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2013 Build Pictures
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Cynosure
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Joined: Dec 11, 2010
Posts: 733
Location: Toronto, Ontario - Canada
Audio files: 42

PostPosted: Thu Jun 06, 2013 6:59 am    Post subject: Reply with quote  Mark this post and the followings unread

prgdeltablues - That is awesome. Can you provide any more details on how it works? Also, what is the part number for the LED matrix that you used?

Here is a dsPIC dev board that I put together.


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Last edited by Cynosure on Tue Jul 16, 2013 10:52 am; edited 1 time in total
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sduck



Joined: Dec 16, 2007
Posts: 444
Location: Nashville
Audio files: 5

PostPosted: Sat Jun 08, 2013 9:23 pm    Post subject: Reply with quote  Mark this post and the followings unread

I forgot to post this stuff here -

Jurgen Haible Varislope Filter/Phaser back

Jurgen Haible Varislope Filter/Phaser profile

Jurgen Haible Varislope Filter/Phaser front

I want to thank the bad producer for selling me the pcb, and providing advice and wiring help, and Dave Brown for additional modification ideas and some elements of the panel design. And of course Jurgen Haible for the brilliant design!
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elmegil



Joined: Mar 20, 2012
Posts: 1535
Location: Chicago
Audio files: 14

PostPosted: Sat Jun 08, 2013 10:21 pm    Post subject: My Mega Percussive Synth
Subject description: thanks to Thomas Henry and E-M
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Still have to figure out why the output levels are amazingly low. I'd have thought if the mixer/output op amps were dead they'd not have any output.

But I've been able to play with it with sufficient amplification to get a sense of it, and wow....

Edit: PS yes I know it's a bandpass not a high pass, but by the time I realized it, I did not want to sand the sticker off and start over....


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Bogus Noise



Joined: Jun 03, 2009
Posts: 59
Location: Sheffield

PostPosted: Sat Jun 15, 2013 11:09 am    Post subject: Reply with quote  Mark this post and the followings unread

New update on mine!

Added some buffered multiples, a dual oscillator, and a digital noise source (that one's on the breadboard in the pic but is now panelled up and in the case)

Posted Image, might have been reduced in size. Click Image to view fullscreen.

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Bogus Noise



Joined: Jun 03, 2009
Posts: 59
Location: Sheffield

PostPosted: Sat Jun 15, 2013 11:22 am    Post subject: Reply with quote  Mark this post and the followings unread

Actually, while I'm at it, here's a couple of my newest circuit bent boxes:




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-minus-



Joined: Oct 26, 2008
Posts: 761

Audio files: 13

PostPosted: Sun Jun 16, 2013 12:50 pm    Post subject: Reply with quote  Mark this post and the followings unread

I finally got the logic synth finished...


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isak



Joined: Dec 13, 2009
Posts: 730
Location: Israel
Audio files: 18

PostPosted: Sun Jun 16, 2013 1:15 pm    Post subject: Reply with quote  Mark this post and the followings unread

-minus- wrote:
I finally got the logic synth finished...


a beauty Smile

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elmegil



Joined: Mar 20, 2012
Posts: 1535
Location: Chicago
Audio files: 14

PostPosted: Mon Jun 17, 2013 5:17 pm    Post subject: Threeler.... Reply with quote  Mark this post and the followings unread

Latest addition....


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LeftyLogic



Joined: Feb 09, 2013
Posts: 9
Location: Paola, KS

PostPosted: Sun Jun 23, 2013 8:54 pm    Post subject: Reply with quote  Mark this post and the followings unread

Finally got my first few modules up and running! Very Happy From left to right I've got two Nicolas "Super Simple" V/hz VCOs, a Nicolas Filter, ADSR, and an MFOS wall wart power supply. Still to come is a mixer, another ADSR, a couple of LFOs, a VCA, some kind of baby-10-esque sequencer, and a few effects and things. Super excited to be on the road to my very own modular synthesizer! Very Happy


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elmegil



Joined: Mar 20, 2012
Posts: 1535
Location: Chicago
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PostPosted: Sun Jun 23, 2013 9:32 pm    Post subject: Reply with quote  Mark this post and the followings unread

Welcome aboard!
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AndyR1960



Joined: Feb 16, 2007
Posts: 288
Location: Manchester UK
Audio files: 5

PostPosted: Wed Jun 26, 2013 2:28 am    Post subject: Reply with quote  Mark this post and the followings unread

I guess I've been busy recently...

Finally completed the u2K6 (micro 2600). Everything running perfectly, and sounds pretty amazing Very Happy

I used stripboard for the internal patching system... works well with no crosstalk.

Also got round to building JH's Triple Chorus (with a few mods) and the Paia Midi 2 CV (which has been on my workbench for about 6 years!!!).

Now that I've sorted all the ARP 40 series module problems out, I've started a complete ARP 2600 clone... I've copied all the PCB's and adjusted them to suit Bourns 45mm LED sliders. The cabinet is built, it just needs Tolexing and hardware put on. I've had the panel Laser Cut and powder coated and I'm just waiting for news on the Print side of things.

I may start a build thread if anyone is interested.


