electro-music.com   Dedicated to experimental electro-acoustic
and electronic music
 
    Front Page  |  Articles  |  Radio
 |  Media  |  Forum  |  Wiki  |  Links  |  Store
Forum with support of Syndicator RSS
 FAQFAQ   CalendarCalendar   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   LinksLinks
 RegisterRegister   ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in  Chat RoomChat Room 
 Forum index » DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
simple 8 step sequecer for SL
Post new topic   Reply to topic Moderators: mosc
Page 3 of 8 [198 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
Goto page: Previous 1, 2, 3, 4, 5, 6, 7, 8 Next
Author Message
Clack



Joined: Aug 08, 2005
Posts: 436
Location: Seven Sisiters - london
Audio files: 5
G2 patch files: 1

PostPosted: Mon Aug 22, 2005 6:56 am    Post subject: Reply with quote  Mark this post and the followings unread

wow that is fantasic , i didnt expect the sound to be so clear. whats the toy ? ( and may i add what a sick toy it must be, some kind of bar fighting toy? )
Back to top
View user's profile Send private message Visit poster's website
dnny



Joined: Mar 12, 2005
Posts: 519
Location: Helsinki, Finland
Audio files: 8

PostPosted: Mon Aug 22, 2005 9:14 am    Post subject: Reply with quote  Mark this post and the followings unread

yesh thanks for your kind words.
but i don´t know whats wrong whit it - it sounds great but to control it - its nothing i planed. maybe its the crappy toy chip that is adding chaos to this thing - maybe it works nicely whit SL we don´t know - i don´t have my SL ready yet so one of you needs to test this whit it

but yes I'm very pleased whit the results i like randomness and uncontrol very much. so I'm not going to fix this "first attempt" at all - lets just leave it like this. here is another sample for you who liked the first one

i will try to get a pic of the toy when i go and visit my sisters (and i will try to look for more abandoned noise-toys)

daniel


sequli.mp3
 Description:

Download
 Filename:  sequli.mp3
 Filesize:  1.87 MB
 Downloaded:  1436 Time(s)


_________________
Association of experimental electronics
www.koelse.org
flickr: cable porn group
Back to top
View user's profile Send private message Send e-mail Visit poster's website Yahoo Messenger
Pehr



Joined: Aug 14, 2005
Posts: 1307
Location: Björkvik, Sweden
Audio files: 2

PostPosted: Wed Aug 24, 2005 4:19 am    Post subject: Reply with quote  Mark this post and the followings unread

Is it hard to scale it down to a 4-step sequencer? With only one 74HC4016, right?
_________________
YouTube channel
flickr photostream
http://loxodrom.blogspot.com
http://www.garageband.com/artist/loxodrom
http://soundcloud.com/loxodrom
Back to top
View user's profile Send private message
Pehr



Joined: Aug 14, 2005
Posts: 1307
Location: Björkvik, Sweden
Audio files: 2

PostPosted: Wed Aug 24, 2005 5:01 am    Post subject: Reply with quote  Mark this post and the followings unread

Another question I have is why both b and e on the NPN-transistor is connected to ground? If I remeber right there have to be a voltage over b-e to open c-e, right? Confused
_________________
YouTube channel
flickr photostream
http://loxodrom.blogspot.com
http://www.garageband.com/artist/loxodrom
http://soundcloud.com/loxodrom
Back to top
View user's profile Send private message
Clack



Joined: Aug 08, 2005
Posts: 436
Location: Seven Sisiters - london
Audio files: 5
G2 patch files: 1

PostPosted: Wed Aug 24, 2005 8:12 am    Post subject: Reply with quote  Mark this post and the followings unread

Pehr wrote:
Is it hard to scale it down to a 4-step sequencer? With only one 74HC4016, right?



yeh all youd have to do is connect step 5 (pin 10) to reset (pin15) then remove everything to do with step 5 and up including the second 4016 on the right and everything connected to it
Back to top
View user's profile Send private message Visit poster's website
dnny



