It's been over a year since the original recording.
Finally getting down to using some of those old Buchla 100 samples.
Some of the original samples were taken in this session.
The piano & drums are obviously sampled externally.
The bass lines are all Buchla 100 & 200.
Saturday, 11 July 2015
Serge / NLC Modular - Die Blechtrommel
It's also the name given to a NLC drum module featured on this track.
Andrew F of NLC (NonLinearCircuits) tells me that this is based on a early Japanese drum module which he has modified. I think it sounds just awesome.
This minimal patch is self generating - I tweak here and there but if left alone for long enough, it will evolve into new patterns & melodies.
Some really beautiful sounds here. I don't think the video does this justice. I think I'll use some of these sounds in a future track.
Saturday, 4 July 2015
Dinsync 303 acid remix - deep house style
The original video, pics, for this remix can be seen here:
http://djjondent.blogspot.com.au/2015/05/dinsync-303-acid.html
http://djjondent.blogspot.com.au/2015/05/dinsync-303-acid.html
Wednesday, 1 July 2015
Santiago de Cuba - Cuba Trip
The news today is all about the thawing of relations between the US & Cuba.
It's about time. I visited Cuba in 2010/11. Lovely people.
Santiago de Cuba was the fifth village founded by Spanish conquistador Diego Velázquez de Cuéllar on July 25, 1515.
The first cathedral was built in the city in 1528. From 1522 until 1589 Santiago was the capital of the Spanish colony of Cuba.
The city was plundered by French forces in 1553, and by British forces under Christopher Myngs in 1662.
Casa de Diego Velazquez - this is the oldest colonial house in Cuba & probably North America.
It's about time. I visited Cuba in 2010/11. Lovely people.
Santiago de Cuba was the fifth village founded by Spanish conquistador Diego Velázquez de Cuéllar on July 25, 1515.
The first cathedral was built in the city in 1528. From 1522 until 1589 Santiago was the capital of the Spanish colony of Cuba.
The city was plundered by French forces in 1553, and by British forces under Christopher Myngs in 1662.
Casa de Diego Velazquez - this is the oldest colonial house in Cuba & probably North America.
Address: Francisco Vicente Aguilera, Santiago de Cuba, Cuba
Dating from 1522 - it was the residence of the Island's first Govenor.
Excellent Beer.
Dance Classes :-)
----------------------------------------------------------------------------------------------------------
For more Travel Postcards Click Here
For more on Cuba Click Here
NLC JerkOff - Chaos Module - Build notes
This is a really cool chaos module & is super easy to build. It uses chaotic oscillators based around Jerk Equations. It's a excellent source of CVs - for modulating & controlling filters, VCOs, mixing with envelopes, etc etc
Andrew's build notes for the single Jerkoff module are here:
http://www.sdiy.org/pinky/data/single%20JERKOFF.pdf
Build notes for the double JerkOff are here:
http://www.sdiy.org/pinky/data/DOUBLE%20JERKOFF.pdf
WAMOD - More Notes
Much of the original research & design was done by J. Sprott of the University of Michigan.
You can read his paper (in PDF format) here:
http://sprott.physics.wisc.edu/pubs/paper352.pdf
The circuit consists of two feedback loops. The first involving 3 integrators.
The second uses two integrators and a inverter/diode. (Intergrator's are common to analog computers)
I understand this is described as a chaotic phase-shift oscillator ... consisting of an inverting amplifier (the 741 opamp??) with its output fed back to its input through a phase-shift network consisting of resistors and capacitors.
Here are some pics of the NonLinearCircuit PCB:
Headers first:. Resistors & caps next
Andrew has left this module open to lots of experimentation. Above are the marked caps & resistors.
Time to install the LEDs.
I've placed these on the front panel. These LEDs are the superbright variety though I'm not sure of their exact forward voltage or current so I'm experimenting a bit ....using a 10k resistor for now.
(The LED resistor is marked as RL on the PCB)
Testing the initial build.
LEDs seem to be working.... haven't burnt out yet. :-)
Useful Links
1. Chaos Theory & Jerk Circuits
2. Mongol/Jerkoff - Youtube Video
---------------------------------------------------------------------------------------------------
Click here to return to the NLC Build Index:
http://djjondent.blogspot.com.au/2015/03/non-linear-circuits-ncl-index.html
Andrew's build notes for the single Jerkoff module are here:
http://www.sdiy.org/pinky/data/single%20JERKOFF.pdf
Build notes for the double JerkOff are here:
http://www.sdiy.org/pinky/data/DOUBLE%20JERKOFF.pdf
WAMOD - More Notes
Much of the original research & design was done by J. Sprott of the University of Michigan.
You can read his paper (in PDF format) here:
http://sprott.physics.wisc.edu/pubs/paper352.pdf
The second uses two integrators and a inverter/diode. (Intergrator's are common to analog computers)
I understand this is described as a chaotic phase-shift oscillator ... consisting of an inverting amplifier (the 741 opamp??) with its output fed back to its input through a phase-shift network consisting of resistors and capacitors.
