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 Forum index » DIY Hardware and Software
the snappiest adsr eg of the world schematic
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mosheen



Joined: Jun 19, 2013
Posts: 19
Location: NC

PostPosted: Thu Feb 13, 2014 1:57 am    Post subject: Reply with quote  Mark this post and the followings unread

I built one of these tonight. Works great. My function generator is starting to sound like a synth finally. Laughing
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siri



Joined: Apr 04, 2014
Posts: 6
Location: here

PostPosted: Tue Apr 07, 2015 9:51 pm    Post subject:   Reply with quote  Mark this post and the followings unread

Just made a layout for 4U systems.

I only :

- made smoother traces
- added a MTA-156 pad
- spaced the pots 3/4" center to center.

Apart for that the rest is the same, you can use the parts layout provided by frequency central.

enjoy Very Happy


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FC_ADSR-4U-LAYOUT.pdf
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jbeuckm



Joined: Nov 30, 2008
Posts: 52
Location: minneapolis
Audio files: 7

PostPosted: Fri Aug 28, 2015 9:56 am    Post subject: Reply with quote  Mark this post and the followings unread

Is the FrequencyCentral layout from the post 29/12/11 verified? It says "verified ... 30/12/11" on the image but he talks about needing to verify it in the post. Then he mentioned just having verified the layout on the 31st. Confused Question

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



Joined: Dec 13, 2009
Posts: 766
Location: Israel
Audio files: 18

PostPosted: Fri Aug 28, 2015 12:08 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hi there Smile

i built 2 X FC EG's, from a PDF.
use the attached file in my post, its verified by me.

enjoy Smile


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LFLab



Joined: Dec 17, 2009
Posts: 224
Location: Rosmalen, Netherlands

PostPosted: Fri Aug 28, 2015 12:18 pm    Post subject: Reply with quote  Mark this post and the followings unread

I've built three of of this layout, actually changed the layout to allow for 9mm Alpha pots.
Rick sells the PCBs plus panels.
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jbeuckm



Joined: Nov 30, 2008
Posts: 52
Location: minneapolis
Audio files: 7

PostPosted: Sat Aug 29, 2015 9:06 pm    Post subject: Reply with quote  Mark this post and the followings unread

Thanks! I just built my first from the PDF. It's the fastest and simplest envelope I have built. The adjustment is nice even with my linear pots - log must be really great. I want 100 of these Smile

CNC layout: https://github.com/jbeuckm/Roland-140-EG

Working with these substitutions: 2N3904 (flipped), BC556, TL071, TL082
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