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-minus-
Joined: Oct 26, 2008 Posts: 787
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Draal
Joined: May 18, 2010 Posts: 308 Location: Oak Park, IL
Audio files: 5
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Posted: Sun Jun 16, 2013 12:59 pm Post subject:
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Holy Shz!t! Awesomeness!
When time permits, tell us what's in the craft.
Edit: I see all the goodies now that I blew up the pic! _________________ Zontar Prevails! |
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blue hell
Site Admin
Joined: Apr 03, 2004 Posts: 24075 Location: The Netherlands, Enschede
Audio files: 277
G2 patch files: 320
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Posted: Sun Jun 16, 2013 1:14 pm Post subject:
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-minus- wrote: | Got my logic synth finished... |
That looks great! _________________ Jan
also .. could someone please turn down the thermostat a bit.
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-minus-
Joined: Oct 26, 2008 Posts: 787
Audio files: 13
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Posted: Sun Jun 16, 2013 2:29 pm Post subject:
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Hey thanks!
The modules are the usual suspects .
Top row:
40106 OSCILLATORS
The 6 on a single IC trick. With 3 way toggle switch High, Medium, Low cap switching. I seem to use them more than I imagined although I've only been playing around with this for a day.
4040 DIVIDER
An interesting chip although it needs all its outputs and clock inverted to be useful, particularly if you want to trigger drums. I used two 40106 ICs to do this.
AND/NAND/XOR GATES
The AND seems to be useful. NAND is not as easy to wrap your brain around. Well, not for me anyway. But with the NAND other gates can be made so I put it in there. The XOR is nice for ring modish sounds and drones.
PERCUSSION
I originally was going to use the Korg Monotribe circuits. I made them up and tweaked them somewhat. Got the snare and an open and closed hat sounding quite good. But in the end I used the Paia Drum Tone circuit. The drums can be a little tribal sounding for my liking. I did manage to fiddle a bit and make a heavier kick from a duplicate of the synth drum component. I put six of the Ken Stone Gate to trigger circuits on the inputs just to clean things up. There are two big stripboards behind that panel! It's a handy module to have, kind of like a sketch pad to doodle some rhythms with. It seems to turn 30 minute 'shifty sessions' into something almost musical. The drums are Snare, Clave, Wood Block, Synth Drum, Conga, High Tom, Low Tom (the original bass drum), and the modified synth drum Bass Drum I have six other gate to triggers on the panel below which will be used for nicer external drums.
MELODY GENERATOR/LOWPASS FILTERS
The classic Melody Generator, just for old times sake. And the WSG filters below. I don't seem to use the melody generator much so far. I think the 4046 oscillators are a lot more useful. The filters are handy though. I'll probably turf this panel out and do something different. Maybe make the filters voltage controlled with a home made vactrol and add a couple of triangle oscillators above.
Bottom Row:
4046 VCO's/R-2R's/GLIDE
Another well worn module. Two of each. The R-2R's are hooked up to the oscillators with a glide circuit using a LM358. These are getting used a lot. There's a range switch on each one too. The LFO mode goes very slow which is useful for random clock tempos.
DECADE COUNTER
Standard 4017 decade counter.
4015 SHIFT REGISTER
Chained into 8, with a loop switch and (pseudo) random option using a XOR IC. Good for throwing in hippy drum rolls on those toms while the 4040 controls the other drums.
4066 SWITCHES/4013 FLIP FLOPS
The 4066 isn't being used much at all at the moment. Most of these circuits had been sitting bagged up in a box for almost three years. When I pulled them out I culled most of them and had to rebuild the others with protection diodes and mounting holes. I thought the 4066 was some sort of VCA . You can't really feed audio through it. An AND gate seems to do the job so these will go. The 4013 is fun!
