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2012 Build Pictures
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inlifeindeath



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

PostPosted: Sun Jan 08, 2012 7:28 pm    Post subject: 2012 Build Pictures Reply with quote  Mark this post and the followings unread

Surprised no one has created this thread yet!
Just finished a Dual AD/AR - Dual VCA modules. EG is Ian Fritz's design made with BugBrand's PCB and the VCA is MFOS design with a board made by myself.
This last panel should wrap up my latest suitcase build! Whoo hoo!
Edit: Video here: http://youtu.be/yUUQjkOQDQA


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Last edited by inlifeindeath on Fri Jan 13, 2012 8:52 pm; edited 1 time in total
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Cynosure
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Joined: Dec 11, 2010
Posts: 717
Location: Toronto, Ontario - Canada
Audio files: 42

PostPosted: Sun Jan 08, 2012 7:59 pm    Post subject: Reply with quote  Mark this post and the followings unread



My wife loves watching television programs and movies by streaming them online. She used to use a large and heavy laptop. For Christmas I gave her an Asus Eee Transformer tablet so she has more portability. It streams the shows fine, but the speaker in it are awful - they are very quiet and sound like crap. In addition, a lot of stuff online has very low audio levels (maybe digital stuff that was mastered at -20, and never boosted when converted and posted online). We have a pair of regular computer speakers, but then she will be tied to a power outlet and have two speakers with several wires to carry around. More portable speakers are powered from USB, which will drain the tablet battery, and many of them also have many wires to manage. I decided to make a custom speaker box for her that met several goals.

Mere info here - http://www.jacobwatters.com/speaker.php

Thanks EdisonRex for helping me trouble shoot a feedback problem.


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jordroid



Joined: Jan 17, 2010
Posts: 193
Location: ithaca, new york

PostPosted: Sat Jan 14, 2012 10:08 am    Post subject: Reply with quote  Mark this post and the followings unread

Finished up a triple bandpass resonator, very much like the clone of the korg fonik has documented.

I added a level control for each BPF, dry signal level, and an LFO that I like which fades from triangle to sine to rounded square.

I also did the trick where there are actually two LFOs, one running slower than the other, and a switch to select three modes of LFO action, very much like the MOTM triple resonant filter.

Stereo mode just pans two of the BPFs to the sides, while panning the remaining one in the middle.

Thanks fonik for the idea! Sounds great on everything, especially nice on a rhodes or wurlitzer.

Keep em' coming:)

jordan


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Mooger5



Joined: May 02, 2007
Posts: 197
Location: Portugal
Audio files: 8

PostPosted: Sat Jan 14, 2012 7:24 pm    Post subject: Reply with quote  Mark this post and the followings unread

My WSG. Power starving the 40106 makes some crazy distortion which I´m begginning to appreciate and wonder if there´s such an effect for guitar already.


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mosc
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Joined: Jan 31, 2003
Posts: 17620
Location: Allentown, PA
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PostPosted: Sat Jan 14, 2012 10:46 pm    Post subject: Reply with quote  Mark this post and the followings unread

Beautiful work! Very Happy
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Boogdish



Joined: Sep 21, 2009
Posts: 122
Location: Bloomington, IN

PostPosted: Sun Jan 15, 2012 4:59 pm    Post subject: Reply with quote  Mark this post and the followings unread

Here's the last three things I've built. These are all new designs so I'll give a little description of each one.

On the left (the one with a vertical row of switches and LEDs) is my quantizer brain and a single quantizer in one panel. The quantizer brain doesn't actually process CV, just sends information about musical modes to the quantizers digitally. The switches select the notes in the scale. These can then be stored on the eeprom and the LEDs will indicate the current note set selected. The "mode" knob selects what musical mode you're selecting from the eeprom. The "offset" knob rotates the noteset, it would be potentially useful for key changes that use the same mode without re-tuning all your oscillators. I might lose that feature. The two toggle switches below that select whether new modes are automatically transmitted to the quantizers or if you need a trigger or push-switch to cause transmission. The other toggle selects between "Live" or stored mode. The push switches are from left to right, a random mode creation switch, the transmission switch and the switch to store the current switch pattern to the eeprom. Below that are jacks for external CV to control mode selection and offset and trigger inputs for random select and mode transmission. The bottom two jacks are just an input and output for the actual quantizer. The remaining toggle switch selects between -5V/+5V and 0v/10V range for the quantizer.

