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 Forum index » DIY Hardware and Software
2019 BUILD PHOTOS
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vladosh



Joined: Aug 02, 2010
Posts: 541
Location: macedonia
Audio files: 21

PostPosted: Tue Sep 24, 2019 8:04 am    Post subject: Reply with quote  Mark this post and the followings unread

i print it on aluminum at a printing house ,drilled it myself
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AlanP



Joined: Mar 11, 2014
Posts: 640
Location: New Zealand
Audio files: 36

PostPosted: Fri Oct 11, 2019 3:09 pm    Post subject: Reply with quote  Mark this post and the followings unread

LFLabs, finally finished those VCAs you sent me Smile

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And this last photo is for Dave Skrog --

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cslammy



Joined: Apr 27, 2018
Posts: 184
Location: USA

PostPosted: Mon Oct 14, 2019 6:55 am    Post subject: Reply with quote  Mark this post and the followings unread

haebbmaster wrote:
Yes, this one
https://www.schmitzbits.de/adsr.html


Yeh!! I've built the FEITW circuit many times now. Rene should get nominated for a noble prize, this is a fantastically great sounding ADSR!!!

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AlanP



Joined: Mar 11, 2014
Posts: 640
Location: New Zealand
Audio files: 36

PostPosted: Fri Nov 01, 2019 7:24 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.
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Eurorack copy of the Buchla 258 Dual Oscillator. Very easy to get a good sound out of this.

This particular PCB set uses the THAT340 transistor array, working off Mark Verbos' annotated schematic. I've got a set of PCBs that use BC8x7DS matched pairs instead (cheaper), and will verify them in a few days.
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AlanP



Joined: Mar 11, 2014
Posts: 640
Location: New Zealand
Audio files: 36

PostPosted: Sun Nov 03, 2019 9:19 pm    Post subject: Reply with quote  Mark this post and the followings unread

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Arpad Benares' touch controller from Synapse Magazine. This was a pseudonym for Serge, and it's a very responsive touch controller indeed!

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Provided, of course, that I don't screw up. I had three resistors in the small oscillator going to ground, and not -12V, and I ran out of 22M resistors (hence the two in parallel on the back. I also had the ICs far too close to the header pins, and had to actually slide them forward as much as the sockets would let me. To do this, I had to desolder the power smoothing caps and angle them forward a bit.
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LektroiD



Joined: Aug 23, 2008
Posts: 1016
Location: Scottish Borders
Audio files: 2
G2 patch files: 2

PostPosted: Mon Nov 11, 2019 7:49 pm    Post subject: Reply with quote  Mark this post and the followings unread

System 100 clone, built with Pharmasonic PCBs...

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PHOBoS



Joined: Jan 14, 2010
Posts: 4638
Location: Moon Base
Audio files: 638

PostPosted: Wed Nov 13, 2019 6:51 pm    Post subject: Reply with quote  Mark this post and the followings unread

that's a lovely looking synth Very Happy
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AlanP



Joined: Mar 11, 2014
Posts: 640
Location: New Zealand
Audio files: 36

PostPosted: Sat Nov 23, 2019 1:15 pm    Post subject: Reply with quote  Mark this post and the followings unread

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Voiced/Unvoiced Detector, built from the Doepfer module's schematics. Originally did this for someone in 2017, finally got around to building one for myself.

I think the wires for the pots was why I put it off. I can do crimped connectors... they're just a fiddly pain in the posterior to actually do, for me.
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kaputtpanzer



Joined: Nov 02, 2009
Posts: 112
Location: Cologne
Audio files: 5

PostPosted: Tue Dec 10, 2019 6:03 am    Post subject: Reply with quote  Mark this post and the followings unread

I showed that one before, but now it got a frontpanel. Design wise it is still not finished. At first sight I was really satisfied with the edges, but then I decided to try out rounded edges on other boards and I liked it more. So I will make another run of pcbs and panels I guess Laughing


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cslammy



Joined: Apr 27, 2018
Posts: 184
Location: USA

PostPosted: Tue Dec 10, 2019 7:28 am    Post subject: Diode VCF LPF (EFM clone) Reply with quote  Mark this post and the followings unread

Blog post:
http://audiodiwhy.blogspot.com/2019/03/efm-diode-filter-where-have-you-gone.html

Website: https://www.charlielamm.com/gear/vcf/forums.html#emf-diode


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Last edited by cslammy on Wed Jan 15, 2020 7:46 am; edited 1 time in total
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richardc64



Joined: Jun 01, 2006
Posts: 673
Location: NYC
Audio files: 26

PostPosted: Mon Dec 30, 2019 8:55 pm    Post subject: Reply with quote  Mark this post and the followings unread

Under the wire...

I used a sewing machine speed control pedal, stripped of everything except slide pot and lever microswitch to voltage control the decay of a HiHat circuit. It worked well electronically. but the action didn't feel right physically, even after I added a heel rest.

The foot plate from a damaged acoustic HiHat, some wood, rubber, and a big spring gave me something that feels more like operating an actually HH.


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cslammy



Joined: Apr 27, 2018
Posts: 184
Location: USA

PostPosted: Wed Jan 15, 2020 7:34 am    Post subject: Reply with quote  Mark this post and the followings unread

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

Finished it Smile Mutable Shruthi XT, with Polivoks filter. Some LEDs arrived from Dave, so I was able to button this up.

Nice synth.


Looks great alan P! How did you do the front panel graphics?

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cslammy



Joined: Apr 27, 2018
Posts: 184
Location: USA

PostPosted: Wed Jan 15, 2020 7:38 am    Post subject: Reply with quote  Mark this post and the followings unread

AlanP wrote:
'Analog Monster' is pretty well bang on for you and your amazing projects, Carsten Smile


Ditto that. Very impressive work.

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cslammy



Joined: Apr 27, 2018
Posts: 184
Location: USA

PostPosted: Wed Jan 15, 2020 7:40 am    Post subject: Reply with quote  Mark this post and the followings unread

AlanP wrote:
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.

Eurorack copy of the Buchla 258 Dual Oscillator. Very easy to get a good sound out of this.

This particular PCB set uses the THAT340 transistor array, working off Mark Verbos' annotated schematic. I've got a set of PCBs that use BC8x7DS matched pairs instead (cheaper), and will verify them in a few days.


Great work again Alan P. If you have any PCBs left over and want to sell 'em please PM me. Thanks

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cslammy



Joined: Apr 27, 2018
Posts: 184
Location: USA

PostPosted: Wed Jan 15, 2020 7:57 am    Post subject: Hammer Cocktail LPF based on Russian 4069 Reply with quote  Mark this post and the followings unread

blog post
http://audiodiwhy.blogspot.com/2019/05/hammer-cocktail-low-parts-count-4069ub.html

Website
https://www.charlielamm.com/gear/vcf/forums.html#4069

Based on this orig EM post from "hammer"
http://electro-music.com/forum/topic-69887.html


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AlanP



Joined: Mar 11, 2014
Posts: 640
Location: New Zealand
Audio files: 36

PostPosted: Wed Jan 15, 2020 8:36 am    Post subject: Reply with quote  Mark this post and the followings unread

cslammy wrote:
AlanP wrote:
Finished it Smile Mutable Shruthi XT, with Polivoks filter. Some LEDs arrived from Dave, so I was able to button this up.

Nice synth.


Looks great alan P! How did you do the front panel graphics?


I got the case from Rob Hallik.
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