GATE TO TRIGGER/ADAPTERS
Both of these are Ken Stone circuits built on stripboard. Six gate to triggers, and three stomp box adapters. The adapters are essential if you want to hook effects up. I originally just had a 6.5MM socket wire to a banana socket, but things weren't meant to be that easy.
PANNING MIXER
MFOS panning mixer. Four channels in. Headphone output and two 6.5MM mono sockets L & R. A great little mixer! Four channels seems to be enough.
The case was made from Tasmanian oak bought off the shelf at the local hardware. The rounded corners were done with the same timber but the stuff you use around skirting. It was hand sawn and nailed together. Gave it about twelve coats of enamel paint, sanding with wet and dry paper between coats.
The synth runs on a 12V AC adapter/wall wart going to a +/GROUND/- board I bought as a cheap kit from Jaycar. I'm amazed it runs all this stuff! Calculating current and what not is a bit much for me. I wanted 10 panels. I pushed my luck at 12 and crossed my fingers! I'll have to learn about this when it comes to powering the pile of other circuits I have bagged up here.
It was painful making this thing. It was nowhere near what I had drawn up. I had massive problems with the panel art. I printed onto Alumajet, the white faced metal, but the colours were coming out streaky and weak. About the only colour which would print was black, as long as the line work was minimal. A lot of work drawing spaceship panels was wasted and I had to redesign everything to suit the limitation of the panel printing, hence the overall white look. It was disappointing in that regard but it ended up looking passable. I'll be rethinking the panel making method for the modular...
I'll do some recording over the next day or so and post in the appropriate section. I see the real potential of the logic synth is in its ability to create complex patterns to sequence other things.
So finally I get to escape Lunettaland... or do I?
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Inventor
Stream Operator
Joined: Oct 13, 2007 Posts: 6221 Location: near Austin, Tx, USA
Audio files: 267
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Posted: Sun Jun 16, 2013 9:37 pm Post subject:
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That is beautiful, and nice selection of circuits too!
Les _________________ "Let's make noise for peace." - Kijjaz |
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RingMad
Joined: Jan 15, 2011 Posts: 427 Location: Montreal, Canada
Audio files: 4
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Posted: Mon Jun 17, 2013 3:10 am Post subject:
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Looks great, -minus-! Even if it didn't turn out as you had planned. I like the logic symbols wirh the LEDs in them. And I'm always impressed when people do the circles like you did for the divider & counter.
-minus- wrote: | So finally I get to escape Lunettaland... or do I? |
Probably not! You'll play with this and want to make a brother or sister for it with different circuits!
James. |
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richardc64
Joined: Jun 01, 2006 Posts: 679 Location: NYC
Audio files: 26
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Posted: Mon Jun 17, 2013 5:47 am Post subject:
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Beautiful work -minus-. Love the rounded corners. Panels with logic symbols look better than "passable." _________________ Revenge is a dish best served with a fork... to the eye |
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PHOBoS
Joined: Jan 14, 2010 Posts: 5581 Location: Moon Base
Audio files: 705
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trav
Joined: Sep 11, 2012 Posts: 108 Location: Auckland
Audio files: 16
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Posted: Mon Jun 17, 2013 2:09 pm Post subject:
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-minus- wrote: | 4066 SWITCHES/4013 FLIP FLOPS
The 4066 isn't being used much at all at the moment. Most of these circuits had been sitting bagged up in a box for almost three years. When I pulled them out I culled most of them and had to rebuild the others with protection diodes and mounting holes. I thought the 4066 was some sort of VCA . You can't really feed audio through it. An AND gate seems to do the job so these will go. |
I've found the 4066 does make a good (or at least very simple to build) VCA, as described in the A VCA of sorts thread. But with a digital signal into the CV it will just act as an AND gate, so perhaps not much use in a machine with only digital outs.
