Erthenvar Patch Chord Eurorack Module

YouTube Uploaded by erthenvar on May 15, 2011

"Erthenvar Patch Chord Eurorack Module Preview. Join the discussion: http://muffwiggler.com/forum/viewtopic.php?p=471072"

Erthenvar Patch Chord Sine/Saw Input And HOLD Function

Uploaded by erthenvar on May 20, 2011

http://www.erthenvar.com/

Instrument processing with PulpLogic and Erthenvar 2

YouTube Uploaded by erthenvar on Feb 19, 2012

"A series of videos demonstrating PulpLogic and Erthenvar Eurorack modules processing a bass guitar. Modules include Entry Point, Patch Chord, Unity Summer, and Exit Strategy."

Update:

Instrument processing with PulpLogic and Erthenvar 3

Uploaded by erthenvar on Feb 19, 2012

Erthenvar Patch Chord

YouTube Uploaded by erthenvar on Feb 12, 2012

"Demonstration of the Erthenvar Patch Chord Eurorack module available at erthenvar.com. Functionally, the module is somewhere between an oscillator and a waveshaper - and also can be described as a bank of two octaves of oscillator controlled oscillators"

Erthenvar Closes Shop

This one is in via John L Rice who had the following to say:

"They came up with a lot of important contributions for the Eurorack community including 1U Tiles, right angle 3.5mm patch cables, and case hardware, etc. (fact check me on that though, they are just the first people I know of that offered some of those items)" I'm not sure myself. If anyone knows feel free to comment.

Here is the announcement via Erthenvar:

"September 24, 2018

End of the Road

Dear friends,

We regret to inform you that effective Sunday, September 23rd 2018, Erthenvar is no longer accepting orders and is working to wind down.

We would like to thank you for your continued support over the years. You made this a fun and fulfilling endeavor.

I would like to thank M, which is actually short for mom, for her tireless work helping my dreams become a reality. Without her, I would have had to shut down years ago. Love you, mom!

A shout to John Kennedy, who I began this journey with way back in November, 2010.

Thank you to Jason Degelman for helping with builds and so many good modular discussions.

I still love the logo after all these years, thanks Alex Vu!

Please contact us if you are interested in purchasing the company.

I look forward to the next chapter,

Nicholas Gregorich"

You can find a handful of posts featuring Erthenvar here on MATRIXSYNTH.

Instrument processing with PulpLogic and Erthenvar 1

YouTube Uploaded by erthenvar on Feb 18, 2012

"First in a series of videos demonstrating PulpLogic and Erthenvar Eurorack modules processing a bass guitar. Modules include Entry Point, Patch Chord, and Exit Strategy."

Patch Chord Erthenvar + KOMA Elektronik FT201

Published on Dec 20, 2012 BY DavideModu

"Patch Chord Erthenvar+KOMA Elektronik FT201+Doepfer MAQ 16/3+PlanB Model 15 VCO+Boss RE 20 Space Echo
Audio: http://www.mixcloud.com/Dave77/patch-chord-erthenvar-koma-elektronik-ft201/"

Erthenvar: Monorocket M2.5 Square Rail Nuts swap

YouTube Uploaded by erthenvar on Dec 16, 2011

"Step by step instructions of a $10 modification to swap Erthenvar M2.5 Square Rail Nuts and screws into your Monorocket case"

Erthenvar Patch Chord Version 3

Published on Jul 28, 2013 erthenvar·10 videos

"The Erthenvar Patch Chord gets multiple waveforms and some other neat features in version 3"

Patch Chord in context

YouTube Uploaded by erthenvar on Mar 4, 2012

"Using the Erthenvar Patch Chord to generate chords in a Eurorack system. Visit http://erthenvar.com"

MONOTRON-e 4 VOICE with custom knobs from erthenvar

Published on Mar 10, 2013 FSK1138·168 videos

"the PATCH :

maths and 4ms PEG
are driving the filter and vco CV inputs of the 4 monotron-e units

all 4 VCO are sent to the 4MS VCA matrix
16 inputs of the 4MS VCA matrix are being modulated by maths, 4ms PEG
and 4 lfos from the monotron-e that have been split with
pulp logic patch multi-- this also provide the input for maths and the two 4ms peg

MFBseq02 triggers lfo reset and cv 1v/oct on all monotron-e units

output of the 4MS VCA matrix is mixed with MFB drum-99 mixer

4 monotron -e, maths, MFB drum-99 mixer
all with custom knobs from erthenvar

erthenvar.com/store/eurodiy/knobs/minifl­uted"

Lunchbox Chords

Published on Jan 10, 2013 erthenvar·8 videos

"Erthenvar Patch Chord in a PulpLogic Eurorack Lunchbox along with some Doepfer modules and PulpLogic 1U Tiles. Visit http://erthenvar.com"

Patch Chord sequenced and filtered

YouTube Published on May 9, 2012 by erthenvar

"Sequencing a chord with the Erthenvar Patch Chord. Visit http://erthenvar.com"

Chords: Remember Chord Memory?

