Friday, 24 March 2017

Buchla rhythmic patches - 200e & 208

Finally getting a easel system together which combines the 208 with 200e.

I've had this beautiful 10U case (by Jason Butcher) for a few years now.


Was in a quandary as to which modules to put in. Should it be all 200/ 200& 100 combo
or 200e?
 As the case is a variation of the classic Music Easel case from the 1970s (Halliburton)
a 208 is obilgatory.

I've decided to go with 200e for now.
It's good to have something different to the standard easel configs.
Seems like a good combo.




Wednesday, 22 March 2017

Critter and Guitari Cellular Automata



Links:
Muffs - code
Github - more code
GetLoFi - DIY kit
Critter and Guitari - website
Circuit bent CA synth
Wikipedia
Muffs 2 - Mr Coops
Muffs 3 - PCB buy

Critter & Guitari Cellular Automata Synthesizer from Critter & Guitari on Vimeo.

--------

...
 Critter and Guitari Cellular Automata Synthesizer by Owen Osborn

I'm building a DIY version kindly provided by "n167tx" (Muffs)

The parts list is on the right.
You need to download the eagle file and upload to this viewer:
http://3dbrdviewer.cytec.bg/board


Eagle has a free viewer.
Download here:
http://www.autodesk.com/products/eagle/overview

Sunday, 19 March 2017

Ambient Electronica - Elektron - Mutables - Buchla

Some recordings taken last Friday (17/3/17).
Rory, Andrew & I are practicing for an upcoming gig.
Instruments used were an Elektron A4, Roland TR8 Drum,
some Mutable Instruments Euro modules and Buchla-Sputnik clone modules.









Thursday, 16 February 2017

Power Supply - NLC - Build notes

Building a Nonlinearcircuits PSU.
This just supplies +/- 12V for Eurorack modulars.

Andrew's build notes are here:
http://www.sdiy.org/pinky/data/WAMOD3%20%20psu.pdf


The virgin PCBs

 Ok, lets twerk
Keeping Miley happy.

The PCB receives 12VAC from a plugpack/ wallwart
. The 1N4004 diodes split this into positive and negative waveforms.
 
The 4700uF capacitors then smooth out these waves
. The 7812 and 7912 regulators then convert the rectified & smoothed
signals to +12V DC and -12V DC and these are fed to the connectors to be distributed to your lovely modules.
I'm using 250v TDK film caps for the four small 100nf caps
Probably a bit overkill, but it's what i had in stock at the time.


Some pics of the 7812 & L7912 voltage regulators attached to various heatsinks.


 In the NLC build notes, Andrew stresses the importance of isolating the regulators from the heat sinks.

The smaller heatsinks came with grommets and mica insulators, so I think I'll use those.
He also recommended using heatsink paste.

Andrew F recommended I use these - http://www.taydaelectronics.com/capacitors/electrolytic-capacitors/4700uf-50v-105c-radial-electrolytic-capacitor-19x40mm.html

25V caps are okay but better to get 35V or 50V rating. just to keep the action well clear of the edge.

Always bigger is better with heatsinks, smaller ones cant soak off so much heat so will limit the current output of the regs. With a small one you will only get 3-400mA, a big one will get you double that (roughly...very)

The other thing to watch is the proximity of the heatsinks to the caps.
They do appear to be pretty close in the pics.
My sinks don't appear to get hot but they could cause problems if the temp exceeds the cap ratings.
These caps have a rating of 105 degrees celsius.

Sunday, 12 February 2017

Double Knot - Synth

Thanks Cobramatic for showing me your new synth.
The Double Knot

...

It's very west coast. Uses Bananas for the internal patching.
http://lorre-mill.com/doubleknot/

Lots of great percussion.

Golden Rock - Burma

Golden Rock Buddhist pilgrimage site in Mon State, Burma.
 This precariously balanced granite boulder was according to tradition lifted by the Lord Buddah
and placed in this spot over 2000 years ago. It has remained in this position balanced by some strands of Buddah's hair.


New Years Eve.
So many people but very few foreigners.


The Rock is covered with 24K gold leaf.


The faithful
A new day

............... and a New Year.
Happy 2017


Our transport back down the mountain.

For more travel links click here:
http://djjondent.blogspot.com.au/2015/03/travel-postcards-index-my-travel.html