Anyway, a very beautiful machine it is! |
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elmegil
Joined: Mar 20, 2012 Posts: 2177 Location: Chicago
Audio files: 16
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Posted: Mon Jun 17, 2013 2:24 pm Post subject:
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A Beauty |
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analog_backlash
Joined: Sep 04, 2012 Posts: 393 Location: Aldershot, UK
Audio files: 21
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Posted: Mon Jun 17, 2013 3:38 pm Post subject:
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Looks great -minus- ! One of these days I'll get round to finishing mine... Look forward to hearing some sounds from it.
Gary |
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Cynosure
Site Admin
Joined: Dec 11, 2010 Posts: 966 Location: Toronto, Ontario - Canada
Audio files: 82
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Posted: Tue Jun 18, 2013 7:12 am Post subject:
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Beautiful synth minus! Let here some sound samples and/or demo videos _________________ JacobWatters.com |
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dougseidel
Joined: Feb 10, 2010 Posts: 74 Location: NJ
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-minus-
Joined: Oct 26, 2008 Posts: 787
Audio files: 13
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Posted: Tue Jun 18, 2013 3:33 pm Post subject:
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Hey thanks for the comments!
Until now I haven't really messed around much with logic paths. It was always such an effort dragging out the boards and twisting wires together for patches. It's a lot easier now I have somehow managed to finish something.
There are still a few issues to resolve. I have yet to invert the 4040 clock input, and there are a couple of sockets loose. That's one thing I won't do again: buy cheap banana sockets from ebay . I have already replaced two panels with decent quality sockets and can see the entire machine being upgraded in future.
I've been recording some sounds and will post something shortly. I need more leads! I only have about 20, which makes things somewhat limiting. Need to speak to a bank about a loan . |
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RF
Joined: Mar 23, 2007 Posts: 1502 Location: Northern Minnesota, USA
Audio files: 28
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Posted: Wed Jun 19, 2013 7:44 pm Post subject:
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Really nice minus. Does it do the Blues...?
Seriously - outstanding job.
bruce _________________ www.sdiy.org/rfeng
"I want to make these sounds that go wooo-wooo-ah-woo-woo.”
(Herb Deutsch to Bob Moog ~1963) |
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-minus-
Joined: Oct 26, 2008 Posts: 787
Audio files: 13
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Posted: Wed Jun 19, 2013 9:33 pm Post subject:
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RF wrote: | Does it do the Blues...? |
I did have the occasional CMOS Blues making it. When I figure out a 12 bar generator I'll send you a logic version of some Howlin' Wolf |
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mosc
Site Admin
Joined: Jan 31, 2003 Posts: 18195 Location: Durham, NC
Audio files: 211
G2 patch files: 60
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trav
Joined: Sep 11, 2012 Posts: 108 Location: Auckland
Audio files: 16
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Posted: Mon Jul 22, 2013 2:03 am Post subject:
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installed last module today. case is nothing special: 2x3U rack blanks for the front panel, a section of plank cut on a slight diagonal for the sides; plywood and screws cover the rest. I already have another two panel blanks for its planned sibling.
