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2012 Build Pictures
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vladosh



Joined: Aug 02, 2010
Posts: 406
Location: macedonia
Audio files: 3

PostPosted: Mon Apr 02, 2012 3:02 pm    Post subject: Reply with quote  Mark this post and the followings unread

Thanks JingleJoe ! i plan to work on the artwork ,when i spend so much time on the electronics it's a shame not to finish it good-looking .
greetings
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mosc
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PostPosted: Mon Apr 02, 2012 3:19 pm    Post subject: Reply with quote  Mark this post and the followings unread

JingleJoe wrote:
vladosh wrote:
This is the synth so far, very much ghetto style

Thats the best style of all, because it means you are probably putting function over form Wink


    It is the pervading law of all things organic and inorganic,
    Of all things physical and metaphysical,
    Of all things human and all things super-human,
    Of all true manifestations of the head,
    Of the heart, of the soul,
    That the life is recognizable in its expression,
    That form ever follows function. This is the law.

    Louis Sullivan

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richardc64



Joined: Jun 01, 2006
Posts: 611
Location: NYC
Audio files: 25

PostPosted: Mon Apr 02, 2012 3:27 pm    Post subject: Reply with quote  Mark this post and the followings unread

vladosh wrote:
This is the synth so far...

I love that they all have a different look. That's one way to differentiate functions.

You might need to eventually do something about the top sagging of the 2nd unit from the top.

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inlifeindeath



Joined: Apr 02, 2010
Posts: 315
Location: Albuquerque, NM

PostPosted: Mon Apr 02, 2012 4:54 pm    Post subject: Reply with quote  Mark this post and the followings unread

Finished L-1's Quad VCA, sounds awesome!
I used TL074s, OPA2604s (from ebay), and (2)2180As and (2)2180Bs. I applied L-1's suggestions (thanks again) for adapting to banana plugs, works fantastic!


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vladosh



Joined: Aug 02, 2010
Posts: 406
Location: macedonia
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PostPosted: Mon Apr 02, 2012 5:00 pm    Post subject: Reply with quote  Mark this post and the followings unread

Thanks richardc64 ,as usual it's always work in progress ,that rack hasn't got fixated top actually ,don't know why ,that's why it's like that ..
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Cynosure
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Joined: Dec 11, 2010
Posts: 657
Location: Toronto, Ontario - Canada
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PostPosted: Tue Apr 03, 2012 5:43 am    Post subject: Reply with quote  Mark this post and the followings unread

@inlifeindeath - very cool looking panel. Did you design it?
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inlifeindeath



Joined: Apr 02, 2010
Posts: 315
Location: Albuquerque, NM

PostPosted: Tue Apr 03, 2012 12:07 pm    Post subject: Reply with quote  Mark this post and the followings unread

thanks cyno! i did the layout in photoshop but the artwork is done by an artist named Raymond Pettibon. The text in the corner reads "I want the girl in the wig commercial" haha
This is the first finished module of the new rack I built. I'm using the lamination technique and am going for more colorful, artful panels.

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fonik



Joined: Jun 07, 2006
Posts: 3755
Location: Germany
Audio files: 23

PostPosted: Wed Apr 04, 2012 2:36 pm    Post subject: Reply with quote  Mark this post and the followings unread

inlifeindeath wrote:
Finished L-1's Quad VCA, sounds awesome!

and looks awesome!

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matthias
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fonik



Joined: Jun 07, 2006
Posts: 3755
Location: Germany
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PostPosted: Wed Apr 04, 2012 2:39 pm    Post subject: Reply with quote  Mark this post and the followings unread

slow progress is still progress! current state of my latest cabinet:

4th cabinet 07

from left to right, from top to bottom:

binary game sequencer (fonitronik)
simple quantizer (boogdish)
dual x-4046 VCO (thomas henry)
voltage controlled x-panner (fonitronik)
versatile comparator (fonitronik)
dual woggle bug (grant richter)

MIDI2Clock (dave kendall)
EFM 3634 noise/sample&hold (tom gamble)
V-Meter/cable tester (fonitronik)
Combo speaker module (fonitronik)

simple divider (fonitronik)
attenuverting mixer (fonitronik)
breakdown 8-stepped multimode filter (fonitronik)

the hole will be filled with a 2nd speaker module and most likely a reverb module...

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sduck



Joined: Dec 16, 2007
Posts: 441
Location: Nashville
Audio files: 5

PostPosted: Wed Apr 04, 2012 9:22 pm    Post subject: Reply with quote  Mark this post and the followings unread

Wow Fonik - that's some amazing stuff! I also have dual wogglebug - once you have 2 one is never enough. And that stepped filter thing looks very very tempting - is the pcb available for that, or is it a bunch of stuff cobbled together?

