Tuesday, 6 February 2018

La Paz - Bolivia - The Cholas of Bolivia

Some pics of La Paz in Bolivia.
 La Paz, in Bolivia, is the highest administrative capital in the world, resting on the Andes’ Altiplano plateau at more than 3,500m above sea level.
 It's a crazy city... jostling pedestrians, honking, diesel-spewing minivans
.
Full of ladies wearing bowler hats.  Whats with the hats.???
The first thing that will strike you when you visit Bolivia are these bowler hats. They are everywhere, and most of the women wear them. 

It seems that this fashion started in the 19th century. The story is that the Manchester manufacturers first tried to export the hats to British railway workers in Bolivia but when this failed they turned their attention to the local women, saying that all the fashionable women in Europe were going around wearing these bowler hats.

“Legend” has it that those who were wearing the hats did not have problems with infertility. So it became vastly popular among the women from the Aymara indigenous group.

La Paz also named Chuqi Yapu (Chuquiago) in Aymara, is the seat of government and the de facto national capital of the Plurinational State of Bolivia. With an estimated 789,541 residents as of 2015, La Paz is the third-most populous city in Bolivia




For more travel postcards click here:

Sunday, 4 February 2018

Divide & Conquer - NLC - Build notes.

These are my build notes for the Nonlinearcircuits eurorack Divide & conquer module.
Obviously this is a clock divider.

4 different dividers:
1. /2, /4, /8, /16, /32, /64, /128, /256
2. /1.5, /3
3. /2.5, /5
4. /3.5, /7
 Its super flexible as you can patch outputs into inputs to get crazy divisions.

 Some NLC words of wisdom
Broke Down Engine and Other Troubles with Machines. This is a book by Ron Goulart.
 "Thirteen wry and terrifying tales of homo mechanicus (what we are becoming) versus the machines we have created." 1971.
I haven't read this, but it sounds a bit like The Terminator.
La Grande Bouffe is a 1973 French–Italian film directed by Marco Ferreri. "The film centers on a group of friends who plan to eat themselves to death. It satirizes consumerism and the decadence of the bourgeoisie." Wikipedia.

 ======================
Back to the build.
The CMOS chips you will need are: 4013, 4024, 4070.
They are all SOIC format.

CD 4024


The second from the left is the CD4070

I don't have any 4013s so I've ordered these:
Mouser No:
Mfr. No:CD4013BM96G4
Mfr.:Texas Instruments
Flip-Flops CMOS Dual D-Type Flip Flop
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I used 810 Ohm resistors for the LED resistors.

I ended up using these.

These rectifiers are for protection only .. against plugging the module in backwards.

If you are building lots of the NLC modules, buy these diodes in bulk. Andrew uses these in almost every project.


Soldering the headers.

I use standard 40pin male/female headers. The are cheap as chips on ebay. Cut them to size.

Jacks

The LEDs before soldering. Solder them only after you have secured the panel.
Ready to put it all together




Yes it lights up like a Christmas tree. That's a good sign.

Links:
+ NLC Build notes & BOM
+NLC Wiki
+ CMOS & Lunetta synths

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Saturday, 3 February 2018

Roger Waters Us & Them Tour - Sydney 2018

Some snippets of last night.

The original pig that was floated above Battersea Power Station was called "Algie".
It was designed by Roger Waters in 1976.

 Qudos Bank Arena.

This is from Roger Waters' Us and Them Tour.
... incredible performance. The light and sound show was nothing short of spectacular.


The Battersea Power Station plays a big role in the concert.

Its image was projected onto screens that were supported by suspended scaffolding which was lowered
above the audience .. complete with smoking chimneys.
The original coal fired station was built in the 1930s and was included on the cover art of Pink Floyd's 1977 album Animals and its appearance in the 1965 Beatles' film Help! 
It is one of the largest brick buildings in the world.


In 1965, Waters co-founded the progressive rock band Pink Floyd with drummer Nick Mason, keyboardist Richard Wright, and guitarist, singer, and songwriter Syd Barrett.

Waters is certainly not a fan of Trump. Lot's of images of Trump.....vomiting, driving a toy car, as a  naked man, etc .


His face appeared on a giant helium filled drone pig that floated around the room.

“Please help we are trapped in a dystopian nightmare”

The first half of the show was full of images of drone warfare and the refugee crisis.
Waters hasn't stopped his fight against injustice.


The end was brillant. The pyramid visuals were something I will always remember. The audience gave a standing ovation. Waters was visibly moved & emotional from it all. Thanks Roger.

Monday, 29 January 2018

Sly Grogan - NLC - Build notes

These are my build notes for the nonlinearcircuits Sly Grogan.
Its a envelope generator Eurorack module based on a design in Electronotes #86.

Some pick of the virgin PCB & panel

Get those ICs on first.

-------------------------------------
On Order:
Mouser No:
Mfr. No:
BZX79B2V7
Mfr.: Taiwan Semiconductor
Zener Diodes 2.7 Volt
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 The SMD version of the 4148
 Almost there, just waiting on some parts.
 Japanese slang term meaning "butt poke".

While waiting for those components do contemplate the ancient Japanese Art of Kancho.

The 2.7 V zener diode

The 100k trimmer







I used a 820 ohm resistor for the LED resistor. -----------------------------------------
Links
+ NLC Wicki
+ NLC Build notes & BOM
+ NLC Template



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Click here to return to the NLC Build Index:
http://djjondent.blogspot.com.au/2015/03/non-linear-circuits-ncl-index.html