the color-coding is as follows:
black socket/green LED --> digital signal in
red socket/red LED --> digital signal out
red socket/yellow LED --> control voltage out
yellow socket/no LED --> control voltage in
green socket/green LED --> binary number in
blue socket/green LED --> clock in (where different to digital in)
and the modules are:
A. quad 4093 osc
B. 4024 divider
C. dual 4006/4070 pseudo-random bits/noise
D. 4046 pitch tracker type thing
E. dual 2-in XOR (4070)
F. 4015 dual stepped voltage generator
G. dual 4046 VCO
H. dual 3-bit r/2r
I. dual up/down/up-down stepped voltage generator (4-step and 16-step)--see this thread
J. quad 4066 VCA
K. 4-channel passive mixer
L. master volume, on/off, mono out
M. logic 1/0
N. 4051 1-of-8 selector
O. 4060 slow osc + divisions
P. 4512 digital 1-of-8 selector
Q. diatonic keyboard--see this thread
R. pentatonic keyboard--see same thread as for Q
the recording is just a quick one-take featuring a waveshaped VCO controlled by (F), a few tones from (Q) being randomly selected by (P) and (C), some noodling on (Q) thru the pitch tracker thing (D), and some digital noise (C) through a VCA controlled by (I)
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Draal
Joined: May 18, 2010 Posts: 308 Location: Oak Park, IL
Audio files: 5
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Posted: Mon Jul 22, 2013 4:50 am Post subject:
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Looks great and sounds great Feels good getting things boxed up, eh? _________________ Zontar Prevails! |
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mosc
Site Admin
Joined: Jan 31, 2003 Posts: 18195 Location: Durham, NC
Audio files: 211
G2 patch files: 60
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Posted: Mon Jul 22, 2013 2:02 pm Post subject:
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Draal wrote: | Looks great and sounds great |
What he said... _________________ --Howard
my music and other stuff |
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jcintheus
Joined: Oct 16, 2011 Posts: 59 Location: Colorado
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Posted: Mon Jul 22, 2013 2:08 pm Post subject:
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Excellent!
Great collection of modules, fantastic variation of sound.
Well done! |
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trav
Joined: Sep 11, 2012 Posts: 108 Location: Auckland
Audio files: 16
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Posted: Mon Jul 22, 2013 7:52 pm Post subject:
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thanks guys!
yep, it's a good feeling having it all soldered and boxed up. Can only hold off the bug so long, tho.... |
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Repeater
Joined: Mar 19, 2011 Posts: 13 Location: Rochester
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Posted: Mon Aug 05, 2013 5:04 pm Post subject:
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Started working on a Lunetta-esque modular synth heavily inspired by some of my favorite designs in Nic Collins' Handmade Electronic Music, Horowitz & Hill's The Art of Electronics, Forrest Mimms' Engineers Notebooks, my own happy accidents and stuff I've seen on this forum.
From left to right:
Power supply / Phase Locked Loop configured as a pitch tracker
Triple Ramp VCO
Graphic VCO / Waveshaper / Sequencer
Below is my Slim Skeevy, a random voltage generator (CV and audio).
Future modules that are either in the works or at least conceptualized:
Another PLL
VCAs
Tunable CV Keyboard (there's a basic schematic in the DIY section of my blog)
Piezo Driver/Pickup system for physical filtering ala Tudor's Rainforest (cuz VCFs are boring and complicated)
Logic/Switch/R2R Ladder/Counter/Shift Register Super Module (essentially a mini-Lunetta for driving the rest of the synth)
Currently the lid of the box is used as a sandbox area for incorporating other equipment, but I'm planning on adding more modules down there eventually as well. |
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commathe
Joined: Jul 26, 2013 Posts: 153 Location: Beijing
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Posted: Mon Aug 05, 2013 5:58 pm Post subject:
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-minus- wrote: | It was painful making this thing. It was nowhere near what I had drawn up. I had massive problems with the panel art. I printed onto Alumajet, the white faced metal, but the colours were coming out streaky and weak. About the only colour which would print was black, as long as the line work was minimal. A lot of work drawing spaceship panels was wasted and I had to redesign everything to suit the limitation of the panel printing, hence the overall white look. It was disappointing in that regard but it ended up looking passable. I'll be rethinking the panel making method for the modular... | This is easily one of the most beautiful DIY modulars I have ever seen so I wouldn't stress about it! I would love to be able to make something this attractive. |
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RingMad
Joined: Jan 15, 2011 Posts: 427 Location: Montreal, Canada
Audio files: 4
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Posted: Tue Aug 06, 2013 4:26 am Post subject:
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Looks and sounds great, trav!
It's funny though... I came into this page from the bottom and I thought at first that the yellow boxes were part of the artwork... looked pretty cool!
Meanwhile, my Lunetta is on hold whilst I deliberate about how to build this other box first. I'm wondering if I'll ever get around to it.
James. |
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