Noise Engineering Pura Ruina Manual

Three-stage cv-controlled full-wave rectifier

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Noise Engineering

Pura Ruina

Three-stage CV-controlled full-wave rectiﬁer.

Overview

Type Three-stage rectiﬁer/folder

Size 8HP Eurorack

Depth .8 Inches

Power 2x5 Eurorack

+12 mA 75 mA

-12 mA 65 mA

Pura Ruina is a three-stage CV-controlled fully-hyphenated full-wave rectiﬁer/distortion designed for

audio. Simple waveforms can be manipulated into completely new and exciting tones, and already-

complex sounds can be shredded into sonic oblivion. Add some CV and you'll never want to let PR out

of your rack! Each stage has an individual level control with corresponding CV and individual out, as

well as feeding to the universal Sum output. PR's rectiﬁcation creates a unique ﬂavor of distortion

unlike standard wavefolding or clipping. The possibilities are virtually endless: add to a west-coast

style complex oscillator setup for unique timbral shaping, annihilate a percussion mix through it, run its

individual outs through other Ruina modules for further mayhem... You'll never run out of awesome

things to try, we promise. You know you want one.

Etymology

Pura -- from Latin: "pure"

Ruina -- from Latin: "destruction"

"Pure destruction"

Input & output voltages

CV inputs are all 0-5v.

Special Thanks

Shawn Jimmerson, as always, has been a guiding light throughout the development of this module.

Page 1: Special Thanks
+12 mA 75 mA -12 mA 65 mA Pura Ruina is a three-stage CV-controlled fully-hyphenated full-wave rectiﬁer/distortion designed for audio. Simple waveforms can be manipulated into completely new and exciting tones, and already- complex sounds can be shredded into sonic oblivion. Add some CV and you’ll never want to let PR out of your rack! Each stage has an individual level control with corresponding CV and individual out, as well as feeding to the universal Sum output.
Page 2 TO POWER. Warranty Noise Engineering backs all our products with a product warranty: we guarantee our products to be free from manufacturing defects (materials or workmanship) for one year from the date of the original retail purchase (receipt or invoice required). The cost of shipping to Noise Engineering is paid by the user.
Page 3 Interface See Design Notes (below) for information on full-wave rectiﬁcation. Pura Ruina Dry signal volume. Single full-wave rectiﬁcation stage volume. Double full-wave rectiﬁcation volume. Triple full-wave rectiﬁcation volume. CV ins 1/2/4/8: CV control of volume for each stage. Knobs act as oﬀsets for the CV inputs.
Page 4 And then there was the fateful day when we decided to do a series of distortions. Although the concept for the series was based on other circuits and modules, Pura Ruina quickly slotted in. We revised it to ﬁt that line.