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 Forum index » DIY Hardware and Software
2019 BUILD PHOTOS
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elmegil



Joined: Mar 20, 2012
Posts: 2108
Location: Chicago
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PostPosted: Fri Mar 15, 2019 7:51 pm    Post subject: Reply with quote  Mark this post and the followings unread

OMG I actually finished something! (well, for values of "finished" that mean "fully functional" not necessarily in any kind of ENCLOSURE)


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AlanP



Joined: Mar 11, 2014
Posts: 594
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PostPosted: Fri Mar 15, 2019 8:29 pm    Post subject: Reply with quote  Mark this post and the followings unread

Very nice looking! What does it do? Smile
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elmegil



Joined: Mar 20, 2012
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PostPosted: Fri Mar 15, 2019 10:01 pm    Post subject: Reply with quote  Mark this post and the followings unread

It's a 16n fader bank.

For *my* purposes, it just provides 16 CV sliders 0 - 5V. As you see it has a Teensy on it, it can also be used for USB or standard MIDI to generate CCs, and it also talks I2C to talk to Monome gear.

https://16n-faderbank.github.io/
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vladosh



Joined: Aug 02, 2010
Posts: 517
Location: macedonia
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PostPosted: Sat Mar 16, 2019 9:39 am    Post subject: Reply with quote  Mark this post and the followings unread

added a few things in the new case ,had a vc echo pcb i made myself laying around almost populated ,then a mixer as in Serge schematic i just used TL071 and added an attenuated output ,added a NLC Neuron but i added a comparator from Yusynth schematic on neuron's output simply cause there was space on the panel and the stripboard ,left is the on off switch for the PSU ,ground connection and converters .


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cslammy



Joined: Apr 27, 2018
Posts: 125
Location: USA

PostPosted: Thu Mar 21, 2019 8:04 am    Post subject: Reply with quote  Mark this post and the followings unread

finished an AD533 based balanced modulator. Based on EN preferred circuits design. Uses +/- 10V reference using LM329's.


http://audiodiwhy.blogspot.com/2019/03/balanced-modulator-part-ii-nothing-like.html

http://audiodiwhy.blogspot.com/2019/02/electronotes-balanced-modulator-part-i.html


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JovianPyx



Joined: Nov 20, 2007
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PostPosted: Thu Mar 21, 2019 9:59 am    Post subject: Reply with quote  Mark this post and the followings unread

I love Marvin the Martian. I have a portable radio with a telescoping antenna and I put a Marvin car antenna ball on it.
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vladosh



Joined: Aug 02, 2010
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PostPosted: Fri Mar 22, 2019 12:29 am    Post subject: Reply with quote  Mark this post and the followings unread

i made also the Dual Pulse Waveform Generator from Ian Fritz ,did also a small video showing the waveforms change ,you can see steady the action of the second pulse at the middle of the video

https://www.youtube.com/watch?v=fRjjLnH-Ros&t=59s


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MoonBase 69



Joined: Sep 16, 2014
Posts: 18
Location: Outpost 7, Florida

PostPosted: Tue Apr 02, 2019 8:38 am    Post subject: Reply with quote  Mark this post and the followings unread

For a friends amplifier project and my key controller panel.


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gabbagabi



Joined: Nov 29, 2008
Posts: 523
Location: will be back soon in Berlin by n8
Audio files: 23

PostPosted: Tue Apr 02, 2019 1:24 pm    Post subject: Reply with quote  Mark this post and the followings unread

cool marshall is only going up to 11
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MusicMan11712



Joined: Aug 08, 2009
Posts: 1049
Location: Out scouting . . .

PostPosted: Tue Apr 02, 2019 2:52 pm    Post subject: Reply with quote  Mark this post and the followings unread

elmegil wrote:
It's a 16n fader bank.

For *my* purposes, it just provides 16 CV sliders 0 - 5V. As you see it has a Teensy on it, it can also be used for USB or standard MIDI to generate CCs, and it also talks I2C to talk to Monome gear.

https://16n-faderbank.github.io/

Looks super nice!!! Thanks for sharing the information and the link for this project. When (and if) I ever get back to my Mega 256 based midi controller (also with sliders), I will look at this project more closely for possible ideas. Thanks for calling it to our attention. --Steve

elmegil wrote:
You can use the browser test page in Google Chrome to test the USB-MIDI output - useful for quick debugging.

Since the code the developers use relies on the WebMIDI API, several other browsers based on chrome should also work. I successfully tested some others, just don't ask me which ones (Opera, AVG, and possibly some others I might have tested with my own and others' web-based midi stuff).

2019-04-03: edited to reflect info from elmegil that he is a builder of the 16n, not the developer. Thanks for the clarification.

Last edited by MusicMan11712 on Wed Apr 03, 2019 8:05 am; edited 1 time in total
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elmegil



Joined: Mar 20, 2012
Posts: 2108
Location: Chicago
Audio files: 16

PostPosted: Tue Apr 02, 2019 5:08 pm    Post subject: Reply with quote  Mark this post and the followings unread

The 16n is not mine Smile I'm just a builder on that project.