Published on Nov 19, 2014 erthenvar

"Auditioning some chord sounds for some hardcore techno using the Erthenvar Patch Chord along with the Pulp Logic Chords expander"

Erthenvar / Make Noise Lunchbox Easel [guided tour]

Published on Mar 3, 2013 donaldjasoncrunk·21 videos

"this is a tour of my new "Lunchbox Music Easel" (suggest a better name in the comments, PLEASE!). i try to explain my reasoning behind the module choices, and how it stacks up against the new Buchla Music Easel. i think it does well! this narrative intended for people with modular synthesizer knowledge. non nerds beware

the next video will be some performances with the Lunchbox easel - the sounds you hear in the background of this narrative come from 2 20 minute sets located on my soundcloud, pure lunchbox performances. https://soundcloud.com/donaldcrunk

buy the case here: http://erthenvar.com/store/lunchbox
and of course http://makenoisemusic.com/


ALSO: please download and enjoy my new record, released this week by Kamagraph Records!!!!!!!!!! http://kamagraphrecords.com/main.cfm \m/\m/"

4X4 Monotron-e Monotribe-e - Euroracked

Published on Dec 11, 2012 by FSK1138

"4monotribe euro racked
4pulplogic monotron-e

patch :
4monotrons vco fed into 4monotribe audio in
output of 4monotribes in to filter of 4monotron-e
output of the 4monotron-e are sent to Ensoniq dp4 quad fx unit
MFB seq02 is master clock
and provides 1/oct +vco+ vcf cv to the 4monotron-e
the 4monotribe-e are syned 1-2-3-4 with
unit 1 receiving clock from the MFB seq02
the Ensoniq dp4 is cv synced (delay+phaser and reverb+delay )
via the mfb seq02
patch ends there - i ran out of cables
special thanks to PulpLogic and Nicholas at erthenvar for custom building this unit and getting it out to me so quickly

monotron-E is currently out of stock
http://erthenvar.com/store/euromodules/monotrone"

Erthenvar Patch Chord Expander Prototype Noodling

YouTube Uploaded by pulplogic on Mar 20, 2012

"I just finished making a prototype of an expander module for the Erthenvar Patch Chord. The expander has switches that let you select an octave up or down for each semitone."

Doepfer Dark Energy Through Patch Chord

Published on Jan 9, 2013 creativegallerysynth·21 videos

"First try out of the Erthenvar Patch Chord. Slow..
Bassline: Doepfer Dark Time - Doepfer Dark Energy
Chords: Doepfer A-155 - Doepfer Dark Energy - Erthenvar Patch Chord
Effects: WMD Gamma Wave Source
Panning chords: Doepfer A-134
Additional piano: Nord Stage"

Erthenvar Patch Chord Details and Specs

"Erthenvar Patch Chord - a bank of 25 "Oscillator Controlled Oscillators", which can be used to generate chords in a Eurorack system.

The Patch Chord continously samples the cycle duration and duty cycle of the input waveform. It outputs 12 semitone steps above the input note, 12 semitone steps below the input note, and the root note itself (available from two output jacks). All outputs are pulse waveforms with continuously variable pulse width.

An oversized tri-color LED spans the color spectrum in each octave, so each note has a unique color! The input jack is passively multipled to an output jack so the visual effects of the LED can be had even if the module is not part of the current patch.

There four modulation types available, each with an input jack and a three-position switch. The switch can turn off the modulation, allow the CV value to control the parameter, or turn on the modulation. The modulation jacks are all DC coupled and respond to audio rate signals, though the tracked waveform has a lower limit of around 20 seconds per cycle.

The SQR modulation forces the tracked duty cycle to 50%, making all of the 25 outputs into square waves
The INT modulation changes the relationship between each output from a semitone step to an integer or harmonic step
The ZERO modulation resets all of the output counters to 0, similar to a sync function
The HOLD modulation stops tracking the input and keeps the last counted cycle duration and duty cycle values

This module requires +5V from the bus board! We offer the freelunch as a +5V solution.

Features

Eurorack power cable and M3 screws are included
A total of 25 oscillator outputs tracked from 1 input
RGB LED with color-per-note functionality
Four "ACV" audio rate CV inputs
C&K switches

Specifications
Eurorack horizontal pitch 22 HP
Depth 60 mm (2.36")
Maximum Input Current (+5V) 65mA
Maximum Input Current (+12V) 65mA
Maximum Input Current (-12V) 65mA
Input Impedance 112kΩ
Input Threshold 600mV
Output Impedance 1.2kΩ
Output Swing +/-5V"


Note, these videos have been previously featured on the site, but here they are in one giant 17 part playlist.

Patch Chord Erthenvar

Published on Dec 14, 2012 by DavideModu

"Audio http://www.mixcloud.com/Dave77/patch-chord-erthenvar-module/"

Three Amigos - Random Sequencer / Turing machine

Published on Apr 8, 2013 ISOTROPOSPHERE·111 videos

"Testing all three of the Random Sequencer / Turing machine modules I constructed.

Big Thanks to Tom Whitwell, Thonk, and Erthenvar for making this happen.

Custom panels fabricated by me and hand painted in the recesses. Design based loosely on the original panels for these modules.

Had fun making these and they work rather well."

Random Sequencer / Turing machine
Published on Apr 8, 2013

"This is a primary testing of the Tom Whitwell Random Sequencer / Turing machine module.

Also testing The Harvestman Evin 209 matrix mixer along with the cv ins and outs on the Thingamagoop.

Thanks again to Tom Whitwell, Thonk and Erthenvar for all things necessary to build this module.

Custom panel designed by me based on the original panel, hand painted recesses.

Enjoy!!"