4093 Complex NAND Lunetta Module

YouTube via wonkythomas

"New Lunetta module! The one in the middle is a dual gated osc. & dual NAND gate built from a CD4093 Quad 2-Input NAND Schmitt Trigger IC.

Basic idea is taken from Nic Collins 'Handmade Electronic Music' A basic RC oscillator is built around the NAND Gate, with my module there is a panel input into the unused input pin on the chip, this is tied to ground w/ a 100K resistor so if nothing is plugged in the module does nothing, so the oscillator can be turned on & off from a logic signal at the input. Does great 'filter sweeps' & unison voice type fx.

The right hand side of the module is just 2 X 2 input NAND Gates. Inputs have a diode for protection so they can be used with signals from any source.

The patch in this video is basically taking a clock & a tone from the 40106 oscillator module runnning thru the gated osc. into a NAND gate w/ some feedback via a 4077 XNOR. The 40106 clock is triggering the Serge VCS which is triggering a Metalbox Dual AD. The audio output from the CMOS chips is being processed by a Blacet VCA & 2 Lockhart Wavefolders with CV from the VCS & Dual AD.

The changes in rythm / timing result from playing with the VCS Rise & Fall times & tweaking the relative phase of the inputs feeding the wavefolders."

Odds N Evens I

YouTube via wonkythomas
"X & Y are two bi-polar voltages (~+/-7.5V) which pass thru a network of high & low-pass filters. A pair of logic inputs, A & B, determine the point at which each of these voltages enter the filter networks. The outputs of the filters are then summed together & another pair of pots allow the output voltage to be altered without X & Y being changed.

In a way the two sets of pots can be seen as 'Intial' & 'Fine Tune'
In use its a little more oblique than that, altho the effect of turning a knob are fairly intuative.

The two LEDs on the breadboard show the +ve & -ve swing of the output voltage & do a good job of showing the way changing the various settings allow a transition from "stepped" to "smoothed" voltages.

"Odds & Evens" refers to the way in which the outputs of the high/low-pass filters are combined so that there is an equal amount of change between the two initial voltages over time.

The A & B logic control inputs are using the same signals to trigger envelopes altering timbre, hopefully illustrating the possible relationship between rythm & pitch."

Odds N Evens II


Update:

Odds N Evens III

"Last one for now... trying to show off the 'Fine Tune' control... fine tune is a real misnomer I will have to think of something else to call it... maybe just 'Variance' obtuse enough? Anyway, its the pot with the blue knob sitting there.

About 2 mins in I put an octave drop on one of the VCOs... nothing to do with this module but it sounds soooo cool!!

I hope this makes the purpose of this device abit clearer; take two gate sequences, set two pots to create a region of possability & let it rip! Nudge another control to move area of operation around & let it do its thing. I'm using pitch CV in the videos because its the easiest to understand without 'being there' but there are all kinds of other potential uses.

Take a kick & snare pattern from your analog gate sequencer & use those to control this module, the two CV outs can then be used to subtly alter the drum sounds in time, all related to the actual patterns being played. Take two gate outs from 2 seperate analog sequencers, have their CVs controlling pitch as per usual, but use the CVs produced by the gates to add accents or rythmic vibrato, or use the CVs to alter timbre via waveshapers or VCFs... all related to patterns already existing in the piece.

Having two seperate controls for the limits of operation means a wide or narrow set of differant voltages can be generated, as you can hear a great many notes can be created from a pair of pulse trains."

Dual Counter Seq Test 1

YouTube via wonkythomas

"I didn't know if the switches for the Jam Inputs would work with SPST switches... but the first one did, so I wired the rest up & everything works great!!

As usual Red = Output, Black = Input.... this is just a little frame / panel I use as a wiring jig but I'm really liking the layout."

4018 / 4029 Lunetta-esque Sequencer - Working!



"this is like a modular module... kind of a sequencer / clock / divider sandbox.

The top row handles interfacing to analog voltages; on the left is a simple comparator (In & Out) so any old voltage, LFO, Envelope etc. can be used to drive the CMOS chips. The next 5 bananas are a simple, single op-amp R2R digital to analog convertor so the outputs of the counters can drive a VCO etc.

The bottom row is the CD4029 , with a clock & direction input - the latter is really cool & can be used to 'loop' the counters.

