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 Forum index » DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
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M0DC3T



Joined: Aug 06, 2015
Posts: 3
Location: Somewhere

PostPosted: Fri Aug 07, 2015 10:54 pm    Post subject:  Where to start? Reply with quote  Mark this post and the followings unread

[You can skip this if you want :p]
I've been reading about analog synthesis for years now.
I even built my some modules already but I actually want to built something simple and working to mess around with.
I just looked for the term cmos synthesizer which finally brought me to this forum. I actually read alot before posting. And i think this is the kind of synth i want to work with. Small compact but brutal.

I want to start building some oscillators and some vcf's and vca's.
Does anyone have a circuit or some circuits that will do?

Is it possible to build a kind of keyboard to use with this kind of modular synth?

Thank you!
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Steveg



Joined: Apr 23, 2015
Posts: 182
Location: Perth, Australia

PostPosted: Sat Aug 08, 2015 11:12 pm    Post subject: Reply with quote  Mark this post and the followings unread

Welcome M0DC3T,

Lunettas, while technically analog tend to use rail to rail square waves and logic operations rather then the more usual VCO->VCF->VCA structure. The Lunetta designs tend not to use op-amps but depend on CMOS logic. Sequencers (including miscellaneous rhythm generators) play a bigger role than keyboards. We don't tend to have accurate tracking voltage controls or temperature compensation.

There is a recent thread on VCAs here: http://electro-music.com/forum/topic-63383.html

Phobos up-cycled a toy keyboard into a lunetta-ish system over here: http://electro-music.com/forum/topic-62321.html and there is a more complex one here: http://electro-music.com/forum/viewtopic.php?highlight=vcf&t=54141

There is talk of VCFs here: http://electro-music.com/forum/viewtopic.php?highlight=vcf&t=43897

Stuff on oscillators is hidden all over, Search is your friend. But please be sure to look at all the clever things that Lunettas can do outside of the VCO, VCF and VCA triumvirate.
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M0DC3T



Joined: Aug 06, 2015
Posts: 3
Location: Somewhere

PostPosted: Sun Aug 09, 2015 12:01 am    Post subject: Reply with quote  Mark this post and the followings unread

Steveg wrote:
Welcome M0DC3T,

Lunettas, while technically analog tend to use rail to rail square waves and logic operations rather then the more usual VCO->VCF->VCA structure. The Lunetta designs tend not to use op-amps but depend on CMOS logic. Sequencers (including miscellaneous rhythm generators) play a bigger role than keyboards. We don't tend to have accurate tracking voltage controls or temperature compensation.

There is a recent thread on VCAs here: http://electro-music.com/forum/topic-63383.html

Phobos up-cycled a toy keyboard into a lunetta-ish system over here: http://electro-music.com/forum/topic-62321.html and there is a more complex one here: http://electro-music.com/forum/viewtopic.php?highlight=vcf&t=54141

There is talk of VCFs here: http://electro-music.com/forum/viewtopic.php?highlight=vcf&t=43897

Stuff on oscillators is hidden all over, Search is your friend. But please be sure to look at all the clever things that Lunettas can do outside of the VCO, VCF and VCA triumvirate.


Do you know some must have modules to start with then?
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Steveg



Joined: Apr 23, 2015
Posts: 182
Location: Perth, Australia

PostPosted: Sun Aug 09, 2015 12:12 am    Post subject: Reply with quote  Mark this post and the followings unread

Here's some more stuff.

Chris Becksrtom"s tour of his lunetta: http://cb.hopto.org/cbfishes/2015/05/05/this-is-why-i-built-a-modular/

Dogenigt's lunetta: http://electro-music.com/forum/topic-62324.html

Synathesia's lunetta: http://electro-music.com/forum/topic-64813.html

A lunetta with schematics: http://dlbelectronics.com/lunetta

A collection of schematics: http://castlerocktronics.com/modular.html

Explore, enjoy!
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Steveg



Joined: Apr 23, 2015
Posts: 182
Location: Perth, Australia

PostPosted: Sun Aug 09, 2015 12:19 am    Post subject: Reply with quote  Mark this post and the followings unread

Personally I like musical sounds rather than noise and grunge so I'm heavily into synaesthesia's circuits. But the Chris Beckstrom video gives a good idea of a range of common circuits.

Also check out he Hack-a-Day series by logic noise (hexagon5un here) for a basic set of circuits: http://hackaday.com/tag/logic-noise/
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M0DC3T



Joined: Aug 06, 2015
Posts: 3
Location: Somewhere

PostPosted: Mon Aug 10, 2015 11:29 pm    Post subject: Reply with quote  Mark this post and the followings unread

Steveg wrote:
Personally I like musical sounds rather than noise and grunge so I'm heavily into synaesthesia's circuits. But the Chris Beckstrom video gives a good idea of a range of common circuits.

Also check out he Hack-a-Day series by logic noise (hexagon5un here) for a basic set of circuits: http://hackaday.com/tag/logic-noise/


Thanks!
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