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 Forum index » DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
Wanting short tones from 40106
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astroman



Joined: Sep 13, 2012
Posts: 44
Location: UK

PostPosted: Thu Apr 11, 2013 11:14 am    Post subject: Wanting short tones from 40106 Reply with quote  Mark this post and the followings unread

Finished Lunetta #1 and hope to put a demo vid up soon. For my next one I want to be able to make short percussion type notes. How is this acheived as opposed to a drone?
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PHOBoS



Joined: Jan 14, 2010
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PostPosted: Thu Apr 11, 2013 11:41 am    Post subject: Reply with quote  Mark this post and the followings unread

there are a lot of ways this can be achieved but a simple one that comes to mind is triggering the V+ pin of a 40106.

an example could be a switch to V+ (or an external source) followed by a potentiometer in series attached to pin14, and a
capacitor to GND (probably something in the range of 100nF to 100uF). Different values will cause different attack/decay times.

vactrols instead of the pitch pot or maybe in series with the V+ pin can also create nice short bursts.

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astroman



Joined: Sep 13, 2012
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Location: UK

PostPosted: Fri Apr 12, 2013 4:27 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanks man! I reckon with my limited knowledge I can pul his one off! I certainly get the idea of that!
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JingleJoe



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

http://electro-music.com/forum/topic-54483.html
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corex



Joined: Mar 02, 2010
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PostPosted: Mon Apr 15, 2013 3:14 pm    Post subject: Reply with quote  Mark this post and the followings unread

You could also gate your signal with an AND/NAND gate. If your signal is S and your gate G, then when G is high, G AND S will output S (meanwhile, G NAND S will output (NOT S) when G is low). With a short gate, you will get a short tone.
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