm not always
Last Updated:
April 23, 2024 6:51 PM
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