Here are some pics of the NonLinearCircuit PCB:
The circuit has 3 outputs: X, Y, Z and 1 input ‘in’.
Feeding it gates or triggers should get the output signals to sync with other modules.
Feeding it gates or triggers should get the output signals to sync with other modules.
Andrew has left this module open to lots of experimentation. Above are the marked caps & resistors.
The rest of the component values are very much up to you to pick. I've decided to use 100K B pots.
It's recommended to use resistors with half the value of the pots.... thus 47K ohms are the closest.
These 3 caps are the ones you choose to set the base frequency. I've picked 1uF.
The rest of the caps are for decoupling. There are 4 of these. ....any value between 10nf & 100nf is fine. I've used 47nF.
The pots are all 100k Linear.
Time to install the LEDs.
I've placed these on the front panel. These LEDs are the superbright variety though I'm not sure of their exact forward voltage or current so I'm experimenting a bit ....using a 10k resistor for now.
(The LED resistor is marked as RL on the PCB)
Testing the initial build.
LEDs seem to be working.... haven't burnt out yet. :-)
Decided to leave the LEDs where they are for now. Should have cut the legs longer.
Useful Links
1. Chaos Theory & Jerk Circuits
2. Mongol/Jerkoff - Youtube Video
---------------------------------------------------------------------------------------------------
Click here to return to the NLC Build Index:
http://djjondent.blogspot.com.au/2015/03/non-linear-circuits-ncl-index.html
Sunday, 28 June 2015
VCS 3 - Putney
Wednesday, 24 June 2015
555 Resonator Build Notes - NLC (NonLinearCircuits)
This is one of my favourite NLC circuits.
It's very versatile. It can be used as a filter, a VCO, a voltage controlled noise source and a voltage controlled drone module.
The module will oscillate without input (depending on the pot settings).
I like inputting a signal from a VCO which will trigger each 555 IC to create pulses.
These pulses can be manipulated with CV to create complex waveforms.
Andrew's manual for the 555 can be found here:
http://www.sdiy.org/pinky/data/FILTER%20panel%20manual.pdf
And his official build notes are here:
http://www.sdiy.org/pinky/data/Its%20555%20build%20notes.pdf
I have a version of this module in Serge/Banana format.
This build however is for a Eurorack Format module.
First, some pics of the virgin panel & PCB before we begin.
The module takes it's name from the 555 timer IC. This integrated circuit is used in a variety of timer, pulse generation, and oscillator applications. It's a very common IC and is cheap as chips.
The standard 555 package includes 25 transistors, 2 diodes and 15 resistors on a silicon chip installed in an 8-pin mini dual-in-line package (DIP-8) .
There are plenty of great videos on this versitile chip:
https://www.youtube.com/watch?v=tn5-XiB8oJk
https://www.youtube.com/watch?v=stN-ZzHfiO4
Andrew's module uses 5 of these 555s. If I understand Andrew's schemos correctly,
each is part of an individual one shot circuit (also known as a Monostable Multivibrator).
Pin 1 is grounded.
Pin 2 - The trigger input.(connected to C5 - 1nf cap)
Pin 3 - Output.
Pin 4 - usually connected to + VCC to avoid accidental reset.
Pin 5 - grounded through a capacitor (c3 - 10nF?) to avoid noise problems. (This is the decoupling cap?).
Pin 6 - (threshold) is shorted to pin 7 - both are connected to ground via C6 (10nF cap).
Pin 7 - connected to the pin 6 & the discharge capacitor (not shown in the above schemo) - C6
C6's discharge time determines the pulse width.
Pin 8 - connected to the supply VCC.
The output of the 555-Monostable Multivibrator/oneshot remains low until a trigger pulse is applied to pin 2.
It's probably a good idea to install the headers for these ICs along with the other 3 ICs and power connector first.
The other integrated circuits used in this build are two TL072s & one TL074.
The TL07x series are pretty common Op Amps that you will often find in synthesizers.
The TL 072 is a low noise JFET input Op Amp .....commonly used in filters & audio preamps.
The TL074 is a quad Op Amp.
Each of these 4 operational amplifiers incorporates well matched, high-voltage JFET and bipolar transistors. Each op amp has 1 output & 2 inputs (inverting & non-inverting). Voltage is on pins 4 & 11.
But before I install all these, I'll install the resistors, then caps & trannies
The easy ones first.
Now it's time to install the 'cp' caps & decoupling caps.
The cp caps & trannies form VC resistors that control the pulse width of the signal from each 555. Andrew has suggested starting with 10nF caps and then experimenting with different values.
Next the decoupling capacitors. As their name implies, they decouple or separate one part of a circuit from another. 555 ICs can be very noisy and these caps absorb some of the noise, reducing the effect one part has on another. There are 15 of these caps.
Andrew has suggested values between 47nF & 100nf. He says that the exact value won't make any difference. Use whatever fits and you have a lot of. "The main point is the 555s have plenty of decoupling, hence the 10uF as they virtually short +V to gnd as they do their thing".
