NLC - CellF Voice - Build notes

I've had this PCB/panel for 4 years... finally getting around to building this.

I finished the companion to this about a year ago, the CellF action.

These two panels were developed for the cellF neural synth project where a synthesizer was made to be controlled by live human neuron cells.

Some pics of the virgin PCBs

The CellF action build uses smd resistors, caps & ICs.
All transistors are thru-hole. 

 

The PCB is very large 

Each board has. 
2 tri-core VCOs 
2 LFOs 
2 LPGs 
3 VCAs 
VC spring reverb 
diff-rectifier 
jerkoff chaos 
2 281 EGs 
Sauce of Unce. 
Pots and sockets mount on PCB, no wiring (except to reverb tank). 

I'm building version 2.0  

 I usually put on the ICs first, as these are the most fiddly.

Regarding the NJM13700 .

I'm using   regular LM13700 SOIC . they will fit (in addition to some NJM13700s)
These are transconductance amplifiers.

I'm using 470 ohm resistors for the LED resistors (RL)

There are 2 CMOS chips used in the build: 4001 & 4066

Using these 10V zeiners

The 10V voltage regulator: 7810

JFETS: using J112 x 4

Vactrols:
Using 2 types:

The single vactrol NSL. the white dot marks the cathode.

VTL 5c3/2..... I used them a lot in the buchla "clones"

The sloped edge marks the cathode. The cathode is labeled on the PCB with a K.

The Dual LED has a common Cathode. Its orientation doesn't matter.

Check the led fits in the panel hole before putting it all together. I had a batch of duals that were a bit big and the needed 0.5mm drilled out.

almost there.
Final tests.

Notes:
+ NLC blog
+ Build notes - official version 1.3
+ Voice - prototype working 
+ 

-----------------------------------------------------------------------------------

You can find more NLC builds here.

http://djjondent.blogspot.com.au/2015/03/non-linear-circuits-ncl-index.html

---------------------------------------------------------------------------------------

Buchla 100 - A new Future

To mark the end of 2016 & the beginning of 2017.

Buchla 100 (mostly vintage modules).

Kyoto Station, Japan

Breathtaking. This is the second largest station in Japan (after Nagoya Station) and is one of the country's largest buildings.

I think it's a futuristic masterpiece and should be on your "to do" list when you visit Kyoto, even if you're not into modern architecture.

Opened in 1997 to commemorate Kyoto's 1,200th anniversary, it is 70 meters high and 470 meters from east to west.

The architect was Hiroshi Hara.

He was a professor at the University of Tokyo until 1997, and has held an emeritus position since that time.

Hara's other buildings include the Yamato International Building in Tokyo 

and the Umeda Sky in Osaka.

Back to the train station:

The interior is a cathedral of glass and steel. Which reminds me a bit of the Musee D'orsay in Paris.

Both are train stations ...beautiful, though separated by a century.

...

Take the escalator from the 7th floor on the east side of the building up to the 11th-floor glass corridor, Skyway (open 10am to 10pm).

The Skyway is open 10am to 10pm. It runs high above the main concourse of the station.

...

Panorama of the Kyoto Tower and surrounds from the train station. 

 ------------------------------------------------------------------------------------------

Click here for more travel postcards

Squid Axon - NLC - Build notes

These are my build notes for the Nonlinearcircuits Squid Axon Eurorack module.

The Squid Axon is a circuit based on the Hodgkin- Huxley

 equation describing the chaotic behaviour observed in giant

squid axons.

Andrew's Build notes are here:
http://www.sdiy.org/pinky/data/Squid%20Axon%20build%20and%20BOM.pdf

Andrew's Blog info:
http://nonlinearcircuits.blogspot.com.au/2016/03/squid-axon.html

Basically it's a 4 stage analog shift register with two feedback paths, one nonlinear and one linear.

 I like to get the surface mount ICs on first.

..

I'm using this DG411 - from mouser.

 According to the specs, it requires the 100K & 120k resistors.

See Andrew's build notes.

 Get the rest of those SMDs on the board.

You're nearly there.

-----------------------------------------------------------------------------------

You can find more NLC builds here.

http://djjondent.blogspot.com.au/2015/03/non-linear-circuits-ncl-index.html

---------------------------------------------------------------------------------------