Hi Everybody - Few Questions also !

deadbeat · Joined: Feb 21, 2010 Posts: 127 Location: france

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

deadbeat · Joined: Feb 21, 2010 Posts: 127 Location: france

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

droffset · Posted: Wed Feb 24, 2010 9:03 pm Post subject:

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/

RF · Posted: Thu Feb 25, 2010 8:25 am Post subject:

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

Psyingo · Joined: Jun 11, 2009 Posts: 242 Location: Canada

electri-fire

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.