The two middle rows are the in, out & controls for the Divide by N Counter. I have set-up switches for the Jam inputs so a pulse on the Preset Enable input with set the output states according to the switch settings making it a little like a regular sequencer but with the"

MPC w/ FRAC & EURO MODULAR!

YouTube via wonkythomas

"Finally getting some workable results.

Poor lighting & 100% dubious musical content aside, I think this is the way to go - to be honest I didn't expect much from the clock out of the M.F.B CV/MIDI module - I have never really got decent results from MIDI Clock, which is why I own Sync Shift MkII #0024, which can fix the MIDI lag - but sadly not the MIDI slop!

Synth sound is the Blacet Suitcase being controlled by the SEQ-02 with woompwoommp bass & some hand drums from the MPC."

Bug Clocked Lunetta

YouTube via wonkythomas.

Remember, to see more, click on the Lunetta label at the bottom of this post.

"More Lunetta noises (not loud enough!) being driven by a single clock, with a twist!

My slow 40106 drives the CV in of the 'Woggle Clock' on the breadboard. Inspired by Grant Richters use of a vactrol controlled 555 timer at the heart of the Wogglebug, I've adapted that part of the '#3' cct. for use with a home made LED+LDR in black tape vactrol. The output of the 555 is buffered with a Ken Stone Gate / Trigger cct. using the LM358N instead of a TL072.

You can kinda see / hear it work when I turn the pots, basic speed is controlled by one pot adjusting the amount of light going to the LDR, one pot adds the signal from the CV input.

I like that slow squarewaves going into the CV input create a crude burst generator, with lots of light during the on cycle of the waveform you get fast clock, then slow clock with no light during the off cycle,

Very fun with Lunetta Logic Processing (patent pending)

The finished module will have CV Input, CV Amount Pot, Speed Pot, Trigger Output / LED & Clock Output.

And yes, I really do need a better spot to hook these things up! Really need to clear some space."

Blacet Suitcase, Euro Step Sequence w/ MPC

YouTube via wonkythomas
"The SEQ-02 is running the same A-B cycle all the way thru, all the variations in timing are created by programming differant "clock" patterns into the MPC.

Pitch of 2 VCOs is controlled by a mixture of Sequencer CV, MIDI/CV Pitch & Binary Zone, then quantized by the Blacet Miniwave."

CMOS Bugs

YouTube via wonkythomas

"8008 Bass & Bug Sounds from 2 half finished Lunetta modules.

2 CD40106 oscillators feeding a CD4077 Exclusive NOR gate + Frac & Doepfer 3U modules.

The CMOS modules are much better in person. Red LEDs are mounted off the perf board, behind the red perspex panels.

The LEDs on the left are the oscillators - flashing LED is a cap value of 4.7uf which gets nice a sssllloooowww, gonna put a 10uf in as well :-D

LED on the right is hung of the output pin of the 4077 to indicate when there is logic occurring - but mostly just for added blinken!"

Doepfer A - 152 Digital Outs 3 step Sequencer

YouTube via wonkythomas
"Quick patch exploring the idea of Andreas. To use the Digital Out section of the 152 processed by a mixer as a sequencer!

Nothing fancy here like VC address, cos I only have 3 inputs on the Blacet Mixer / Processor, so if you have an 8 chan. mixer then you can extend this & modulate the VC Address to create more complex sequences. The 152 rocks!!!

M.F.B SEQ-01 is master of the SEQ-02 runnng 16 steps into the Clock in, the SEQ-02 Gate out is clocking the A-152. The SEQ-01 is doing a few other important jobs. Its triggering the VCS which modulates the 1st "note" in the sequence & its triggering a Blacet Binary Zone which is modulating the VC Waveshape of the Klangwerks modulator. An M.F.B Dual LFO is modulating the Rise time on the VCS & being CV'd by the CV out of the same SEQ-02 track that is clocking the 152.

Came out dark again... If I use overhead light its actually worse for shadows, need to strike a happy medium between quality & size."

Blacet Suitcase & M.F.B / Doepfer Sequencer + CV Generator.

YouTube via wonkythomas
"M.F.B SEQ 01, SEQ 02 & M.F.B Dual LFO provide voltages for a Binary Zone, Mini-Wave & A-152 T&H driven dual Sine VCO sequence.