Just finished this -

Korgasmatron front

Korgasmatron back

David Dixon (AKA Dr. Sketch-n-etch on Muffwiggler) supplied me with a hand etched pcb, and some wiring ideas, and this is what happened.
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fonik



Joined: Jun 07, 2006
Posts: 3755
Location: Germany
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PostPosted: Thu Apr 05, 2012 7:40 am    Post subject: Reply with quote  Mark this post and the followings unread

sduck wrote:
And that stepped filter thing looks very very tempting - is the pcb available for that, or is it a bunch of stuff cobbled together?


it is basically eight (8!) sem style multimode VCF PCBs, and a controlle board containing a sequential switch and a stereo mixer.
i am currently working on a smaller 4 filter version, everything on one PCB, and using VCAs instead of analog switches to eliminate the "pop":
http://electro-music.com/forum/topic-46509.html

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frijitz



Joined: May 04, 2007
Posts: 1710
Location: NM USA
Audio files: 54

PostPosted: Thu Apr 05, 2012 12:33 pm    Post subject: Reply with quote  Mark this post and the followings unread

mosc wrote:

That form ever follows function. This is the law.
Louis Sullivan

Except in the commercial modular synth world, where you are strictly constrained by size restrictions, knob type, panel graphic style, you name it. All modular manfacturers force you to change your design/features.

Ian
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MR-808



Joined: Sep 30, 2010
Posts: 28
Location: Portland, OR

PostPosted: Sat Apr 07, 2012 3:59 pm    Post subject: Reply with quote  Mark this post and the followings unread

frijitz wrote:
mosc wrote:

That form ever follows function. This is the law.
Louis Sullivan

Except in the commercial modular synth world, where you are strictly constrained by size restrictions, knob type, panel graphic style, you name it. All modular manfacturers force you to change your design/features.
Ian


I'd say it applies to the DIY world as well. I have a 5U system, and leaving large blank spaces on a panel seems criminal. So I often find myself adding or deleting features based on the panel layout.

Last night a friend was showing me a pcb layout he's working on. I asked him where the front panel design was. He said he hadn't really thought about yet. I told him he was putting the cart before the horse - without a front panel, how could he know what features to include, or how many copies of the circuit are needed? :( Luckily he saw the error of his ways and is now working on a panel layout. :)
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frijitz



Joined: May 04, 2007
Posts: 1710
Location: NM USA
Audio files: 54

PostPosted: Sat Apr 07, 2012 4:19 pm    Post subject: Reply with quote  Mark this post and the followings unread

MR-808 wrote:
frijitz wrote:
mosc wrote:

That form ever follows function. This is the law.
Louis Sullivan

Except in the commercial modular synth world, where you are strictly constrained by size restrictions, knob type, panel graphic style, you name it. All modular manfacturers force you to change your design/features.
Ian


I'd say it applies to the DIY world as well. I have a 5U system, and leaving large blank spaces on a panel seems criminal. So I often find myself adding or deleting features based on the panel layout.

Last night a friend was showing me a pcb layout he's working on. I asked him where the front panel design was. He said he hadn't really thought about yet. I told him he was putting the cart before the horse - without a front panel, how could he know what features to include, or how many copies of the circuit are needed? Sad Luckily he saw the error of his ways and is now working on a panel layout. Smile

That's why I've never used modules. Everything goes behind 19" rack panels. Then you just have to scrunch things up a bit or spread them out to make all your features fit. Form following function.

Ian
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PHOBoS



Joined: Jan 14, 2010
Posts: 1640
Location: Moon Base
Audio files: 332

PostPosted: Sun Apr 08, 2012 6:28 am    Post subject: Jingler Reply with quote  Mark this post and the followings unread

just finished the 'Jingler" Cool
more info in this thread.


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Cynosure
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Joined: Dec 11, 2010
Posts: 657
Location: Toronto, Ontario - Canada
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PostPosted: Sun Apr 08, 2012 6:31 am    Post subject: Reply with quote  Mark this post and the followings unread

Phobos - your cases are awesome. Great work on this one too!
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Cynosure
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Joined: Dec 11, 2010
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PostPosted: Sun Apr 08, 2012 4:27 pm    Post subject: Megatron
Subject description: Modified Korg Monotron
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My goal with this project was to create a MIDI and voltage controlled bass synth similar to the Minitaur, Mopho and Microcon, while keeping the ribbon control from the Monotron.

