Joined: Feb 02, 2010 Posts: 266 Location: California
Posted: Fri May 21, 2010 11:53 am Post subject:
ok... here is this thing I have been working on... not exactly a "Lunetta" in the pure patchable modular sense, but it does use all cmos chips, including for the LFO and filter (4069).
There is 7 audio oscillators there. There is the option to play any/all seven of them on any step, but right now the LEDs are sucking too much current on the steps, so it won't fire more than one osc. I need to put in bigger current limiting resistors on the LEDs and that should be taken care of (it was working for playing chords on steps before I wired up the LEDs). Unfortunately, that will make my blinky lights not as bright...
It's not in a box yet and needs a few more knobs for the bare pots (the red things are the pots for the oscillators). Also, plan on putting home made switches in to manually trigger the oscillators (that's what the double row of empty holes is for... but more or less it's working.
Joined: Feb 02, 2010 Posts: 266 Location: California
Posted: Fri May 21, 2010 12:26 pm Post subject:
Thanks Rich and thanks for the suggestion about the LED buffers. The resistor I have in there is pretty small now (<1k), so I will try something a little bigger and if it doesn't help without diminishing the intensity of the LEDs too much, I will try the transistor method... have to say I am not too crazy right now about the thought of wiring up 17 transistors (or maybe I could use just one for all of the step LEDs, since only one is active at a time?), I've been working sort of feverishly on this for the past two weeks...
Making this thing has been pretty fun though, coming up with ways to construct it on the cheap while also having all the features/usability and looks that I wanted it to have. I'm planning to use it for a couple shows I am playing next week.
I've got the bug now though this stuff is too much fun... there might be a couple more of these buddies coming along that will all sync up... uh oh!
Joined: Feb 02, 2010 Posts: 266 Location: California
Posted: Sat May 22, 2010 2:53 am Post subject:
Alright...
Here it is just a step away from being totally done. I am planning on putting some aluminum trim around the front border to mask off some of my poor plexi cutting skills, but other than that, here it is, with the resistor issue fixed, fit into a box, and dressed up real pretty...
I like the creative use of materials like the knobs. For a moment I guessed the gold colored knobs might be touch contacts but reading back on your previous posts an realised they were pots as well. Nice!
Joined: Dec 05, 2009 Posts: 78 Location: New York City
Audio files: 1
Posted: Sat May 22, 2010 9:33 am Post subject:
Top Top wrote:
Alright...
Here it is just a step away from being totally done. I am planning on putting some aluminum trim around the front border to mask off some of my poor plexi cutting skills, but other than that, here it is, with the resistor issue fixed, fit into a box, and dressed up real pretty...
Joined: Feb 02, 2010 Posts: 266 Location: California
Posted: Sat May 22, 2010 1:29 pm Post subject:
electri-fire wrote:
I like the creative use of materials like the knobs. For a moment I guessed the gold colored knobs might be touch contacts but reading back on your previous posts an realised they were pots as well. Nice!
I didn't know what I was going to use for those ones but just found a bag of wood drawer handles last weekend at the thrift store. The red things are big "ruby" plastic beads that I drilled out. I have some knobs on hand, but this thing needed something more special.
A good portion of the front panel stuff is reused or surplus stuff. I scored a while ago and got a big sheet of white plexiglass that was partially warped for free. I got the wood and all the "gems" from the same place. There is a great art surplus/junk store here that I am always scouring for stuff to use for builds.
textual wrote:
Very Cool! love the chords.
Thanks man. This thing is addictive to play with. It is like a krautrock band in a box.
Joined: Feb 02, 2010 Posts: 266 Location: California
Posted: Sun May 23, 2010 4:54 pm Post subject:
Hi guys thanks for looking and also thanks a lot for answering my questions when I was getting going in the "simple arpeggiator" thread.
Well it turned out a little less simple... I may actually still build something that is preset to do arpeggios of different chords when you press down a chord button (sort of like on some electronic organs)... but this thing is a lot more flexible and very fun.