Please excuse the poor quality, just playing around with my new rig :-D

You need to imagine ALOT of bass under all the mid/hi tones you can hear in the video"

MFB clock

Neural Pattern Generator Pt. 1

YouTube via wonkythomas

"Cos I'm too lazy to program sequencers, I mean come on pushing buttons & working out what "sounds good" is hard work, I figured an easier way to do it is to let some binary equations do the decision making for me, that way if the result is crap I can blame the machines... right?

Anyway. The 4089 is a 4 bit digital rate multipler that provides an output pulse rate that is the clock-input-pulse rate multiplied by 1/16 times the binary input.... Its an old chip that isn't as easy to get as many of other 4000 friends, mostly because these days I think sane people use PICs to "perform arithmetic operations"

I'm sure a tiny amount of code could do what I'm doing in this vid, but, I only use computers to look at pictures of other peoples synths ;-P

The module in the middle is the Pattern Gnerator, the four switches set the binary input number & it has a clock & clear input. The other two modules are the Clock Divider (D)Mux on the right & the Varilogic II on the left."

Neural Pattern Generator Pt. 2


"Same basic set-up, but now the Pattern Generator is getting a Clear pulse from the 512 division of the main clock. A little bit of Long Division always helps.

I don't alter any of the logic or clock settings this time, just the sound generators & modifiers.

After I've built the "Odd" version of the mux I'm going to do another pattern generator but with logic inputs instead of switches :-D

As usual, sorry about the damned bird noises!!! I swear I don't even notice them at the time, the mic in this cam. appears to be optimized for 'sunnyday chirping' frequencies!"

Clock 2 CV

YouTube via wonkythomas
"Main Clock goes to Odd Divider (D)Mux, /2 goes to Even Div. (D)Mux. Control inputs are from /16 & /32 of the main clock.

2 outs from each of the Div. Muxes are fed into mixers, combined & drive a VCOs CV input.

In addition to straight clock divisions being mixed together, 2 of the demultiplexed Odd Divisions are being OR'd together, this combination is being slewed by an Oakley Lag & a VCS with the former controlling timbre & the latter being mixed into the Pitch CVs.. this is where the bendy notes come from.

The timbral modulation is just the Volatage Controlled Waveform of the Blacet VCO."

Clock 2 Seq

"Same as before, but now Odd & Even Divider (D)Muxes are being controlled by seperate sets of divisions of the main clock & the CV created by mixing the various pulses together is being quantized by a Miniwave.

Its much like a Binary Zone... but with a differant feel because of the odd divisions.

The cam. is sitting in front of the breadboarded output / LED buffers for the Odd Divisions; the green & red are straight off the demultiplexer, the purple is the OR of two of the other outputs."

Clock Seq CV Reset

" Another VCO is added, both are getting the same Quantized Pitch CV.

After about 30secs I don't alter the mix of pulses, but, there is one important addition to this patch, in fact one of my favourite techniques at the moment.

I tap off the Pitch CV & feed that into a 2 Bit ADC which takes a 0-10V signal & outputs two digital signals depending on the voltage. These two digital outs control the Reset Inputs on the Divider (D)Mux modules. So:

CV = 0V; neither Divider is reset,
CV = ~2.5V; the Even Divider is reset,
CV = ~5V; the Odd Divider is reset,
CV = ~7.5V & Both are reset.

After about 45secs into this vid I start altering the Offset voltage for the ADC, this voltage is combined with the incoming CV (our mixed down & quantized clock pulses) so the CV sequence changes the CV sequence = hours of fun for the whole family... so long as your family likes poppers & wigging out to squiggly voltages XD"

Clock Seq End Drum

"On & On... bass drum being triggered by the VCS End Out Pulse.

Shows the CV to Digital module in action; the Red & Green LEDs which flash more or less depending on whats happening with the sequence. Everything interacts with everything now. Change one of the amounts of Divided / Multiplexed / DeMultiplexed clocks being mixed into the quantizer & the divisions change, which changes what gets mixed in... happy mediums are arriveed at, iterations occur, wobble & drum are interlinked....

.... sometimes it might even sound musical!"