Next, the transistors. These include ten BC 547 & ten BC557.
The BC 547 is a NPN transistor.
The BC 557 is a PNP. The cp capacitors and the transistors form VC resistors that control the pulse width of the signal from each 555.
Install the pots:
And the jacks.
Initial jack connections: Blue = Ground, Black = Out, Brown = In.
Test to see how it sounds as a filter by plugging in a sound source (eg: your Dual VCO).
Now connect the rest of the jacks.
Wow ... looks and sounds great !!!
-----------------------------------------------------------------------------
Useful Links:
1. NLC filter panel
2. NLC notes (5 more)
---------------------------------------------------------------------------------------------------
Click here to return to the NLC Build Index:
http://djjondent.blogspot.com.au/2015/03/non-linear-circuits-ncl-index.html
It's very versatile. It can be used as a filter, a VCO, a voltage controlled noise source and a voltage controlled drone module.
The module will oscillate without input (depending on the pot settings).
I like inputting a signal from a VCO which will trigger each 555 IC to create pulses.
These pulses can be manipulated with CV to create complex waveforms.
Andrew's manual for the 555 can be found here:
http://www.sdiy.org/pinky/data/FILTER%20panel%20manual.pdf
And his official build notes are here:
http://www.sdiy.org/pinky/data/Its%20555%20build%20notes.pdf
I have a version of this module in Serge/Banana format.
This build however is for a Eurorack Format module.
First, some pics of the virgin panel & PCB before we begin.
The module takes it's name from the 555 timer IC. This integrated circuit is used in a variety of timer, pulse generation, and oscillator applications. It's a very common IC and is cheap as chips.
The standard 555 package includes 25 transistors, 2 diodes and 15 resistors on a silicon chip installed in an 8-pin mini dual-in-line package (DIP-8) .
There are plenty of great videos on this versitile chip:
https://www.youtube.com/watch?v=tn5-XiB8oJk
https://www.youtube.com/watch?v=stN-ZzHfiO4
Andrew's module uses 5 of these 555s. If I understand Andrew's schemos correctly,
each is part of an individual one shot circuit (also known as a Monostable Multivibrator).
Pin 1 is grounded.
Pin 2 - The trigger input.(connected to C5 - 1nf cap)
Pin 3 - Output.
Pin 4 - usually connected to + VCC to avoid accidental reset.
Pin 5 - grounded through a capacitor (c3 - 10nF?) to avoid noise problems. (This is the decoupling cap?).
Pin 6 - (threshold) is shorted to pin 7 - both are connected to ground via C6 (10nF cap).
Pin 7 - connected to the pin 6 & the discharge capacitor (not shown in the above schemo) - C6
C6's discharge time determines the pulse width.
Pin 8 - connected to the supply VCC.
The output of the 555-Monostable Multivibrator/oneshot remains low until a trigger pulse is applied to pin 2.
It's probably a good idea to install the headers for these ICs along with the other 3 ICs and power connector first.
The other integrated circuits used in this build are two TL072s & one TL074.
The TL07x series are pretty common Op Amps that you will often find in synthesizers.
The TL 072 is a low noise JFET input Op Amp .....commonly used in filters & audio preamps.
The TL074 is a quad Op Amp.
Each of these 4 operational amplifiers incorporates well matched, high-voltage JFET and bipolar transistors. Each op amp has 1 output & 2 inputs (inverting & non-inverting). Voltage is on pins 4 & 11.
But before I install all these, I'll install the resistors, then caps & trannies
The easy ones first.
10uF electro caps (x7), 1nF (x10) & 10nF polyesters (x5).
Now it's time to install the 'cp' caps & decoupling caps.
The cp caps & trannies form VC resistors that control the pulse width of the signal from each 555. Andrew has suggested starting with 10nF caps and then experimenting with different values.
Next the decoupling capacitors. As their name implies, they decouple or separate one part of a circuit from another. 555 ICs can be very noisy and these caps absorb some of the noise, reducing the effect one part has on another. There are 15 of these caps.
Andrew has suggested values between 47nF & 100nf. He says that the exact value won't make any difference. Use whatever fits and you have a lot of. "The main point is the 555s have plenty of decoupling, hence the 10uF as they virtually short +V to gnd as they do their thing".
Next, the transistors. These include ten BC 547 & ten BC557.
The BC 547 is a NPN transistor.
The BC 557 is a PNP. The cp capacitors and the transistors form VC resistors that control the pulse width of the signal from each 555.
Install the pots:
And the jacks.
Initial jack connections: Blue = Ground, Black = Out, Brown = In.
Test to see how it sounds as a filter by plugging in a sound source (eg: your Dual VCO).
Now connect the rest of the jacks.
Wow ... looks and sounds great !!!
-----------------------------------------------------------------------------
Useful Links:
1. NLC filter panel
2. NLC notes (5 more)
---------------------------------------------------------------------------------------------------
Click here to return to the NLC Build Index:
http://djjondent.blogspot.com.au/2015/03/non-linear-circuits-ncl-index.html
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