Ok one last video to show you it with the aluminum trim and these little "game pieces" I made for the switch blades - they are just wood with a slot cut for a little piece of aluminum. They make it much much easier for my fumble fingers to use on the fly to rearrange patterns, and they look cooler than the little tabs of aluminum that were on there before.
Im new to lunetta's, just discovered this forum a couple days ago. Im kind of overwhelmed with the work already done here, great community! It was really easy to find good and clear information and schematics, thanks!
I already built a wsg so i know a little about the 40106 and oscilators. After seeing the designs by droffset and electri-fire I took the plunge and just ordered my first set of cmos chips and supply's. If there is a need for one ill make a total beginner thread and everyone can follow the progress.
/.../ I just ordered my first set of cmos chips and supply's. If there is a need for one ill make a total beginner thread and everyone can follow the progress.
Please do. Needed or not, I always enjoy that sort of stuff.
Welcome tjookum! I'm very glad that you've found this thread, with it being of interest to you as well!
interest? Man, Im loving it. Ive been a big experimental electronics fan for years, mostly breakcore and other harder genres. Ive tried djing and producing on computers but with all the samples and options I just got more and more confused and frustrated. Bleeps and bloops are just way more fun.
p.s.: anyone else interested in early electronic music? This track by raymond scott from 1959(!) started it all for me: http://www.youtube.com/watch?v=1SHJ6CcML80 _________________ There he goes. One of God's own prototypes. A high-powered mutant of some kind never even considered for mass production. Too weird to live, and too rare to die.
Hunter S. Thompson movies noise
Joined: Apr 04, 2009 Posts: 420 Location: united kingdom
Posted: Thu Jun 03, 2010 5:45 am Post subject:
Quote:
Man, Im loving it. Ive been a big experimental electronics fan for years, mostly breakcore and other harder genres. Ive tried djing and producing on computers but with all the samples and options I just got more and more confused and frustrated. Bleeps and bloops are just way more fun.
p.s.: anyone else interested in early electronic music?
I've got loads of software synths, samplers and samples. I've got software coming out all over the place but the problem is I got less creative with it. It got boring thats why idecided to go to hardware but this time make my own.
Love the old electronic music from the 50s especially the incidental music to the film Forbidden Planet. Grew up in the seventies and eighties and remember the BBC Radiophonic workshop really well especially the old home computer show music of the eighties and anything sci-fi the BBC did. All had electronic music in them and all done in house.
[editor's note: Put in the quote bbcode to improve readability --mosc]
After waiting next to the mailbox for days now (can't help it, I get way too excited) the parts arrived today!
The rather plain looking package contains:
10x 40106
10x 4011
8x 4017
10x 4040
10x 4093
10x 4024
And a LOT of other stuff.
Straight away I started with a 40106 osc ->4040 -> 4051 waveshaper thingie. It totally rocked! Seeing it here it all looks really complex and I couldnt get my head around it, but just half an hour of breadboarding and it all seems a lot clearer. This stuff is bulletproof, after the + and - connections you really cant go wrong, every patch i made was amazing!
Beacause I just really like pictures:
HPIM1596.JPG
Description:
time for a bigger breadboard...
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1.4 MB
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171 Time(s)
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_________________ There he goes. One of God's own prototypes. A high-powered mutant of some kind never even considered for mass production. Too weird to live, and too rare to die.
Hunter S. Thompson movies noise
I agree RF, Ill get into recording when I have more to show for.
Finished my first module today! It doesn't really compare to some other stuff here, but it works and im quite happy with the design.
It's a 40106 with 4 oscilators, 3 audible and a LFO.
I guess I would better start my own topic and stop spamming this one, next up: 4040 and 4051.
HPIM1600.JPG
Description:
40106 osc
Filesize:
1.37 MB
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160 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.
_________________ There he goes. One of God's own prototypes. A high-powered mutant of some kind never even considered for mass production. Too weird to live, and too rare to die.
Hunter S. Thompson movies noise
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