Sunday, 25 February 2018

Wasp - Synth tests.

This synth has been midified.

Using a Korg SQ-1 to trigger.

LOvely sounding filter.



Saturday, 24 February 2018

Make Noise Krell patch

Reminds me of the old Buchla Krell patches.
The name originates from the film Forbidden Planet
Its a 1956 American science fiction film produced by Nicholas Nayfack, directed by Fred M. Wilcox and starring Walter Pidgeon, Anne Francis and Leslie Nielsen.

This is self playing.

The Make Noise only has one random voltage source and one VCO, but it's still very flexible.

The film was groundbreaking as the first of any genre to use an entirely electronic musical score, courtesy of Bebe and Louis Barron.

Links:
+ Krell search

Wednesday, 21 February 2018

CMOS cookbook

Awesome book.

A post shared by jono (@dj_jondent) on
I think this is an essential text on all things CMOS.
The author is Don Lancaster.

"TTL Cookbook was equally solid!"

Others in this series are :
The IC opamp cookbook

 and Lancaster's "Active Filter Cookbook".

Notes:
+ CMOS page 
+ DIY page 
+ TTL page
 

Tuesday, 20 February 2018

dIVISION 6 - Business Card Sequencer

A very easy build. The PCBs came as a kit with components.
 I'll definitely buy the bigger one.

I bought this as a kit, with all parts including the microcontroller.




A post shared by jono (@dj_jondent) on
Links:
+ Division6
+ BOM and assembly

NLC Eurorack power distroboard.

Some pics of the nonlinearcircuits distroboard.

What is covfefe? The tweet by Donald Trump that baffled the internet ...

 (n.) When you want to say "coverage" but your hands are too fat and small to hit all the letters on your keyboard.

Back to the build.
Notice the noise reducing capacitors.  
These are decoupling capacitors. They filter out unwanted noise from power supplies.
"A decoupling capacitor is a capacitor used to decouple one part of an electrical network (circuit) from another. Noise caused by other circuit elements is shunted through the capacitor, reducing the effect it has on the rest of the circuit". (Wikipedia).

 In a eurorack system, each module shares a common path to the power supply.
So changes in the current drawn by one one module may produce voltage changes large enough to affect the operation of others. The decoupling capacitor works as the module's local energy storage. The capacitor is placed between the power line and ground. It provides a bypass path for transient currents reducing the chance of voltage spikes and fluctuations.

 I used 3.3K for the LED resistors

  the connector:
oo| GATE
oo| CV
oo| +5V
oo| +12V
oo| GND
oo| GND
oo| GND
oo| -12V 


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Tiwanaku - Bolivia

This is a Pre-Columbian archaeological site in western Bolivia.
It was discovered in 1549 by Spanish conquistador Pedro Cieza de León.
It's near Lake Titicata.

 The Gate of the Sun. This megalithic solid stone arch is constructed from a single piece of stone. The weight is estimated to be 10 tons. The inscriptions found on the object are mysterious. They are believed to be either of astronomical and/or astrological significance.
The Gateway is 2.8 metres high and 3.8 metres wide. 
 


The lintel is carved with 48 squares surrounding a central figure. Each square represents a character in the form of winged effigy. There are 32 effigies with human faces and 16 with condors' heads. All look to the central motif: the figure of a man with his head surrounded by 24 linear rays that may represent rays of the sun.
Some historians and archaeologists believe that the central figure represents the “Sun God”, while others have linked it with the Inca god Viracocha.
(Wikipedia).

Most archieologists appear to date the site to around 300BC to AD 300.
The area around Tiwanaku may have been inhabited as early as 1500 BC.


                        Ponce Monolith.

Such statues perhaps represented the race of stone giants which first populated the world in pan-Andean mythology. Gold pins and traces of piant indicate they were once clothed in textiles and decorated with bright colours. The statue is 3.5 metres tall and dates to c. 300 CE.

 The figure holds a kero (qero) or tall beaker in one hand and a staff-like object, perhaps a sceptre or coca snuff tablet, in the other.

Another mega statue.



Kalasasaya, Tiwanaku. This walled compound of sandstone blocks creates a sacred space used for public and religious ceremonies. It measures 130 by 120 metres.   Standing in the precinct is the Ponce Monolith.

 It has stone heads protruding from the interior of its sandstone perimeter walls






Pumapunku.
Kantatallita is one of the most destroyed ruins of Tiwanaku, where we see huge blocks of cut stone in great geometric detail.


Kantatallita Lintel, Tiwanaku, Bolivia

For more travel postcards click here:

Sunday, 11 February 2018

Bindubba sequencer - NLC build notes

This is a wonderful sequencer.
I have one of these in Serge format and can't wait to test the eurorack version.

The colour code for the 4U panel : Blue are inputs. Red are outputs.
This sequencer has two sets of inputs, a CV out, inverted CV out, glide out and 16 gate outs.
There are also two direction inputs to control forward and backward motion, and two reset inputs
Its interesting to have two different clocks. These will form complex patterns.

Here are some pics of the unbuilt Euro panel and PCBs.

Some NLC words of wisdom
Is this a reference to the 1997 film Con Air???? .... Nicolas Cage acted as Cameron Poe, the burdened soldier who just wants to go home. 

to be continued.....

Links:
+ NLC Build notes& BOM
+ NLC wiki - description & usage of the Bin sequencer
+ Bindubba 1 & 3 sequencers with Kilpatrick Phenol

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