The module in the middle is a CV visualizer. The LEDs are arranged like a typical piano and light up whenever the corresponding note is played (the "C" is for 0V) The plastic jack is the input and the three other jacks are just used as multiples of the input (it's nice having multiples in different spots throughout the system so you're not having to patch so physically far.

The module on the right is the Chorderizer. It's also getting digital information from the quantizer brain. It applies offsets to the input voltage and the quantizes the results and outputs them. Offsets can be stored on the eeprom and then selected with 0 to 5V CV. On the top left is a push switch for random selection of a chord. The toggle next to that determines if the offsets of the chord are applied before or after the root note is quantized. The toggle on the left in the next row changes between the knobs determining offset or the select knob/cv. The next switch sets all outputs to 1V so that the multiple oscillators can be tuned together. The push switch in the middle of the module stores the current knob positions to the EEPROM. I'm really glad I finally got this thing done.
Posted Image, might have been reduced in size. Click Image to view fullscreen.
Oh, and in the background you can see a very sloppily thrown together power supply.
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inlifeindeath



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

PostPosted: Mon Jan 16, 2012 11:08 am    Post subject: Reply with quote  Mark this post and the followings unread

that's awesome! can't wait to get my hands on one of those quantizers!
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mosc
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Joined: Jan 31, 2003
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PostPosted: Mon Jan 16, 2012 2:09 pm    Post subject: Reply with quote  Mark this post and the followings unread

Boogdish, any sound samples? Looks very amazing and musical.
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fonik



Joined: Jun 07, 2006
Posts: 3760
Location: Germany
Audio files: 23

PostPosted: Tue Jan 17, 2012 7:28 am    Post subject: Reply with quote  Mark this post and the followings unread

i finally managed to finish at least one module: the combo amplifier/speaker module. it uses a TDA2030 IC and a visaton speaker. i will built two of these and mount them into my portable 9U system. they suck about 300mA each, so i will add an additional dedicated PSU.


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cheers,
matthias
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mosc
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PostPosted: Tue Jan 17, 2012 2:45 pm    Post subject: Reply with quote  Mark this post and the followings unread

Nice and professional looking... Very Happy
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tombola



Joined: Mar 11, 2005
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Location: London
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PostPosted: Thu Jan 26, 2012 7:16 am    Post subject: Reply with quote  Mark this post and the followings unread

Voltage controlled FM Radio, based on a little varactor-controlled FM circuit from Conrad
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FM Radio Module by Tom.Whitwell, on Flickr

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frequencycentral



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

PostPosted: Thu Jan 26, 2012 4:02 pm    Post subject: Reply with quote  Mark this post and the followings unread

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Cynosure
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PostPosted: Sat Jan 28, 2012 7:29 am    Post subject: UM-TSS Drum Machine Reply with quote  Mark this post and the followings unread



This is a simple drum machine that takes a clock signal, sends it through a divider, and uses the first three divisions for the rhythm. The first division filtered to be the hi-hats, the second is the kick and the third is the snare. This creates a "four on the floor" dance beat. I filter all the divisions to get the desired sounds.

More info in the build thread: http://electro-music.com/forum/topic-49054.html

And on my website: http://www.jacobwatters.com/um-tss.php


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fonik



Joined: Jun 07, 2006
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PostPosted: Sat Jan 28, 2012 4:41 pm    Post subject: Reply with quote  Mark this post and the followings unread

frequencycentral wrote:
VCLFO

is this a tom wiltshire project (electrodruid)?

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frequencycentral



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

PostPosted: Sat Jan 28, 2012 7:31 pm    Post subject: Reply with quote  Mark this post and the followings unread

fonik wrote:
frequencycentral wrote:
VCLFO

is this a tom wiltshire project (electrodruid)?


Yes it is - now completed and fully verified. As you can see, there are two PCBs - it is possible to build two different versions of the project, a simple version without voltage control just using one PCB, or a full featured fully voltage controlled version by adding the second PCB. I'm about ready to do a run of these for anyone interested.