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Last edited by AndyR1960 on Wed Jun 26, 2013 2:38 am; edited 1 time in total
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isak



Joined: Dec 13, 2009
Posts: 730
Location: Israel
Audio files: 18

PostPosted: Wed Jun 26, 2013 2:36 am    Post subject: Reply with quote  Mark this post and the followings unread

Quote:
I may start a build thread if anyone is interested.

very interested Shocked
great job by the way Smile

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elmegil



Joined: Mar 20, 2012
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Location: Chicago
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PostPosted: Wed Jun 26, 2013 5:27 am    Post subject: Reply with quote  Mark this post and the followings unread

What isak said Smile
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analogmonster



Joined: May 30, 2011
Posts: 15
Location: Germany

PostPosted: Wed Jun 26, 2013 7:39 am    Post subject: Reply with quote  Mark this post and the followings unread

Moog Modular System 55 Clone Wink

Details on http://www.analog-monster.de/mmclone_en.html


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sduck



Joined: Dec 16, 2007
Posts: 444
Location: Nashville
Audio files: 5

PostPosted: Wed Jun 26, 2013 1:30 pm    Post subject: Reply with quote  Mark this post and the followings unread

This popped out last night -

Dual Digital Oscillator front

Dual Digital Oscillator profile

Dual Digital Oscillator back
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PHOBoS



Joined: Jan 14, 2010
Posts: 1884
Location: Moon Base
Audio files: 366

PostPosted: Wed Jun 26, 2013 1:52 pm    Post subject: Reply with quote  Mark this post and the followings unread

sduck wrote:
This popped out last night -

what ?, no COLORS ?! Shocked
sorry can't accept that Wink
(still looks nice though)

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PHOBoS



Joined: Jan 14, 2010
Posts: 1884
Location: Moon Base
Audio files: 366

PostPosted: Tue Jul 02, 2013 5:44 am    Post subject: matrix mixer Reply with quote  Mark this post and the followings unread

I couldn't get 100K pots anymore for the price I normally get them, but as part of a simple mixer kit they are slightly cheaper then buying them
seperately. So I got 5 of those kits instead.

I didn't want to waste the PCB's and have been wanting to make some simple mixers for a while anyway, and since I had a nice sized enclosure
to fit all of them I decided to make a simple matrix mixer (I have plans for a more complex one).

I did not use the 100K pots of course but I ordered a bunch of 47K pots aswell (still for the old price Very Happy). I breadboarded the circuit to test it first,
which was a very simple transistor mixer. I noticed it distorted at too low signal levels for my liking, so replaced it with a simple Fet mixer (using the
original PCB without having to cut traces or drill new holes). This worked but the output was too low so I added some opamps at the output to
boost the signal. I could have used those to mix the signal aswell but I allready had everything mounted, wired and tied up.

Drilling didn't go as planned (but as expected); the panel cracked at the second hole Crying or Very sad (glad it wasn't the last). But I still had the backpanel so
I got a second change and allthough there are some very small cracks it came out pretty well. I cut a new backpanel fom MDF and glued a 'matrix
code' print on the backpanel, which is lit by a bright green LED Cool


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PHOBoS



Joined: Jan 14, 2010
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Location: Moon Base
Audio files: 366

PostPosted: Tue Jul 02, 2013 6:48 am    Post subject: EK2100 front Reply with quote  Mark this post and the followings unread

Also finished this panel:

Posted Image, might have been reduced in size. Click Image to view fullscreen.

more info here.

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elmegil



Joined: Mar 20, 2012
Posts: 1535
Location: Chicago
Audio files: 14

PostPosted: Tue Jul 02, 2013 6:51 am    Post subject: Reply with quote  Mark this post and the followings unread

Latest Build, a Teezer. The modular is busy with other stuff so I have only been able to play with it far enough to test and calibrate it... And yes, I'm currently out of large knobs....


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PHOBoS



Joined: Jan 14, 2010
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Location: Moon Base
Audio files: 366

PostPosted: Mon Jul 15, 2013 12:51 pm    Post subject: Morpheus limiter Reply with quote  Mark this post and the followings unread

something I put together saturday.
I came across a circuit for a limiter, with separately adjustable clipping control for pos/neg halves of the signal, in an old (feb '79)
issue of Elektor magazine. Seemed useful for my no-input matrix mixer experiments so I build it in a box with a matrix themed
frontpanel Cool I also added a peak indicator which lights up if the signal is too hot and the opamp itself starts to clip.

(I'm thinking of making a digital delay next, called "Déjà Vu" Wink)



hmm just noticed the input jack is a bit off Embarassed


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elmegil



Joined: Mar 20, 2012
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PostPosted: Wed Jul 24, 2013 10:45 pm    Post subject: Reply with quote  Mark this post and the followings unread

This guy likes playing with my Klee....


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isak



Joined: Dec 13, 2009
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PostPosted: Wed Jul 24, 2013 11:19 pm    Post subject: Reply with quote  Mark this post and the followings unread

Looks nice Smile
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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: Sat Jul 27, 2013 10:24 am    Post subject: Reply with quote  Mark this post and the followings unread

Phobos - very cool limiter box. Is the LED red? If so, then you need another one on the other side that is blue Wink
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PHOBoS



Joined: Jan 14, 2010
Posts: 1884
Location: Moon Base
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PostPosted: Sat Jul 27, 2013 10:41 am    Post subject: Reply with quote  Mark this post and the followings unread

Cynosure wrote:
Phobos - very cool limiter box. Is the LED red? If so, then you need another one on the other side that is blue Wink

why didn't I think of that Shocked
yeah, I'll do that,. thanks! Laughing

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sonicwarrior



Joined: Dec 22, 2005
Posts: 231
Location: Cologne, Germany

PostPosted: Thu Aug 08, 2013 1:07 pm    Post subject: Reply with quote  Mark this post and the followings unread

Bought some blank Doepfer bus boards to stuff them with keyed headers, here are the boards 1 to 3:

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