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 Forum index » DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
Here's the 1st video of my new noise machine
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Rykhaard



Joined: Sep 02, 2007
Posts: 1290
Location: Canada

PostPosted: Tue Apr 07, 2009 8:23 pm    Post subject:  Here's the 1st video of my new noise machine Reply with quote  Mark this post and the followings unread

In this 10:19 long video, I'm using the following modules:

5 x CD40106 oscillators
2 x CD4023 Pulse Width Oscillators
1 x CD4053 SPDT switch
3 x CD40106 oscillators
1 x CD4052 4 Stage LFO
2 x CD4015 4 bit shift registers
2 x Liquid Voices
2 x 2 Input Pannable Mixers (4 inputs total)
2 x Slacker 4017 / 4051 Melody Generators
1 x 7 bit frequency divider / counter
2 x MFOS Sequencers (Gate version)

I hope you enjoy! Smile

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Lofi Ninja



Joined: Oct 25, 2008
Posts: 143
Location: Jupiter

PostPosted: Wed Apr 08, 2009 2:25 pm    Post subject: Reply with quote  Mark this post and the followings unread

Crazy !

Can you tell more about the CD4052 4 Stage LFO ? I have maybe 10 CD4052 I need to put to some use.. Do you have some sample's of this module alone ? Also what are the "Control In" and "A & B" ?

Thanks alot !

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Rykhaard



Joined: Sep 02, 2007
Posts: 1290
Location: Canada

PostPosted: Wed Apr 08, 2009 9:36 pm    Post subject: Reply with quote  Mark this post and the followings unread

Lofi Ninja wrote:
Crazy !


Great to read that! Very Happy

Quote:

Can you tell more about the CD4052 4 Stage LFO ? I have maybe 10 CD4052 I need to put to some use.. Do you have some sample's of this module alone ?


The 4 Stage LFO is the CD4052 used to switch between 4 different pots for the LFO's current speed. With the Control Inputs A and B both at Ground (no input voltage), Bit #1 for both of the CD4052's 2 x 1:4 / 4:1 multiplexers is selected. Pot # 1 is hooked up to the Bit #1 section.

If a HIGH voltage is sent to Control Input A with Control Input B held LOW (at Ground), then pot #2 at the Bit #2 position is selected and IT's speed is used for the LFO. speed.

If a HIGH voltage is sent to Control Input B with Control Input A held LOW (at Ground), then pot #3 at the Bit #3 position is selected and IT's speed is used for the LFO. speed.

Finally, if a HIGH voltage is input to Control Inputs A AND B then pot #4 at the Bit #4 position is selected and IT's speed is used for the LFO. speed.

Smile That way, if you send LOW / HIGH voltages to the 2 inputs at which ever rates that you like, you'll get an LFO cycling with 4 different speeds, depending on how long each of the Bit positions, is selected for. Smile

Quote:

Thanks alot !


No troubles. Smile

Ooops - samples. Right. In one of my very early tune demostrations that I posted here a few weeks ago, you're able to hear the 4 Stage LFO slowing modulating one of my Thomas Henry precision Triangle VCOs.

I'll have to do a specific recording of the 4 Stage to demonstrate it more properly. (I've been meaning to do that with a few of my modules, to post their examples on my bulletin board. If not tomorrow then possibly early next week.)
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Lofi Ninja



Joined: Oct 25, 2008
Posts: 143
Location: Jupiter

PostPosted: Thu Apr 09, 2009 6:24 am    Post subject: Reply with quote  Mark this post and the followings unread

Oh so the 4052 is not the LFO but is just switching the pot's for an LFO ?
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Rykhaard



Joined: Sep 02, 2007
Posts: 1290
Location: Canada

PostPosted: Thu Apr 09, 2009 8:57 am    Post subject: Reply with quote  Mark this post and the followings unread

Lofi Ninja wrote:
Oh so the 4052 is not the LFO but is just switching the pot's for an LFO ?


Exactly. Smile The # of things that it can be used for switching, is wonderful. Smile

Some time last year I'd posted a beta tested circuit example of using the 4052 to switch between 4 waveshapes, for an LFO. (The KAOS LFO). I haven't built one of them since, tho. Confused
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