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 Forum index » DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
Photo-Logic Multiplex
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JingleJoe



Joined: Nov 10, 2011
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Location: Lancashire, England
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PostPosted: Mon Sep 03, 2012 3:49 am    Post subject: Photo-Logic Multiplex Reply with quote  Mark this post and the followings unread

This is my latest simple sound machine, works on a similar principle to my logic multiplex but with slightly altered functionality and greater depth of LFO control.
Schematics and photos are attached along with a sound demo Smile

It utilizes a 40106 schmitt inverter to make 3 light controlled oscillators with LDRs (Light Dependant Resistors) and 3 LFOs which just use pots. These are connected to a 4051 multiplexer connected as a programmable gate or "ANY" gate. I had a DIP switch in some old electronics which I used as the switches in the diagram below. Scavenged wood and metal were used too, for the box Smile

P.S. it is also for sale!


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sound demo 6 mins.mp3
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Uncle Krunkus
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Joined: Jul 11, 2005
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Location: Nambucca Heads, Australia
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PostPosted: Mon Oct 15, 2012 4:52 am    Post subject: Reply with quote  Mark this post and the followings unread

Just saw this Joe.
That is one cool little artifact man! Cool

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tjookum



Joined: May 25, 2010
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Location: Netherlands
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PostPosted: Mon Oct 15, 2012 1:56 pm    Post subject: Reply with quote  Mark this post and the followings unread

I love photocells for simple noise makers, cool idea to use it together with the 4051 for some rythmic variations. I really like your creations jinglejoe, cool stuff.
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