Joined: Mar 12, 2005
Posts: 519
Location: Helsinki, Finland
Audio files: 8

PostPosted: Wed Aug 24, 2005 10:10 am    Post subject: Reply with quote  Mark this post and the followings unread

Pehr wrote:
Another question I have is why both b and e on the NPN-transistor is connected to ground? If I remeber right there have to be a voltage over b-e to open c-e, right? Confused



problem fixed.
thanks Pehr i got blind and did not see the ground - but if you use leds then you must ad ground so here is what i suggest >>>
Posted Image, might have been reduced in size. Click Image to view fullscreen.

its a bit messy but i think u all get the point


daniel

_________________
Association of experimental electronics
www.koelse.org
flickr: cable porn group
Back to top
View user's profile Send private message Send e-mail Visit poster's website Yahoo Messenger
Clack



Joined: Aug 08, 2005
Posts: 436
Location: Seven Sisiters - london
Audio files: 5
G2 patch files: 1

PostPosted: Wed Aug 24, 2005 10:33 am    Post subject: Reply with quote  Mark this post and the followings unread

hi sorry for a general electronics question , but why do the LEDs have to go to ground? its somthing I always wonder through my lack of reading books
Back to top
View user's profile Send private message Visit poster's website
Macaba



Joined: Jul 13, 2005
Posts: 160
Location: UK

PostPosted: Wed Aug 24, 2005 1:40 pm    Post subject: Reply with quote  Mark this post and the followings unread

The IC gives out a positive voltage (whatever supply voltage you give it) to the LED, and the other side needs to go to 0v AKA ground. Like hooking it up to a PP3 battery. The + is regarded as 9v, and the - is 0v AKA ground.
Back to top
View user's profile Send private message
Pehr



Joined: Aug 14, 2005
Posts: 1307
Location: Björkvik, Sweden
Audio files: 2

PostPosted: Fri Aug 26, 2005 9:23 am    Post subject: Reply with quote  Mark this post and the followings unread

Could there be a pot just before CV out to pitch all the steps simultaneously? Confused
_________________
YouTube channel
flickr photostream
http://loxodrom.blogspot.com
http://www.garageband.com/artist/loxodrom
http://soundcloud.com/loxodrom
Back to top
View user's profile Send private message
Pehr



Joined: Aug 14, 2005
Posts: 1307
Location: Björkvik, Sweden
Audio files: 2

PostPosted: Fri Aug 26, 2005 11:40 pm    Post subject: Reply with quote  Mark this post and the followings unread

Could one timer be used for more than one of these sequencers at a time? like a multi-channel? Confused
_________________
YouTube channel
flickr photostream
http://loxodrom.blogspot.com
http://www.garageband.com/artist/loxodrom
http://soundcloud.com/loxodrom
Back to top
View user's profile Send private message
dnny



Joined: Mar 12, 2005
Posts: 519
Location: Helsinki, Finland
Audio files: 8

PostPosted: Sat Aug 27, 2005 2:31 am    Post subject: Reply with quote  Mark this post and the followings unread

Pehr wrote:
Could one timer be used for more than one of these sequencers at a time? like a multi-channel? Confused


one timer can be used to many modules - so all the modules are synchronized all in one timer.

you can also ad pot for master CV


daniel

_________________
Association of experimental electronics
www.koelse.org
flickr: cable porn group
Back to top
View user's profile Send private message Send e-mail Visit poster's website Yahoo Messenger
mosc
Site Admin


Joined: Jan 31, 2003
Posts: 17606
Location: Allentown, PA
Audio files: 124
G2 patch files: 60

PostPosted: Sat Aug 27, 2005 6:42 am    Post subject: Reply with quote  Mark this post and the followings unread

You probably should put a buffer amplifier on the output of this circuit because different valuses of loads will change the voltage.

To answer Pehr's question, it's not a great idea to just put a pot in series with the output of this devices because it will load the output and also, you can only attenuate the output. This will have the effect of changing the scale.

If you want a transpose, you should use a mixer.