SHIFT LATCH SLOPE

YouTube via wonkythomas
"Psuedo Random bit from the CGS Digital Noise sets a latch & triggers the Voltage Controlled Slope which resets the latch. 808 bass clone booms into the Bi-N-Tic switched capacitors & is smashed to pieces by the Wave Multiplier. 2 VCOs are modulated & modulate.

This noodle started off testing a little cct. I pieced together to give me End Of Cycle pulses from my fixed Attack, Decay generators... it works really well! & also produces a nice offset & inverted version of the envelope! 2 FOR 1!! I love a bargain me!

The rapid fire pitch modulations, or, 'big stoopid gabba-ish kick drums' were created by feeding my CMOS Binary Multiplier Pattern Generator (the one with the green LED & red/blue capped switches) into a Frequency Divider via the Blacet Binary Zone clock input / output. The BZ senses tiny fluctuations in the input signal & amplifies the crap out of them which in turn get chopped up by the /1.5 & /3 outputs of the Divider. Note; the pattern changing the pitch (slowly) is the same pulse signal creating the (super fast) pitch modulation 'kick drums'

More 2 for 1!!!!!"

Why I Frac pt1

YouTube via wonkythomas
"Just a quik patch showing off 1(!) Blacet Research VCO, Binary Zone, Klangwerk, EG1, Window Comparator & Micro LFO. Little bit of seq'ing from the doepfer / MFB system, but all the sounds are Blacet!

I love this system so much & only half of it is up & running! With the VCO/MiniWave/Binary Zone combination a basic oscillator can make several 'voices' at once with ease.

Here the Klangwerk Balanced Modulator is working as a VCA, Binary Zone as a Frequency Divider creating octaves lower than the VCO. The high pitched sound is the Voltage Controlled waveform being modulated by a gated Micro LFO, the changes in dynamics are down to the Klangwerk being able to smoothly fade between processed signal & the clean input signal, when deployed as a VCA this creates a pretty unique performance control."

Why I Frac pt2

CMOS DRUMS Pt.1

YouTube via wonkythomas

"Messing around with a few new modules. Most of the sounds are the MFB Drum 02 - super simple, 5 drums made out of CMOS inverters; sounds so good.

Controlling everything is my new Divider / Sequencer (bottom left) which divdes the main clock, also using the 4ms RCD (out of shot) to trigger stuff. I don't have much logic at the moment so I'm using a few differant methods to combine gates / triggers.

1 drum is controlled by two gates being processed by the Phase Comparator inside the Doepfer A-196 PLL. Some gates are combined in the A-172 Min/Max, some more in a 3P polarizing mixer. I also have an A-167 Comparator in the mix, the sum voltage fed into the min/max & the gate out controls the direction of the sequencer; you can see it toggling back & forward between the last 2 & first 2 steps (green LEDs)

One of the things that I love about VC is once you have all these processed highs & lows flying about, you can take a voltage & feed that back into the main clock... I think it was the Min. voltage from the min/max.... the CV output of the 196 PLL is in there as well somewhere, as well as a random voltage from the MFB Dual LFO controlling the Decay time of the "synth" sound that comes in...

The MFB modules have plain silver panels... because of the board mounted sockets on them I have to replace the whole panel when I convert to banana format.

All the drum sounds are processed by the Toppobrillo Triple Wave Folder; for extra wood!"

CMOS DRUMS Pt.2


"More fiddlin'

Half way thru I start messing with the comparator settings which ripples out thru the logic chain & alters the patterns... there's abit of luck involved in getting stuff locked in, doesn't always work & its pretty easy to F*! everything up by messing around too much... not to self; ALWAYS RECORD!!!!!!!!!"

1 Clock Logic

YouTube via wonkythomas.

follow-up to this post.

"1 40106 Clock drives a bunch of computer shit!

The 4024 is providing differant divisions to differant NAND Gates. The 4017 on the far left is doing a kind of off-on function.

Speeding up & slowing down the master clock changes the output from video game-ish sequences we can see being played on the 4024 LEDs (lower down, to the right X3) The knob in the middle (Blue) controls the 4023 processor, all the way CW it sounds like a cheap LPF! Turning it CCW lowers the freq. & increases 'clickyness' until things start to sound like overly granulated shards.