Mods include:
-MIDI-IF kit
-CV control
-Pulse Wave (with PWM, high-pass filter and low-pass filter)
-Sub Osc 1 (one octave down) with low-pass filter
-Sub Osc 2 (2 octaves down) with low-pass filter
-AD Envelope
-Overdrive feedback loop.

More info and schematics here http://www.jacobwatters.com/monotron-mod.php



Total cost for the entire project was about $150.


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Megatron from the front.
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Megatron from the side. Nice fake wood side panels.
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PHOBoS



Joined: Jan 14, 2010
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Location: Moon Base
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PostPosted: Mon Apr 09, 2012 4:55 am    Post subject: Reply with quote  Mark this post and the followings unread

looks and sounds great Cyno thumright
I think you made yourself a very usefull synth there.

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mrkva



Joined: Jan 25, 2012
Posts: 41
Location: poland/slovakia/netherlands

PostPosted: Wed Apr 11, 2012 2:27 am    Post subject: Reply with quote  Mark this post and the followings unread

Awesome projects guys!
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emdot_ambient



Joined: Nov 22, 2009
Posts: 669
Location: Frederick, MD

PostPosted: Wed Apr 11, 2012 6:43 am    Post subject: Reply with quote  Mark this post and the followings unread

frijitz wrote:
That's why I've never used modules. Everything goes behind 19" rack panels. Then you just have to scrunch things up a bit or spread them out to make all your features fit. Form following function.

That's what I'm doing on my first several panels. Thing is with that, it really multiplies the amount of time and effort you have to put into PCB choice and their order on the panel, as you can't later decide to move the individual pieces around once they're behind a big honking panel.

So pre-planning and certainty becomes critical.

"Form follows function", though, does not mean you grow your panels to fit all functions possible. Design of anything is always a process of tradeoffs and compromises between functionality, available/practical size and cost.

Limiting what functions you include on a panel is simply part of the selection process in determining Function in the Form vs Function equation.

Classic example: the Minimoog. There are definitely functional tradeoffs going on in its design.:

    *No random access to waveforms (you have to select waves from a rotary switch moving from one to the next until you get to the one you want).
    *Mixing of one oscillator's waveforms to create a hybrid a waveform is not possible (ARP, OTOH, had mixers on even its AXXE synths so you could blend triangle and pulse together)
    *Only VCO 3 could be used as a modulation source.
    *Signal routing was hardwired VCO=>VCF=>VCA with no ability to alter this with patch cords (like the Korg MS series allowed, or the ARP 2600)

And so on. But after that selection of functionality was set in stone, the Form of the Mini is obviously well thought out and serves to maximize Functionality.

...wait a minute...what was this thread about? geek

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mrkva



Joined: Jan 25, 2012
Posts: 41
Location: poland/slovakia/netherlands

PostPosted: Wed Apr 11, 2012 2:01 pm    Post subject: Reply with quote  Mark this post and the followings unread

http://www.youtube.com/watch?v=yJUSO9f5a94&feature=youtu.be
Here is a little test of my modular Smile
Q&D VCF, some triangle LFO's and CMOS 4069 VCO

(how do I embed the youtube video?)
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frequencycentral



Joined: May 25, 2008
Posts: 186
Location: UK

PostPosted: Thu Apr 12, 2012 2:54 pm    Post subject: Reply with quote  Mark this post and the followings unread

'LoopEnv'

http://www.muffwiggler.com/forum/topic-51707.html

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EdisonRex
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Joined: Mar 07, 2007
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Location: London, UK
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PostPosted: Sun Apr 15, 2012 3:39 pm    Post subject: Reply with quote  Mark this post and the followings unread

Here's a Thomas Henry SN-Voice I had kicking around with no panel for a while, I finally made up a panel and wired it last week over the bank holiday weekend. It worked on power up, so that was a good thing. Wink


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Thomas Henry SN-Voice MOTM size
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Thomas Henry SN-Voice rear view
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mosc
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Joined: Jan 31, 2003
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PostPosted: Mon Apr 16, 2012 11:03 am    Post subject: Reply with quote  Mark this post and the followings unread

Looks great, EdisonRex, but they never work on first power up; it's against natural law. Time to call in an exorcist.

Let us pray

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Cynosure
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Joined: Dec 11, 2010
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Location: Toronto, Ontario - Canada
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PostPosted: Mon Apr 16, 2012 6:50 pm    Post subject: Reply with quote  Mark this post and the followings unread

Looks great Paul. I'm still waiting to hear it.
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