I'd suggest using one opamps, for a mixer of the sequencer CV and a a buffer (from a pot of any other module) and one to invert and buffer the mixer. You will have to switch the connections of the step pots around because mixers invert, but that's no big deal.


mixer.png
 Description:
 Filesize:  19.72 KB
 Viewed:  19715 Time(s)

mixer.png



_________________
--Howard
my music and other stuff
Back to top
View user's profile Send private message Send e-mail Visit poster's website AIM Address
Pehr



Joined: Aug 14, 2005
Posts: 1307
Location: Björkvik, Sweden
Audio files: 2

PostPosted: Sat Aug 27, 2005 6:53 am    Post subject: Reply with quote  Mark this post and the followings unread

Aha, I see. So the seq. CV and the transpose CV (from a keyboard CV?) is added together, right? resulting in a transpose of the sequence... Confused
_________________
YouTube channel
flickr photostream
http://loxodrom.blogspot.com
http://www.garageband.com/artist/loxodrom
http://soundcloud.com/loxodrom
Back to top
View user's profile Send private message
mosc
Site Admin


Joined: Jan 31, 2003
Posts: 17606
Location: Allentown, PA
Audio files: 124
G2 patch files: 60

PostPosted: Sat Aug 27, 2005 7:14 am    Post subject: Reply with quote  Mark this post and the followings unread

Yes. The transpose signal can be a keyboard, and osc, LFO, or even just a pot.

Add more 100K resistors on the left side of the drawing and you can add more things to mix in.

_________________
--Howard
my music and other stuff
Back to top
View user's profile Send private message Send e-mail Visit poster's website AIM Address
Clack



Joined: Aug 08, 2005
Posts: 436
Location: Seven Sisiters - london
Audio files: 5
G2 patch files: 1

PostPosted: Sat Aug 27, 2005 7:55 am    Post subject: Reply with quote  Mark this post and the followings unread

yeh i think if you plug the sequencer into both oscilators and adjust the osc pitch while sequencing you get crazy layerd results
Back to top
View user's profile Send private message Visit poster's website
Macaba



Joined: Jul 13, 2005
Posts: 160
Location: UK

PostPosted: Tue Dec 27, 2005 5:35 am    Post subject: Reply with quote  Mark this post and the followings unread

I'm going to draw up a PCB for this, i just need one thing confirmed:
I don't have any DIP switches around (AKA Piano switches) could somebody confirm that the pins on the bottom of this is arranged like a 16-pin DIL package?
Back to top
View user's profile Send private message
Uncle Krunkus
Moderator


Joined: Jul 11, 2005
Posts: 4758
Location: Sydney, Australia
Audio files: 52
G2 patch files: 1

PostPosted: Tue Dec 27, 2005 6:54 am    Post subject: Reply with quote  Mark this post and the followings unread

I'm not sure what you mean by DIP switches Mac.
_________________
What makes a space ours, is what we put there, and what we do there.
Back to top
View user's profile Send private message Visit poster's website
Macaba



Joined: Jul 13, 2005
Posts: 160
Location: UK

PostPosted: Tue Dec 27, 2005 5:09 pm    Post subject: Reply with quote  Mark this post and the followings unread

Indeed, after checking, it seems they are called DIL switches which answers my question rather well. Seems getting "merry" at christmas hurt a few brain cells. Cool
Back to top
View user's profile Send private message
Uncle Krunkus
Moderator


Joined: Jul 11, 2005
Posts: 4758
Location: Sydney, Australia
Audio files: 52
G2 patch files: 1

PostPosted: Wed Dec 28, 2005 2:00 am    Post subject: Reply with quote  Mark this post and the followings unread

Ya Dil Wink
_________________
What makes a space ours, is what we put there, and what we do there.
Back to top
View user's profile Send private message Visit poster's website
dnny



Joined: Mar 12, 2005
Posts: 519
Location: Helsinki, Finland
Audio files: 8

PostPosted: Fri Jan 06, 2006 1:12 pm    Post subject: Reply with quote  Mark this post and the followings unread

Macaba wrote:
Indeed, after checking, it seems they are called DIL switches which answers my question rather well. Seems getting "merry" at christmas hurt a few brain cells. Cool


sorry about the DIP/DIL confusion - is just that the vocabulary at my work uses the word "dipping" (in Finnish "dipata")- every time we set up a address of some lights whit these DIL- switches so it got me confused ... sorry.