This is basically the same patch as the previous video, but, I've patched the 4023 in & the last one used 2 differant 40106 clocks, here I used another division from the 4024 in place of the seperate oscillator."

BugBrand CTL1 ROUND 1... FIGHT!!!

YouTube Uploaded by wonkythomas on Mar 11, 2011

"narco-tech noodle with the just arrived BugBrand TSVS. Pittsburgh Modular Timetable is controlling all the envelopes... 1 Fixed Rate Clock."

Power Starve - XOR - VC Comparator Pt. 1

YouTube via wonkythomas

"My riff on the Power Starve CMOS VCO. Two 40106s have their power pins fed by a combination of Pot, input & attenuated inputs. Each 40106 has 2 RC oscillators created from 4 of the 6 inverters. The 4 oscillators are fed into a 4030 Exclusive OR chip for digital Ring Mod. The module has 3 outputs being 3 differant combinations of XOR'd signals.

The only downside to the Power Starve CV input set-up is compared to other CMOS modules the output is quite low. So, I borrowed an idea from Tom BugBrand - run the output thru a comparator! This gets the levels back up to the rail-to-rail swing we know & love in out lunettas :D

In these vids I'm tricking the basic idea out a little... instead of a standard, static comparator I'm using a voltage controlled version, adapted from Ken Stones Gated Comparator module (which is an amazing piece of synth!) The VC input is what gives rise to the gated / tremelo fx we can hear, this especially great in the lunetta because everything is interelated; a clock, divider, counter & logic create the "CVs" to drive the VCO & I tap differant parts of the patch to feed the CV input on the comparator; noisy sequence fun!!!"

Power Starve - XOR - VC Comparator Pt. 2


"More of the same as the previous; the variable threshold comparator is great for breaking up the signal into shards. Super!"

Clay Pot Automata

YouTube via wonkythomas
"More LDR Clock / Binary triggering feedback looping drones with slappy noises...

CGS Bi-N-Tic with VCS in the feedback loop, being folded by the CGS Wave Multipler.

Batteries died after 57secs & there is some wierd fx :-|
I will include a link to a proper mp3 in the next video :-D"

4ms Rotating Clock Divider

YouTube via wonkythomas
"4ms RCD in Banana Frac format!!!
Yes! That is correct. Dann @4ms hooked me up with an RCD board, no panel etc. So, if you plugged your Euro RCD in backwards a little while ago THANK YOU!!!! Cos after it was fixed I bought it :D

This thing is way more fun than any module should legally be!

The "voice" here is two Blacet VCOs VC Waveforms, which are crossfaded, sometimes at audio rate, being sequenced by a combination of 2 Binary Zones, a Mini-Wave w/ scale quantizer & a Doepfer 156 Dual Quantizer - a little OTT.

The RCD takes the main clock (MFB Dual LFO squarewave) & spits pulses every which way. The 8008 is being triggered by a bunch of RCD outs run thru the Doepfer 152 sequential switch section.

Metalbox Dual AD is also getting triggered by the RCD & is CVing the CGS Wave Multiplier.

The combination of VC Waveforms, Crossfading & Wave Folding really peals my potatoes, just an absurb timbral range. FM the VC Mixer, modulate the harmonic content of the VCOs waveforms, wobble the folds... oh my days."

Divide By MUX

YouTube via wonkythomas

"My... ahem... version... cough... of the 4ms Rotating Clock Divider Euro module.

Instead of fancy digital stuff (technical term) I just threw some shit at the wall... I mean CMOS together & got a cheap & nasty version going!! Too much fun... I have no idea what happened to the hour after I grabbed this quick video...

Chip count = 4 ICs & 2 of those are TL072s for input comparators. Clock, Reset & two Digital Control Inputs. I'm going to make a CV version when my LM3900s from F'Lec get here. But, for now this will do.

4 Outputs, each one puts out a differant division of the input clock, only one output at a time depending on the states of the the 2 Control Inputs. In the vid the main clock goes to the divider & 2 divisions go to Control A & B, the main clock is being divided by the multiplexer. Output 1 is /16, Out 2 = /8, Out 3 = /4 & /2 comes out of output 4.

Super fun stuff!! Now I just need to make a panel for this & my Grant Richter Neuron Pattern Generator & clean up all these damned croc clips!!!"

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