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 Forum index » DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
Hi Everybody - Few Questions also !
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jean bender



Joined: Feb 21, 2010
Posts: 133
Location: france

PostPosted: Wed Feb 24, 2010 3:55 pm    Post subject: Hi Everybody - Few Questions also ! Reply with quote  Mark this post and the followings unread

Hi everybody ! I'm pretty new on this forum.. So i wanted to tell you i'm really happy to have discovered your work, ans such knowledge..

Well, i come from circuit bending, and i discovered cmos chips and 4000 series when i started building noises boxes.

And i look forward now.

First at all, sorry for my poor english, i think i'm not really good, i hope everybody will understand me.

I'd lilke to ask you several questions :

How can i use cv signels in my lunetta ? Is there better chips for them or not ? ( I'm thinking of using sequencers... )

Can i use different power supply for different lunettas module, or use some noises boxes which run with 12 or 15v wiht 9v modules ?

What are differencies between CMOS 4000 Series, 40000 Series and 4500 Series ?

Well, lots of stuff, i hope you'll answer me.

See you soon, Deadbeat
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jean bender



Joined: Feb 21, 2010
Posts: 133
Location: france

PostPosted: Wed Feb 24, 2010 4:47 pm    Post subject: Reply with quote  Mark this post and the followings unread

just for telling you that i'v alreaady read the lunetta document written by Mr Gonzales.
It helped me a lot, but is there somebody who could help me with the power supply question ?

How do you manage for power supplying biggest lunetta projects ?

Thanks for your answers !
cheers, deadbeat

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droffset



Joined: Feb 02, 2009
Posts: 486
Location: new zealand
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PostPosted: Wed Feb 24, 2010 9:03 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hi Deadbeat, welcome!

I just use a 9v battery to power everything because it's easy to use.

It's also very common to make a small 7805 circuit to create a 5v power source. It should be quick and easy to set up and you can input higher voltages. I'd stick to 9v or 5v though.

Make sure to see Inventor's post about his radio show. His schematics are there for a starter circuit.

Also the projects at
http://fluxplayshop.blogspot.com/

And
http://milkcrate.com.au/_other/sea-moss/

_________________
==================
Check out the FREE Intro to Lunettas Document
https://docs.google.com/Doc?docid=0AZIwOP-PR9sSZDlidzgzbV8wY3RjenJqanY&hl=en

Edit: Spelling mistakes.
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RF



Joined: Mar 23, 2007
Posts: 1493
Location: Northern Minnesota, USA
Audio files: 28

PostPosted: Thu Feb 25, 2010 8:25 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi Deadbeat Smile

..just wanted to say 'Hi" Smile and say it's nice to have you here

Myself, I don't use any of my sequencers or other CV's from the modular in my Lunetta - but I guess you could use a gate sequencer or LFO's to clock things.

Think a little differently about the Lunetta than a modular synth with CV voltages.
I have many sequencers - MFOS, Klee, Baby 10's...but I don't have any sequencer that can do the wonderful things that a couple CMOS chips can do for unusual and interesting changing patterns and beats.

have fun!

bruce


bruce

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Psyingo



Joined: Jun 11, 2009
Posts: 247
Location: Canada

PostPosted: Sat Feb 27, 2010 8:12 pm    Post subject: Re: Hi Everybody - Few Questions also ! Reply with quote  Mark this post and the followings unread

deadbeat wrote:
Hi everybody ! I'm pretty new on this forum.. So i wanted to tell you i'm really happy to have discovered your work, ans such knowledge..

Well, i come from circuit bending, and i discovered cmos chips and 4000 series when i started building noises boxes.

And i look forward now.

First at all, sorry for my poor english, i think i'm not really good, i hope everybody will understand me.

I'd lilke to ask you several questions :

How can i use cv signels in my lunetta ? Is there better chips for them or not ? ( I'm thinking of using sequencers... )

Can i use different power supply for different lunettas module, or use some noises boxes which run with 12 or 15v wiht 9v modules ?

What are differencies between CMOS 4000 Series, 40000 Series and 4500 Series ?

Well, lots of stuff, i hope you'll answer me.

See you soon, Deadbeat


as far as lunettas RECIEVING cv, there isn't alot of stuff for doing so, there are some lunetta-esque vco's and what not but signals inside lunettas are digital, so gates or triggers would work nicely from external gear.

I would try to power my creations using similar power. my mdular runs off 9v, i have my lunetta a bit higher then that, running off 12v, and its fine. another lunetta is at 9v. i sometimes worry of going over voltage on the lunetta since cmos apparently doesnt like voltages coming in over the system power.

and as far as differences between 40xx, 45xx and 401xx i have no idea, i figured they were the same series, but theres must be some kind of designation between them to require the 40, 45, and 401, perhaps its just that they ran out of numbers in 40xx and moved on to 45xx, then to 401xx?
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electri-fire



Joined: Jul 26, 2006
Posts: 535
Location: breda nl
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G2 patch files: 4

PostPosted: Mon Mar 01, 2010 2:52 pm    Post subject:
Subject description: CMOS CV controlled oscillators
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CMOS CV controlled oscillators: I've seen schematics, will post later if someone's not faster.

In the mean time; CD4046 PLL. XR2006 . Voltage to LED to LDR (diy vactrol) .

Nice: have DA converter (maybe like DAC0808, obsolete, but that's good for diy. i have them, but not tried yet)
R/2R DAC: Inventor's "four oscillator lunetta" is an example of 4 CMOS oscillators into a R/2R DAC (digital to analog converter).
If you probe the circuit with a LED and it pulses light in the appropriate way, you can attach an LDR to the LED and use the LDR as the resistor in another R/C timed oscillator. think Thingamagoop etc.
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