Showing posts with label Eurorack. Show all posts
Showing posts with label Eurorack. Show all posts

Monday, 7 May 2018

Metro Modular - Superbooth 2018


A few pics of some Metro Modular Modules.
 tHIS is the "Test Eagle". I use it for connection of old lab oscillators and signal generators to my eurorack modules.
 Modular Grid

Metro Modular is a synth manufacturer from Sydney Australia.
Divkid interviewed Justin from MM in Germany at Superbooth 2
018.
Check out the video here:
https://www.youtube.com/watch?v=TU5Pxwfbyp4

Another of the modules I own is the Steel Falcon VCF.
http://www.metro-modular.com/index.php/system-3000/mm3461b-steel-falcon-vcf-se
This uses the LM346.


 It is a much improved quad version of the LM4250 chip that is used in many Polivoks VCF clones (and the UA776 chip which was itself copied by the Soviets!) . The Steel Falcon is a cross between a Polivoks and a Roland system 100m filter.

The 3rd MM module I have is the MM315 balanced modulator.
 It's a ring modulator & VCA.
http://www.metro-modular.com/index.php/the-capricorn-series/mm315-balanced-modulator


Sunday, 6 May 2018

NLC Hyperchaos Deluxe


These are my build notes for the NLC Hyperchaos Deluxe module.
It's a nonlinearcircuits eurorack  module.

It's based on the: 

NLC - Primal HyperChaos 



There are 10different CV outputs and 2gate outputs

The CV IN is associated with the CLIMAX pot which determines how high the peaks go. The module can be greatly influenced by the CV in signal and can exhibit some fairly nutty responses at times.

Use a fast PWM signal on gate input to get different operating frequencies, change to pulse width to vary


The virgin PCBs
The Rate input can be used in a few different ways:
 1. With nothing patched in the circuit operates in slow mode
 2. With a cable patched in, but its other end hanging loose, the circuit operates in fast mode. 
 3. Feed a gate signal to the Rate input and the circuit will vary between fast and slow modes (gate high = slow)
 4. Feed a fast clock signal and you can get the circuit to operate at different speeds. 

This is quite dependent upon the frequency of the incoming clock and can take some tweaking to get right. If the clock is too fast it will mainly appear to be in slow mode
NLC is as aussie as vegemite.





Politenessman is a comic.... from National Lampoon.
It's true, even synths look better on doilies.



Headers, etc




NEXT, insert LEDS.


Links:
+ NLC Wiki
+ NLC Buildnotes

https://static1.squarespace.com/static/5e6e99e8bd2f8a6de8454feb/t/602e63c5855fc5303351d699/1613652938255/HYPERCHAOS+DELUXE+build+and+BOM.pdf

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You can find more NLC builds here.
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Tuesday, 1 May 2018

Triple Sloth - NLC Build notes

These are my revised build notes for the Nonlinear circuits triple sloth.

It's a module in Eurorack format that contains 3 chaos circuits.
This most recent variation of the sloth is a evolution of the original 4HP sloth module I built in 2015.
It was called the super sloth back then. You could build 3 different versions of the module basically by changing the capacitors.

Andrew later came up with a 12HP version This had 3 types of sloth chaos.
It was actually 3 of the supersloths mounted behind one 12HP panel.
Notice the differing sizes of Electro caps.

The new 2017 sloth uses just 2 PCBs.

nlc Words of wisdom.

 All animals are equal, but some animals are more equal than others.


 Totally agree. Give me Gluten !!!
Live fast, Die GG ????
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 Back to the build.
 ICs first
DONT do this:
Wrong side !!!!.... the board was accidently reversed

Below is the correct way:
.....the side the jacks & pots are placed on IS the side with no printing on it.


The Diodes d1 & D2 need to be reversed.

Change R7  to 330K
 




Links:
+ NLC Wiki
+ NLC Build notes & BOM


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You can find more NLC builds here.
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Monday, 30 April 2018

Buffered multiples - BMC Eurobuffer

Just built a Barton Musical Circuits Eurobuffer. BMC037. It's a buffered multiple.
Very easy build. Uses a TL047
Build notes and schematics are here:
http://www.bartonmusicalcircuits.com/eurobuffer/





Got me thinking about how they work just in case I wanted to go totally DIY.
MFOS - Music from Outerspace use TL084s instead of TL074s
 http://musicfromouterspace.com/index.php?MAINTAB=SYNTHDIY&PROJARG=OLDIESBUTGOODIES/VOLTAGEMIXER/voltagedist1.html

They call their multiple a "Control Voltage Distributor".
The pinout for the TL084 & TL072 are identical

Probably any low offset, high speed opamp will work ....
such as the TL062, TL064, TL072, TL074, TL082, TL084 series

Links
+ BMC website (lots of great stuff here)
+ Muffs

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For more Euro DIY builds click here:
http://djjondent.blogspot.com.au/2017/12/diy-index.html
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Sunday, 29 April 2018

Sonic Potions - Penrose Quantizer

I purchased this as a kit a few years ago and only recently built one.
Here are some pics.
The official build notes are here:
https://www.sonic-potions.com/penrose

Its a fairly easy build.
Trickiest part was getting the buttons to line up perfectly straight.

 Each pack comes with some camel balls and some jewelry
The Jewelry is in the shape of a bottle of potion.













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For more Euro DIY builds click here:
http://djjondent.blogspot.com.au/2017/12/diy-index.html
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