In other news I tried to get the panels for the 16n from Ponoko but I had to convert some colors to get it accepted; I used inkscape which is apparently a problem when dealing with vector art that came from somewhere else, the scale is ridiculously off (about 150% of the needed size, and when I look at it in inkscape to verify this, it is neither the size needed, nor the size that Ponoko lasered it at, so I have no clue what the deal is.
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AlanP



Joined: Mar 11, 2014
Posts: 594
Location: New Zealand
Audio files: 35

PostPosted: Fri Apr 05, 2019 6:10 pm    Post subject: Reply with quote  Mark this post and the followings unread

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

This module is INSANELY fun. You would not believe how fun it is. I'm glad I didn't just go with the simplest controller I could find.

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

The socketed TO-92 is a jfet -- I didn't have a MPF102 on hand, so socketed a J112 in, instead. Seems to go okay.

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

This is what I have my touch strip mounted to. It looks stupid, but it works.
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elmegil



Joined: Mar 20, 2012
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PostPosted: Fri Apr 05, 2019 6:51 pm    Post subject: Reply with quote  Mark this post and the followings unread

Panel stuff ready for the Appendage? Please? Smile
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AlanP



Joined: Mar 11, 2014
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Location: New Zealand
Audio files: 35

PostPosted: Sat Apr 06, 2019 5:42 pm    Post subject: Reply with quote  Mark this post and the followings unread

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

Phobos sent me this, and it's weirdly fun. I don't think I could get away with playing with it out loud for a long time, at least while other people are in the house. (ALAN, TURN IT DOWN!)

Went together very nicely. I mucked up with the pin headers (one is not flush with the board), but it works!
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elmegil



Joined: Mar 20, 2012
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Location: Chicago
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PostPosted: Sat Apr 13, 2019 10:11 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanks to AlanP for pointing out the appendage panel PCB, and Bill for making it! Calibrated and ready for a maiden run....


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vladosh



Joined: Aug 02, 2010
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PostPosted: Thu Apr 18, 2019 10:46 am    Post subject: Reply with quote  Mark this post and the followings unread

6 Stage Programmer from Synapse Magazine by Serge with additional 1 or 2 octave switch on two rows .


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PHOBoS



Joined: Jan 14, 2010
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PostPosted: Thu Apr 18, 2019 1:25 pm    Post subject: Reply with quote  Mark this post and the followings unread

Looks great Vladko Very Happy
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vladosh



Joined: Aug 02, 2010
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PostPosted: Fri Apr 19, 2019 12:30 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanks ,it's really fun to play bounce
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kaputtpanzer



Joined: Nov 02, 2009
Posts: 100
Location: Cologne
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PostPosted: Thu May 30, 2019 12:03 pm    Post subject: Reply with quote  Mark this post and the followings unread

I built a little unipolar lfo to use with my (semi-)modular synths. it has a ramp/triangle and a pulse/square output and also attenuators to tweak the levels. It works like a charm! Cool


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AlanP



Joined: Mar 11, 2014
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Location: New Zealand
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PostPosted: Sat Jun 08, 2019 12:39 am    Post subject: Reply with quote  Mark this post and the followings unread

Posted Image, might have been reduced in size. Click Image to view fullscreen.
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Six voice polysynth, all DIY Smile

The only problem so far is that my only MIDI controller is a full size digital piano that takes up loads of space.
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MusicMan11712



Joined: Aug 08, 2009
Posts: 1049
Location: Out scouting . . .

PostPosted: Sat Jun 08, 2019 7:25 am    Post subject: Reply with quote  Mark this post and the followings unread

AlanP wrote:
Six voice polysynth, all DIY Smile

The only problem so far is that my only MIDI controller is a full size digital piano that takes up loads of space.


Looks super nice!!! As for the MIDI controller, if (as a total novice when it comes to circuits and enclosures) I can breadboard midi controller stuff with my limited skills, from what I have seen, it should be child's play for someone with your DIY talents.

Steve
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elmegil



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PostPosted: Sat Jun 08, 2019 12:18 pm    Post subject: Reply with quote  Mark this post and the followings unread

AlanP wrote:
The only problem so far is that my only MIDI controller is a full size digital piano that takes up loads of space.


Find yourself a rock band keyboard. typically $20 - $30 .... very nice very portable MIDI controller.
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Grumble



Joined: Nov 23, 2015
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Location: Netherlands
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PostPosted: Mon Jun 17, 2019 1:04 am    Post subject: Reply with quote  Mark this post and the followings unread

I made a Tap Tempi Eurorack Module.
Its inputs are a Momentary Tap Switch and a Tempo input square(pulse) signal.
The (simultaneous) outputs are: A pulse each time the Tap switch is pressed or when a leading edge of the input signal is detected, two pulses, three pulses, four pulses and an output where you can chose from the other outputs by pressing a small switch next to the other 4 outputs which tempo you want.

Short demo HERE


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AlanP



Joined: Mar 11, 2014
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PostPosted: Mon Jun 17, 2019 1:20 am    Post subject: Reply with quote  Mark this post and the followings unread

Wow, that is seriously nice.
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PHOBoS



Joined: Jan 14, 2010
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PostPosted: Mon Jun 17, 2019 2:02 pm    Post subject: Reply with quote  Mark this post and the followings unread

I actually finished something too Very Happy
can't say much about it (yet) but it creates some nice patterns.
(it doesn't create the sounds)




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