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JingleJoe



Joined: Nov 10, 2011
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Location: Lancashire, England
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PostPosted: Sun Jan 29, 2012 3:04 am    Post subject: Reply with quote  Mark this post and the followings unread

Cynosure: I love the artwork Very Happy Lots of detail and attention went into that didn't it? It's great Very Happy
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Green Dungeon Alchemist Laboratories
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darkvortex
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Joined: Aug 19, 2011
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Location: Canberra, Australia
Audio files: 50

PostPosted: Sun Jan 29, 2012 4:35 am    Post subject: Re: UM-TSS Drum Machine Reply with quote  Mark this post and the followings unread

Cynosure wrote:

This is a simple drum machine that takes a clock signal, sends it through a divider, and uses the first three divisions for the rhythm. The first division filtered to be the hi-hats, the second is the kick and the third is the snare. This creates a "four on the floor" dance beat. I filter all the divisions to get the desired sounds.


Looks amazing!!!! Can't wait to hear you use it in a performance / improv Smile
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ericcoleridge



Joined: Jan 16, 2007
Posts: 885
Location: NYC

PostPosted: Tue Jan 31, 2012 2:58 pm    Post subject: Reply with quote  Mark this post and the followings unread

frequencycentral wrote:
fonik wrote:
frequencycentral wrote:
VCLFO

is this a tom wiltshire project (electrodruid)?


Yes it is - now completed and fully verified. As you can see, there are two PCBs - it is possible to build two different versions of the project, a simple version without voltage control just using one PCB, or a full featured fully voltage controlled version by adding the second PCB. I'm about ready to do a run of these for anyone interested.


I'd probably take. i seem to remember buying one of the PIC chips, and a little PCB.
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ericcoleridge



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Location: NYC

PostPosted: Tue Jan 31, 2012 3:24 pm    Post subject: Re: UM-TSS Drum Machine Reply with quote  Mark this post and the followings unread

Cynosure wrote:

More info in the build thread: http://electro-music.com/forum/topic-49054.html


This is a great idea; I had been thinking of similar ideas of using clock dividers for simple drum patters. I have a MiniPops that I wired up to produce a similar beat, which I've added switches to create vatiations and cancels.

I was thinking about trying to insert a pulse delay circuit to add "shuffle" to certain divisions

I love the CV Radio above also
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JingleJoe



Joined: Nov 10, 2011
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Location: Lancashire, England
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PostPosted: Sat Feb 04, 2012 4:49 am    Post subject: Reply with quote  Mark this post and the followings unread

This is my luminescent heterodyne-somethinger something or other, I can't remember what I called it now ... I'll make a thread for it in the lunetta forum with a circuit diagram and more info, go see!

This one is a genuine junk synth Very Happy

P.S. Luminescent Heterodyne Signal Decoder, thats what I called it!


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umschmitt



Joined: Jun 29, 2011
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PostPosted: Sat Feb 04, 2012 5:24 am    Post subject: Reply with quote  Mark this post and the followings unread

Haha ! I like that style ! What do you call it ? I guess the extra holes are for advanced inner temperature regulation, right ?
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mosc
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PostPosted: Mon Feb 06, 2012 8:39 am    Post subject: Reply with quote  Mark this post and the followings unread

umschmitt wrote:
Haha ! I like that style !


Me too. The knobs are perfect. Very Happy

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umschmitt



Joined: Jun 29, 2011
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PostPosted: Mon Feb 06, 2012 11:43 am    Post subject: Reply with quote  Mark this post and the followings unread

In a way less avantgardistic style than Jingle Joe's production, let me proudly (euphemism here) present my cigar box Mutant DS7 clone !
I'm happy with the result, happy that it's finished, happy with the process of doing it. I learned a lot, thanks to those here who helped (richardc64, metal_head_82, Jingle Joe and Fonik among them).
There's more about this project in the last pages here.


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inlifeindeath



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PostPosted: Mon Feb 06, 2012 11:49 am    Post subject:
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well... let hear it!
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umschmitt



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PostPosted: Mon Feb 06, 2012 12:53 pm    Post subject: Reply with quote  Mark this post and the followings unread

Yeah, let's make some art !
I already posted some sounds, like this one or that other one, which among others can be found at page twelve of the mentioned topic.
But. I've just been playing with the loop feature, including the output of a glorious if not performant Redson DU-106 © echo unit in the feedback path, and man it just takes me to another domain that I didn't even suspect… (main word here : NOISE) It's weird to build something to only discover its actual capabilities afterwards ! Now I NEED to explore that further !

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