Macaba have you breadboarded this design?
because it acts wierd whit the toy i have. so it might not function perfectly...

daniel

_________________
Association of experimental electronics
www.koelse.org
flickr: cable porn group
Back to top
View user's profile Send private message Send e-mail Visit poster's website Yahoo Messenger
Macaba



Joined: Jul 13, 2005
Posts: 160
Location: UK

PostPosted: Fri Jan 06, 2006 1:39 pm    Post subject: Reply with quote  Mark this post and the followings unread

I have not breadboarded it yet, but it looks like I will then, and i'll test it out in every way I can to try spot bugs.

I've been trying to snatch minutes here and there to build a soundlab, and its my intention to add on the sequencer so when I get to that stage, expect the sequencer pcb. (Hell, i might get bored soon and do it tonight Razz)

Smile

Mac
Back to top
View user's profile Send private message
Uncle Krunkus
Moderator


Joined: Jul 11, 2005
Posts: 4758
Location: Sydney, Australia
Audio files: 52
G2 patch files: 1

PostPosted: Sat Jan 07, 2006 9:24 pm    Post subject: Reply with quote  Mark this post and the followings unread

I've been playing around with this circuit and have noticed a couple of points which aren't obvious from the current schem.
1. The clock inhibit (pin13) needs to be held low otherwise it will float which may inhibit the sequence.
2. The reset on step switches do need to be a rotary so that the reset is held low except when you want it activated. Otherwise you'll get a floater which will repeatedly reset when you don't want it.

I'm about to add a second 4017 and a 4011 (4*2I-NAND) to cascade them for a 16 step.
Looks like I'll be doing a stripboard of this soon.

_________________
What makes a space ours, is what we put there, and what we do there.
Back to top
View user's profile Send private message Visit poster's website
Uncle Krunkus
Moderator


Joined: Jul 11, 2005
Posts: 4758
Location: Sydney, Australia
Audio files: 52
G2 patch files: 1

PostPosted: Sun Jan 08, 2006 3:02 am    Post subject: Reply with quote  Mark this post and the followings unread

Well I went with a 4081 (4*2I-AND) though I'm sure you can get similar results with some nand gates.
Anyway, it's flashing through a 16 step sequence even as we speak, er,,..... type.
I'm gonna have another look at the schematic publisher to see if I can draw it for ya.

_________________
What makes a space ours, is what we put there, and what we do there.
Back to top
View user's profile Send private message Visit poster's website
Macaba



Joined: Jul 13, 2005
Posts: 160
Location: UK

PostPosted: Sun Jan 08, 2006 3:43 am    Post subject: Reply with quote  Mark this post and the followings unread

Ok, go for it. I've pretty much drawn up the 8 step as a PCB, It could be nice to have the option of 16 steps on the same pcb (even though its alot more IC's!)
Back to top
View user's profile Send private message
Macaba



Joined: Jul 13, 2005
Posts: 160
Location: UK

PostPosted: Sun Jan 08, 2006 3:48 am    Post subject: Reply with quote  Mark this post and the followings unread

Uncle Krunkus wrote:

2. The reset on step switches do need to be a rotary so that the reset is held low except when you want it activated. Otherwise you'll get a floater which will repeatedly reset when you don't want it.


Could we add a 100k resistor to ground at Pin 15, so its held low until a high signal is sent (and that goes to pin 15, which hopefully has a lower resistance than the 100k to ground.)
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic Moderators: mosc
Page 3 of 8 [198 Posts]
View unread posts
View new posts in the last week
Goto page: Previous 1, 2, 3, 4, 5, 6, 7, 8 Next
Mark the topic unread :: View previous topic :: View next topic
 Forum index » DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
e-m mkii

Please support our site. If you click through and buy from
our affiliate partners, we earn a small commission.


Forum with support of Syndicator RSS
Powered by phpBB © 2001, 2005 phpBB Group
Copyright © 2003 through 2009 by electro-music.com - Conditions Of Use